Auto · County · Missouri
Gas stations in St. Louis County, MO
The gas stations in St. Louis County, MO, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 57 out of 100: Upper middle
Ranked #861 of 2,358 scored counties
#20 of 83 scored counties in Missouri
- Listings
- 372
- 343 chain locations (92%)
- Official establishments
- 282
- −4.4% since 2019
- Household spending a year
- $1B
- On gasoline and other fuels · $2,480 a household
- Spending per listing
- $2.8M
- 16% above the U.S.
- Listings per 10k households
- 9.0
- 17% below the U.S.
- Population, 2025
- 990,911
- −1.2% since 2020
See the gas stations around any address in St. Louis County
The site report maps the gas stations 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 St. Louis County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardSurvey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure
What this means
Map listings as of September 2026 show 372 gas stations in St. Louis County. Chain locations make up 92% of them, against 84% across the U.S. That comes to 9.0 for every 10,000 households, 17% below the U.S. rate of 10.9.
At $2,480 per household (4% below the U.S. average), households in St. Louis County spend about $1B a year on gasoline and other fuels. That is about $2.8M of household spending for each station on map listings, 16% above the U.S. figure of $2.4M.
In 2023, official counts showed 282 businesses with payroll in St. Louis County classed as gasoline stations, down 4.4% from 2019. That is one for every 1,468 households, against one for every 1,184 across the U.S. Official counts also show 7 one-person businesses without payroll. Since fiscal 2022, 1 SBA-backed loan worth $1.9M has gone to businesses classed as gasoline stations in St. Louis County.
Population estimates put the population change in St. Louis County from 2020 to 2025 at −1.2%, against +3.1% for the U.S. For gas stations, St. Louis County has a Groundwork market score of 57 (upper middle): #861 of 2,358 scored counties and #20 of 83 scored counties in Missouri.
How St. Louis County compares
The same measures for Missouri and the whole U.S. Spending per listing divides a year of household spending on all gasoline and other fuels by the gas stations counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.
| Measure | St. Louis County | Missouri | U.S. |
|---|---|---|---|
| Listings per 10k households | 9.0 | 13.4 | 10.9 |
| Spending per listing | $2.8M | $2M | $2.4M |
| Households per official establishment | 1,468 | 952 | 1,184 |
| Official establishment growth, 2019–2023 | −4.4% | +0.4% | −3.1% |
| Population growth, 2020–2025 | −1.2% | +1.9% | +3.1% |
| Spending per household on gasoline and other fuels | $2,480 | $2,681 | $2,595 |
| Median household income | $82,936 | $70,702 | $80,734 |
| Groundwork market score | 57 | 39 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 295 → 282−4.4% over the period
- Employees, 2023
- 3,368
- Annual payroll, 2023
- $99.2M
- One-person businesses, 2023
- 7Businesses with no payroll
- Map listings, September 2026
- 372343 chain locations
- Listings at the U.S. rate for this spending
- 430The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 1
- Amount
- $1.9M
SBA-backed loans to businesses classed as gasoline stations in St. Louis 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 St. Louis County
- Population, 2025 estimate
- 990,911−1.2% since 2020
- Households
- 413,849
- Median age
- 41.2
- Homes lived in by their owners
- 69%
- Vehicles per household
- 1.7
- Land area
- 509 sq. mi.
- People per square mile
- 1,958
- Median household income
- $82,936+23.0% vs. 2015–2019, before inflation
- Average household income
- $123,036
- Median home value
- $276,800
- Jobs located here
- 655,776
- Daytime population
- 1,175,839Residents who don’t work, plus everyone whose job is here
Looking at a specific site in St. Louis 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 gas stations on map listings by name and distance.
Or open the report at the center of St. Louis County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardGas stations across Missouri
Every Missouri market ranked →The highest-scoring counties in Missouri for gas stations, numbered among those based in Missouri, with St. Louis County marked.
Top counties in Missouri
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1St. Charles County, MO | 81 | 126 | 7.8 | $3.7M | +4.9% | #129 of 2,358 |
| 2Christian County, MO | 81 | 29 | 8.3 | $3.7M | +8.3% | #130 of 2,358 |
| 3Platte County, MO | 77 | 40 | 9.1 | $3.2M | +6.7% | #215 of 2,358 |
| 4Clay County, MO | 74 | 95 | 9.3 | $3M | +4.3% | #297 of 2,358 |
| 5Warren County, MO | 74 | 20 | 14.4 | $2.2M | +9.2% | #308 of 2,358 |
| 6Boone County, MO | 70 | 60 | 7.8 | $3.4M | +4.2% | #397 of 2,358 |
| 7Jefferson County, MO | 67 | 115 | 13.0 | $2.3M | +2.7% | #493 of 2,358 |
| 8Cass County, MO | 67 | 63 | 14.6 | $2.1M | +7.1% | #496 of 2,358 |
| 9Johnson County, MO | 66 | 29 | 13.8 | $2.1M | +4.9% | #536 of 2,358 |
| 10Webster County, MO | 65 | 19 | 13.6 | $2.2M | +10.4% | #571 of 2,358 |
| 20St. Louis County, MO | 57 | 372 | 9.0 | $2.8M | −1.2% | #861 of 2,358 |
Other business types in St. Louis County
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
Auto
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many gas stations are in St. Louis County, MO?
There are 372 gas stations on map listings in St. Louis County as of September 2026. 343 of them (92%) are chain locations. The listings count gas stations. Official counts show 282 businesses with payroll classed as gasoline stations in 2023, down 4.4% from 2019. Another 7 one-person businesses have no payroll, by official counts.
How much do households in St. Louis County, MO spend on gasoline and other fuels?
About $1B a year, or $2,480 per household. That is 4% below the U.S. average (an index of 96, where 100 is the U.S. average). Spread across the 372 gas stations on map listings, it comes to $2.8M per station. It is estimated from the incomes of the 413,849 households in St. Louis County and national spending patterns by income.
How does St. Louis County, MO compare with the U.S. for gas stations?
St. Louis County has 9.0 gas stations per 10,000 households, 17% below the U.S. rate of 10.9. Spending per station is $2.8M, 16% above the U.S. figure of $2.4M. At the national ratio of gas stations to household spending, St. Louis County would have about 430, against 372 on map listings. There is one business with payroll in the industry for every 1,468 households, against one for every 1,184 across the U.S. The official count fell 4.4% from 2019 to 2023, against −3.1% for the U.S.
How fast is St. Louis County, MO growing?
Population estimates put St. Louis County at 990,911 people in 2025, down 1.2% since 2020, against +3.1% for the U.S. It has 413,849 households. The median household income in St. Louis County is $82,936 a year, 3% above the U.S. median of $80,734. That rose 23.0% 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. St. Louis County scores 57 for gas stations (upper middle), #861 of 2,358 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in St. Louis County. It maps the gas stations 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 gas stations · All 56 business types in St. Louis County
Screening a site or an acquisition in St. Louis 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 St. Louis 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.