Groundwork

Groceries and convenience · County · California

Grocery and convenience stores in San Mateo County, CA

Competitor counts, household spending and official business counts for grocery and convenience stores in San Mateo County, CA, set against other counties and the U.S.

Groundwork market score · out of 100

Score 62 out of 100: Upper middle

Ranked #692 of 2,402 scored counties
#12 of 55 scored counties in California

Listings
397
152 chain locations (38%)
Official establishments
224
+3.2% since 2019
Household spending a year
$2B
On groceries · $7,490 a household
Spending per listing
$5M
47% above the U.S.
Listings per 10k households
15.0
20% below the U.S.
Population, 2025
743,568
−2.5% since 2020

See the grocery and convenience stores around any address in San Mateo County

The site report maps the grocery and convenience stores on map listings near the address, by name and distance, and sizes the households and spending around it. Or open the report at the center of San Mateo County. Signed out, you see a blurred preview; on an account, each report is one action.

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Survey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure

What this means

At $7,490 per household (19% above the U.S. average), households in San Mateo County spend about $2B a year on groceries. That works out to $5M per store, 47% above the U.S. figure of $3.4M.

There are 397 grocery and convenience stores on map listings in San Mateo County as of September 2026. Of those, 152 are chain locations, or 38%, against 42% across the U.S. Per 10,000 households, that is 15.0, 20% below the U.S. rate of 18.7.

The official count of businesses with payroll classed as grocery and convenience stores in San Mateo County was 224 in 2023, up 3.2% from 2019. That is one for every 1,180 households, against one for every 1,293 across the U.S. Official counts also show 112 one-person businesses without payroll. Since fiscal 2022, 13 SBA-backed loans worth $8.1M have gone to businesses classed as grocery and convenience stores in San Mateo County.

Between 2020 and 2025, the population of San Mateo County declined 2.5%, against +3.1% for the U.S. The Groundwork market score for grocery and convenience stores in San Mateo County is 62 (upper middle), #692 of 2,402 scored counties and #12 of 55 scored counties in California.

How San Mateo County compares

The same measures for California and the whole U.S. Spending per listing divides a year of household spending on all groceries by the grocery and convenience stores counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

Grocery and convenience stores in San Mateo County, CA compared with California and the U.S.
MeasureSan Mateo CountyCaliforniaU.S.
Listings per 10k households15.018.118.7
Spending per listing$5M$3.6M$3.4M
Households per official establishment1,1801,2141,293
Official establishment growth, 2019–2023+3.2%+5.3%+7.2%
Population growth, 2020–2025−2.5%−0.4%+3.1%
Spending per household on groceries$7,490$6,548$6,319
Median household income$158,855$99,122$80,734
Groundwork market score6249

Official counts and lending

Businesses

Official establishments, 2019 to 2023
217 → 224+3.2% over the period
Employees, 2023
8,122
Annual payroll, 2023
$329M
One-person businesses, 2023
112Businesses with no payroll
Map listings, September 2026
397152 chain locations
Listings at the U.S. rate for this spending
585The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
13
Amount
$8.1M

SBA-backed loans to businesses classed as grocery and convenience stores in San Mateo County, through June 2026, placed by the borrower’s ZIP code. Official establishments are businesses with payroll; the official counts leave out places with fewer than 3.

Population and households in San Mateo County

Population, 2025 estimate
743,568−2.5% since 2020
Households
264,419
Median age
41.8
Homes lived in by their owners
58%
Vehicles per household
1.9
Land area
449 sq. mi.
People per square mile
1,655
Median household income
$158,855+29.5% vs. 2015–2019, before inflation
Average household income
$231,822
Median home value
$1,559,600
Jobs located here
425,111
Daytime population
795,447Residents who don’t work, plus everyone whose job is here

Looking at a specific site in San Mateo County?

These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the grocery and convenience stores on map listings by name and distance.

Or open the report at the center of San Mateo County. Signed out, you see a blurred preview; on an account, each report is one action.

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Grocery and convenience stores across California

Every California market ranked →

The highest-scoring counties in California for grocery and convenience stores, numbered among those based in California, with San Mateo County marked.

Top counties in California

Counties in California ranked for grocery and convenience stores by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Placer County, CA8522013.9$4.9M+8.9%#99 of 2,402
2San Benito County, CA803818.5$3.7M+8.6%#188 of 2,402
3El Dorado County, CA7410714.0$4.8M+0.6%#311 of 2,402
4Riverside County, CA731,24816.1$4M+5.0%#354 of 2,402
5Contra Costa County, CA7155213.3$5.3M+0.3%#402 of 2,402
6Santa Clara County, CA7092414.0$5.4M−0.9%#427 of 2,402
7Orange County, CA661,68015.5$4.4M−1.1%#550 of 2,402
8Solano County, CA6625516.2$4M+0.6%#555 of 2,402
9Amador County, CA662817.4$3.5M+3.2%#560 of 2,402
10San Diego County, CA651,80415.4$4.3M−0.6%#581 of 2,402
12San Mateo County, CA6239715.0$5M−2.5%#692 of 2,402

Other business types in San Mateo County

Each with its Groundwork market score here, out of 100, where it has one.

Questions

How many grocery and convenience stores are in San Mateo County, CA?

As of September 2026, map listings count 397 grocery and convenience stores in San Mateo County. 152 of them (38%) are chain locations. The listings count grocery, convenience and specialty food stores. Official counts show 224 businesses with payroll classed as grocery and convenience stores in 2023, up 3.2% from 2019. Another 112 one-person businesses have no payroll, by official counts.

How much do households in San Mateo County, CA spend on groceries?

About $2B a year, or $7,490 per household. That is 19% above the U.S. average (an index of 119, where 100 is the U.S. average). Spread across the 397 grocery and convenience stores on map listings, it comes to $5M per store. It is estimated from the incomes of the 264,419 households in San Mateo County and national spending patterns by income.

How does San Mateo County, CA compare with the U.S. for grocery and convenience stores?

San Mateo County has 15.0 grocery and convenience stores per 10,000 households, 20% below the U.S. rate of 18.7. Spending per store is $5M, 47% above the U.S. figure of $3.4M. At the U.S. ratio of grocery and convenience stores to household spending, San Mateo County would have about 585, against 397 on map listings. There is one business with payroll in the industry for every 1,180 households, against one for every 1,293 across the U.S. The official count rose 3.2% from 2019 to 2023, against +7.2% for the U.S.

How fast is San Mateo County, CA growing?

Population estimates put San Mateo County at 743,568 people in 2025, down 2.5% since 2020, against +3.1% for the U.S. It has 264,419 households. The median household income in San Mateo County is $158,855 a year, 97% above the U.S. median of $80,734. That rose 29.5% from the 2015–2019 survey, before inflation.

What is the Groundwork market score?

The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. San Mateo County scores 62 for grocery and convenience stores (upper middle), #692 of 2,402 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in San Mateo County. It maps the grocery and convenience stores on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.

How the score works · Top markets for grocery and convenience stores · All 56 business types in San Mateo County

Screening a site or an acquisition in San Mateo County?

A site report maps the competitors on map listings near an address and sizes the households and spending around it.

The button opens the report at the center of San Mateo County. Signed out, you see a blurred preview; on an account, each report is one action.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are estimates for research only. Not investment or real estate advice.