Costco Warehouse Locations in the USA: Count, Drive-Time Reach and Trade-Area Demographics (2026)

The people Costco can reach are markedly better off than the country as a whole: they earn $126,956 a year on average against $113,517 nationally. Most households that can reach a Costco cannot reach a second: 33.4% of the households Costco reaches can get to two or more within 15 minutes.

This report asks how far Costco's warehouses actually reach: not how far away they are in miles, but how many households can drive to one and how quickly, what those households earn, how many have a second Costco to choose from, and which metropolitan markets the chain trades in and which it has left alone. Every figure is measured along the real road network and apportioned down to census block level, so the reach is what a car can cover rather than a circle drawn on a map. The short answer is 50.3 million households within a 15-minute drive, 38.9% of the country's 129.2 million, earning $6.38tn a year between them.¹

3.2% of households are within five minutes of a Costco; 66% are within thirty. Almost nobody lives five minutes from a Costco. At this chain's scale a visit is a planned trip, and the thirty-minute figure is the one that describes it. Households within five minutes of a Costco earn 4% less than those within thirty: $118,921 a year on average, against $124,426.

Key findings

• As of 20 September 2026, ScrapeHero tracks 648 Costco locations in the United States, across 47 states and 571 distinct cities and towns. (More: Where the 648 locations are)
• 38.9% of US households, 50.3 million of 129.2 million, are within a 15-minute drive of a Costco warehouse, measured along real roads rather than as a straight-line radius. (More: Who can actually get to a Costco)
• Coverage rises from 3.2% within a 5-minute drive to 66% within 30 minutes. A warehouse on your doorstep and a warehouse you could drive to are different things, which is why every figure on this page names its band. (More: Who can actually get to a Costco)
• Households nearest a Costco are less well off than those further out: those within 5 minutes earn $118,921 a year on average, against $124,426 within 30 minutes. (More: Who lives near a Costco, and what do they earn?)
• Households within a 15-minute drive of a Costco earn $126,956 a year on average, against $113,517 for the country as a whole, an Income Capture Ratio of 1.118, where 1 would be exactly average. (More: Who lives near a Costco, and what do they earn?)
• 33.4% of the households Costco reaches within 15 minutes can reach two or more Costco warehouses, so the footprint is denser than the warehouse count alone implies. (More: Who can actually get to a Costco)
• California has the most Costco warehouses of any state, 145, while Nevada has the highest household reach at 81.5% within 15 minutes. (More: How many Costco warehouses each state has, and how many households can reach them)
• Costco has a warehouse in 198 of the 387 US metropolitan areas. Los Angeles-Long Beach-Anaheim holds the most, 38 warehouses, reaching 80.8% of its households within 15 minutes. (More: Which markets does Costco trade in?)

Where the 648 locations are

Costco operates 648 warehouses in the United States, spread across 47 states and 571 separate cities and towns, and mostly in the towns and cities rather than between them.

The US Census marks every census block urban or rural. By that measure 625 of Costco's 648 stand in an urban area (96.5%) and 17 in a rural one (2.6%)⁶. Of the people Costco reaches within a 15-minute drive, 98.5% live in an urban area, against 80% of the country as a whole.

Some Costco warehouses stand in crowded places and some in thinly populated ones, which makes an enormous difference to how many people are nearby. Sorted by the population density of their own trade areas, in people per square kilometre, the thinnest tenth have 36,672 households within a 15-minute drive⁹. The densest tenth have 181,386, roughly 5 times more. The people near the crowded ones are also better off, by $15,122 a year.

Who can actually get to a Costco

38.9% of US households can reach a Costco inside a 15-minute drive. That is 50.3 million households of 129.2 million, or 132 million people. We work it out by taking every home in the country and asking how long it would take to drive to the nearest Costco, at 5, 10, 15, 20, 25 and 30 minutes. A home near two Costco warehouses counts once. The shape that comes out is the warehouse's trade area¹⁰.

Costco is a membership club, which the reach figure does not know. Household Reach counts the households that could drive to a warehouse, which is what a site or a market is judged on. Walking in with a trolley also needs a paid membership, and this page carries no figures on who holds one.

A drive time here does not know two things. It uses posted speed limits with no congestion model, so every figure on this page is an upper bound: a real drive in a dense market at peak hours is slower, and a minute of delay is a fifth of a five-minute budget against a thirtieth of a thirty-minute one. And it assumes a car, so a household with no vehicle is counted as reached while being unable to make the drive.⁵

10.2% of the households inside a 15-minute Costco trade area own no vehicle, against 8.3% of households nationally.

Counting only households that own a vehicle moves Costco's reach from 38.9% to 38.2%.

Costco household reach at each drive time

Double the time from 15 minutes to 30 and the ground a warehouse covers, its trade-area footprint, grows around 6 times bigger, and it picks up another 27.1% of US households.

How many households can reach more than one Costco warehouse

A minority of the households that can reach a Costco have a second one choose from. 33.4% of the households that can reach a Costco in 15 minutes can reach two or more of them. At five minutes 1.8% of the households that can reach a Costco can reach a second one, and at thirty minutes 71.6%.

33.5 million households have exactly one Costco within reach. Another 213,516 have six or more.

Who lives near a Costco, and what do they earn?

Households within a 15-minute drive of a Costco earn $126,956 a year on average. The figure for the country as a whole is $113,517. So the people Costco can reach earn 12% more than the national average, which is a markedly wealthier footprint than the country's. Added together, everyone in that catchment earns $6.38tn a year: the chain's Trade Area Buying Power.

On the Income Capture Ratio, which compares what the households a chain reaches earn against the country as a whole, 1 is exactly average and Costco scores 1.118, markedly above the middle. Above 1 means it reaches wealthier households than the country's average; below means less wealthy.

Households within five minutes of a Costco earn $118,921; go out to thirty minutes and the figure rises to $124,426, 10% above the national average. In other words, the households closest to a Costco are less well off than the ones further out, by 4%.

Warehouse by warehouse the numbers differ enormously. The typical Costco, meaning the median warehouse with half above it and half below, has 84,769 households within a 15-minute drive. Ranked by how many households are nearby, the bottom tenth of warehouses, the 10th percentile, have 36,445 nearby; the top tenth, the 90th percentile, have 203,351 or more.

Costco trade-area size: how many households a single warehouse has nearby

What the people around each Costco earn

Rank all 648 warehouses again, this time by the median household income of the people living around them, and the middle warehouse sits at $120,951 a year. The bottom tenth are under $92,642 and the top tenth over $167,293. This page reports aggregates; it does not name individual warehouses.

Is Costco trading in expensive places or cheap ones?

Expensive ones: local prices where Costco trades run above the US average. On the Bureau of Economic Analysis's Regional Price Parities, which set the United States at 100 and measure every metro and state against it, the places Costco trades in come out at 103.9.⁴ So the $126,956 its households earn on average is worth $122,159 once you allow for local prices, less than the raw figure suggests by $4,797.

How many Costco warehouses each state has, and how many households can reach them

California has more Costco warehouses than any other state, 145. The fewest, among the 47 states that have any, is 1 in Arkansas. Of the 50 states, 3 have none: Rhode Island, West Virginia and Wyoming.

Household Reach is the share of a state's households living within a 15-minute drive of at least one Costco. Nevada is the highest state at 81.5% and Arkansas the lowest at 4.5%, an 18.1× range⁷. The figure for the country as a whole is 38.9%.

Warehouse count and household reach rank states differently. Of the 8 states with 20 or more locations, these two sit furthest apart on the two measures. Texas is 2nd by warehouse count (49 locations) and 7th by household reach (45.7%). Arizona is 7th by warehouse count (20 locations) and 3rd by reach (57.8%).

Household Reach can be thin at 15 minutes and near-complete at thirty in the same state. Connecticut gains 50.7 percentage points between the two, which says the warehouses there are positioned for a drive rather than for a neighbourhood.

Coverage is uneven enough to sort the states into three groups¹¹: the broad ones, the partial ones and the thin ones. Of the states Costco trades in, 2 are at or above 75% within 15 minutes and 17 are below 25%.

See all 51 states

Costco warehouses and household reach by US Census region

Grouped into the four Census Bureau regions, Costco reaches most of the West, where 65% of households are within a 15-minute drive, and least of the South at 29.4%. The West holds 284 warehouses and the South 178.

Which markets does Costco trade in?

About half: Costco has a warehouse in 198 of the 387 metropolitan areas in the United States. Below: which cities and metro areas it trades in, and how the network splits between big cities, small ones and the countryside.

Costco warehouses by US city name, and by metropolitan area

A city name here is the postal city on a warehouse's address. City limits are set by annexation, so they vary widely in how much of a market they contain. The table gives the warehouse count for each city name alongside the metropolitan area it belongs to, and the share of that metro's warehouses the city holds¹².

See all 20 cities

Chicago-Naperville-Elgin spreads its Costco warehouses across 19 separate city names.

Anchorage contains 100% of its metropolitan area's Costco warehouses. Chicago contains 13.6% of its own; the remaining 86.4% of that market carries other city names.

Costco warehouses and household reach across US metropolitan areas

City limits are a poor guide to a market, so the rest of this section uses metro areas instead: a city plus the surrounding counties whose residents commute into it. The formal name is a metropolitan statistical area, or a Core Based Statistical Area, and its boundary is drawn from commuting patterns rather than from city limits.³ And because a metro is a whole number of counties, rolling reach up to metro level is exact arithmetic rather than an approximation. Costco warehouses sit in 333 US counties.

See all 25 metropolitan areas

San Diego-Chula Vista-Carlsbad is the strongest of the 25 largest metros Costco trades in, at 86.2% of households within 15 minutes, and Pittsburgh the weakest at 12.8%.

In Pittsburgh even a thirty-minute drive reaches 56.8% of households, the lowest of the metros listed here. Adding warehouses would not necessarily change that: the figure is set by how far the road network reaches in half an hour, which is what we measure.

How thinly the warehouses are spread varies too. Measured as households per warehouse, Pittsburgh has one Costco for every 45,439 households; New York-Newark-Jersey City has one for every 149,271, a 3.3× difference between two large American metros that no national figure can show.

189 metropolitan areas have no Costco at all. The largest is Providence-Warwick, 675,395 households.

Where Costco warehouses sit: metropolitan, micropolitan, and everywhere else

Not everywhere is a city. Every county in the United States is one of three kinds: built around a city, built around a town, or neither. The official terms are metropolitan, for an urban core of 50,000 people or more, micropolitan, for 10,000 to 50,000, and outside any metro area for the rest. Where a chain's stores fall across the three says something a warehouse count cannot.

11 of Costco's 648 locations (1.7%) sit outside any metropolitan area, all of them in counties built around a town rather than around neither, against 98.3% in a metropolitan county.

Measured separately inside each class, Costco reaches 45.2% of the households in metropolitan counties and none of those outside any metro or micro area.

How these numbers are produced

Each figure is a population-weighted apportionment of American Community Survey block-group estimates onto inbound drive-time catchments, computed per warehouse on a routable OpenStreetMap network graph and deduplicated at census-block level across the chain.¹

Three dates govern any drive time. The road network was built 21 August 2026, the store list was refreshed 20 September 2026, and the demographics are the ACS 2024 5-year release covering 2020–2024, with every money figure in 2024 dollars.² Roads opened since the network was built do not appear, which understates reach slightly in fast-growing areas.

This page states what is measured and where it falls short. The detailed statistical treatment is documented: apportionment validation, the sensitivity tests behind each parameter, the routing-engine comparisons, and the error bounds on every band. Buyers and academic researchers can enquire: https://www.scrapehero.com/contact-us/

The tables in full, for reference

The tables from further up, in full or as far as this page takes them. Every state and the District of Columbia appears. The city and metropolitan tables are longer here than above but still ranked and cut: Costco trades in more places than a page can hold, so those two stop rather than running on. Sources: ACS 2024 5-year

Costco warehouse counts and household reach, state by state

All 50 states and the District of Columbia, each with the number of Costco warehouses, the share of that state's households within 5, 15 and 30 minutes' drive of one, the households reached per warehouse, and the coverage band. These are the 51 rows the shortened table further up is drawn from.

Costco warehouse counts by city, and the metropolitan area each city sits in

US cities ranked by how many Costco warehouses they hold, most first. Each row carries the city's own warehouse count, the metropolitan area it belongs to, how many Costco warehouses that whole metro holds, how many separate city names the metro spans, and the share of the metro's warehouses this one city accounts for. A city here is the postal city on a warehouse's address, not a municipal boundary.

Costco warehouse counts and household reach by US metropolitan area

US metropolitan areas ranked by how many households they contain, biggest first. Each row carries the number of Costco warehouses in that metro and the share of the metro's households within 5, 15 and 30 minutes' drive of one, plus the households reached per warehouse. A metropolitan area, formally a Core Based Statistical Area, is a city plus the surrounding counties that commute into it.

Costco household reach, buying power and income by drive time, 5 to 30 minutes

The full table, with every measure the 15-minute headline is drawn from: household counts and their margin of error, population, Trade Area Buying Power, average household income, the Income Capture Ratio, self-overlap and the share of reached households with no vehicle. The MOE column is the American Community Survey's own 90% margin of error, propagated through the apportionment.

How to cite this report

These figures may be quoted with attribution. A named metric such as Household Reach or Income Capture Ratio should carry its definition and drive-time band, because the number is not meaningful without them.

This page is the summary. The data is the product. Every figure above is an aggregate. The underlying dataset has one row per location, carrying addresses, coordinates and attributes, for Costco and other US chains, refreshed on a schedule: https://www.scrapehero.com/store/

What the words on this page mean

Plain definitions for the vocabulary of retail location analysis and site selection. Each term is used somewhere above.

Trade area

The area from which a warehouse can be reached within a given drive, measured along real roads. It describes access, not observed customer origin.

Trade-area footprint

The total ground a chain covers once every warehouse's trade area is combined. Overlaps are counted once, so the footprint is smaller than the sum of the parts.

Urban area

The US Census Bureau's 2020 urban/rural classification, applied to every census block. A block is urban if it falls inside a densely settled territory the Bureau delineates after each decennial census; everything else is rural. Nationally 80% of people live in an urban area. It is a published classification, not one of ours, and it is not the same thing as a metropolitan area, which is drawn from commuting patterns.

Metropolitan area

A city plus the surrounding counties whose residents commute into it, as delineated by the US Office of Management and Budget. Formally a Core Based Statistical Area, or CBSA. The boundary follows commuting patterns rather than city limits, and a metro is always a whole number of counties, which is why reach can be rolled up to metro level exactly. It is not the same thing as an urban area, which is the Census Bureau's density classification applied block by block.

Trade-area size

How many people or households one warehouse has within its own trade area, also called trade-area population and trade-area households. It describes the area around a warehouse, not the warehouse: nothing here measures floor area, product range or takings.

Drive-time isochrone

The technical name for the shape we measure: everywhere reachable within a set number of minutes' driving. A drive-time isochrone follows the road network, so it stretches along highways and stops where the roads do.

Drive-time band

One of the six distances measured here: 5, 10, 15, 20, 25 and 30 minutes. Every figure on this page names the band it belongs to.

Household Reach

The share of all US households living within a given drive of at least one warehouse. Households near two warehouses are counted once. For Costco at 15 minutes it is 38.9%.

Trade Area Buying Power

The total household income earned by everyone inside the trade area, $6.38tn for Costco at 15 minutes. It is a measure of the money in the area, not of what anyone spends in the warehouse.

Income Capture Ratio

Whether a chain reaches wealthier or poorer households than the country average. It is the trade area's share of national household income divided by its share of households; 1 is the national average. Costco scores 1.118.

Self-overlap

The share of reached households that can get to two or more of the same chain's stores. It is 33.4% for Costco at 15 minutes.

Census block group

The small area the census reports its figures for, roughly 600 to 3,000 people, about a neighbourhood. It is the finest grain at which the American Community Survey publishes income.

American Community Survey (ACS)

The US Census Bureau survey behind every demographic figure here. The 5-year release averages responses over five years to make small areas reliable; this page uses ACS 2024 5-year covering 2020–2024.

Frequently asked questions

How many Costco warehouses are there in the USA?

ScrapeHero tracks 648 Costco locations in the United States as of 20 September 2026, across 47 states. This is an independently scraped count, deduplicated to one record per coordinate.

What percentage of Americans live near a Costco?

38.9% of US households, 50.3 million of 129.2 million, are within a 15-minute drive of a Costco. At 30 minutes it is 66%, and at 5 minutes 3.2%.

Which state has the most Costco warehouses?

California has the most locations (145). But the state where Costco reaches the largest share of households is Nevada at 81.5%, with 9 warehouses. Warehouse count and household reach are different questions.

How is Costco's trade area calculated?

Each warehouse's trade area is a drive-time isochrone computed on the OpenStreetMap road network: the set of places genuinely reachable in N minutes of driving. Census block groups are apportioned into it by population, so a block group that is half inside contributes the half that is actually inside.

Are Costco trade areas wealthier or poorer than the US average?

The average household inside a Costco 15-minute trade area earns $126,956, against $113,517 for the US. That is an Income Capture Ratio of 1.118, wealthier.

How often is this Costco location data updated?

The store list behind this page was last refreshed on 20 September 2026. Demographic inputs are the ACS 2024 5-year release. Drive-time polygons are recomputed when the road network is rebuilt, most recently 21 August 2026.

Can I download the Costco store list?

Yes. This page publishes aggregates; the underlying dataset has one row per location with addresses, coordinates and attributes, for Costco and other US chains: https://www.scrapehero.com/store/

What is a trade area?

A trade area is the area from which a warehouse can be reached within a given drive, also called a market area, a catchment area, a warehouse catchment or a trading area. It describes access, not observed visits.

What is Household Reach?

Household Reach is the share of all US households living within a given drive of at least one warehouse, with households near two warehouses counted once. For Costco at 15 minutes it is 38.9%.

What is Trade Area Buying Power?

Trade Area Buying Power is the total household income earned by everyone inside a chain's trade area. It is $6.38tn for Costco at 15 minutes, in 2024 dollars. It measures the money in the area, not what anyone spends in the warehouse.

Sources and definitions

1. Drive-time catchments computed on an OpenStreetMap street network with OpenRouteService 9.10.0; demographics from the US Census Bureau, American Community Survey 2020–2024 five-year estimates, at block-group level. ↩
2. Street network data © OpenStreetMap contributors, available under the Open Database License (ODbL), https://opendatacommons.org/licenses/odbl/. Census Bureau data are in the public domain. ↩
3. Metropolitan and micropolitan area definitions: US Office of Management and Budget, Core Based Statistical Area delineations, as published. ↩
4. Price levels: US Bureau of Economic Analysis, Regional Price Parities; inflation adjustment where used: US Bureau of Labor Statistics, Consumer Price Index. ↩
5. Vehicle availability: US Census Bureau, American Community Survey table B25044, Tenure by Vehicles Available, at block-group level. Its universe is 127.46 million occupied housing units at the 2023 five-year estimates, against the 129.2 million households the reach figures are measured against at the 2024 estimates. The vehicle shares on this page are computed within B25044's own universe, so the one-year difference does not enter them. ↩
6. The two figures do not sum to 648 because 6 warehouses sit just offshore of every mapped census block group. They are left unclassified rather than assigned to a side. ↩
7. The District of Columbia is in this table because the coverage it reports is real, but it is not a state, so it is left out of the highest-state and lowest-state figures. On some chains its reach is higher than any state's. ↩
8. 5 of the 648 locations are Costco Home Showrooms, which are furniture showrooms rather than full warehouses. They are counted here like any other location. ↩
9. Density groups are ours, not a published classification: each warehouse is grouped by the population of its own 15-minute trade area divided by that area, cut at 100, 500 and 1,500 people per square kilometre. They describe how crowded a warehouse's catchment is and say nothing about whether the warehouse is in a town, which is the separate Census urban and rural question answered above; the two do not agree, because the Census urban line sits near 386 people per square kilometre while the densest group here starts at 1,500. ↩
10. A trade area, as this page uses the term, is the set of places a driver could set off from and still reach the warehouse inside the time. It is our definition and our choice of 15 minutes as the headline, not a property of the warehouse. It measures who can get there: any reach figure holds only for its own drive time, and none of them says anything about who actually goes. ↩
11. Saturated, broad, partial and thin are our own labels, not a published classification: they are the 15-minute household reach in each state, cut at 85%, 70% and 55%. They describe how much of a state's population sits within a 15-minute drive and nothing about how a state performs commercially. ↩
12. A city's share is the warehouses carrying that postal city name divided by all warehouses anywhere in the metropolitan area it belongs to. A city is assigned to the metro where most of its warehouses fall, so a city name straddling two metros is attributed to one of them. Shares for cities in the same metro therefore do not add up to 100%: each is measured against the whole metro, and the remaining city names in it carry the rest. San Diego and Chula Vista, for instance, are separate city names inside San Diego-Chula Vista-Carlsbad, CA, which holds 14 warehouses in total, so each is measured against that same denominator. ↩