Health care · County · Missouri
Primary care and pediatric clinics in St. Louis County, MO
The primary care and pediatric clinics 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 50 out of 100: Upper middle
Ranked #824 of 1,656 scored counties
#29 of 43 scored counties in Missouri
- Listings
- 268
- 42 chain locations (16%)
- Official establishments
- 1,081
- −4.0% since 2019
- Household spending a year
- $637.9M
- On medical and dental services · $1,541 a household
- Spending per listing
- $2.4M
- 34% above the U.S.
- Listings per 10k households
- 6.5
- 10% below the U.S.
- Population, 2025
- 990,911
- −1.2% since 2020
See the primary care and pediatric clinics around any address in St. Louis County
The site report maps the primary care and pediatric clinics 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 268 primary care and pediatric clinics in St. Louis County. 42 of them (16%) are chain locations, against 9% across the U.S. Per 10,000 households, that is 6.5, 10% below the U.S. rate of 7.2.
At $1,541 per household (20% above the U.S. average), households in St. Louis County spend about $637.9M a year on medical and dental services. That is about $2.4M of household spending for each clinic on map listings, 34% above the U.S. figure of $1.8M. That spending covers all medical and dental services, which primary care and pediatric clinics share with other businesses in the trade.
In 2023, official counts showed 1,081 businesses with payroll in St. Louis County classed as offices of physicians, down 4.0% from 2019. That is one for every 383 households, against one for every 593 across the U.S. Official counts list 1,187 one-person businesses without payroll. Since fiscal 2022, 9 SBA-backed loans worth $9M have gone to businesses classed as offices of physicians in St. Louis County.
Population estimates show St. Louis County declined 1.2% from 2020 to 2025, against +3.1% for the U.S. For primary care and pediatric clinics, St. Louis County has a Groundwork market score of 50 (upper middle): #824 of 1,656 scored counties and #29 of 43 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 medical and dental services by the primary care and pediatric clinics 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 | 6.5 | 5.5 | 7.2 |
| Spending per listing | $2.4M | $2.5M | $1.8M |
| Households per official establishment | 383 | 772 | 593 |
| Official establishment growth, 2019–2023 | −4.0% | −4.7% | −2.2% |
| Population growth, 2020–2025 | −1.2% | +1.9% | +3.1% |
| Spending per household on medical and dental services | $1,541 | $1,389 | $1,288 |
| Median household income | $82,936 | $70,702 | $80,734 |
| Groundwork market score | 50 | 67 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 1,126 → 1,081−4.0% over the period
- Employees, 2023
- 12,502
- Annual payroll, 2023
- $1.6B
- One-person businesses, 2023
- 1,187Businesses with no payroll
- Map listings, September 2026
- 26842 chain locations
- Listings at the U.S. rate for this spending
- 358The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 9
- Amount
- $9M
SBA-backed loans to businesses classed as offices of physicians 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 primary care and pediatric clinics 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 cardPrimary care and pediatrics across Missouri
Every Missouri market ranked →The highest-scoring counties in Missouri for primary care and pediatric clinics, 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 |
|---|---|---|---|---|---|---|
| 1Cass County, MO | 94 | 9 | 2.1 | $7.2M | +7.1% | #5 of 1,656 |
| 2Christian County, MO | 92 | 9 | 2.6 | $5.7M | +8.3% | #7 of 1,656 |
| 3Lincoln County, MO | 92 | 7 | 3.1 | $4.8M | +11.4% | #8 of 1,656 |
| 4Platte County, MO | 87 | 10 | 2.3 | $7.1M | +6.7% | #25 of 1,656 |
| 5Webster County, MO | 85 | 7 | 5.0 | $2.6M | +10.4% | #41 of 1,656 |
| 6St. Charles County, MO | 81 | 64 | 4.0 | $4.2M | +4.9% | #79 of 1,656 |
| 7Johnson County, MO | 81 | 8 | 3.8 | $3.5M | +4.9% | #82 of 1,656 |
| 8Polk County, MO | 81 | 6 | 5.0 | $2.5M | +6.3% | #85 of 1,656 |
| 9Jefferson County, MO | 80 | 31 | 3.5 | $4.1M | +2.7% | #90 of 1,656 |
| 10Pulaski County, MO | 76 | 7 | 4.2 | $3.1M | +0.8% | #134 of 1,656 |
| 29St. Louis County, MO | 50 | 268 | 6.5 | $2.4M | −1.2% | #824 of 1,656 |
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
- Doctors, dentists and clinics36
- Dentists and orthodontists41
- Primary care and pediatrics50
- Urgent care and walk-in clinics56
- Chiropractors42
- Physical therapy44
- Optometrists and eye care46
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many primary care and pediatric clinics are in St. Louis County, MO?
There are 268 primary care and pediatric clinics on map listings in St. Louis County as of September 2026. 42 of them (16%) are chain locations. The listings count primary care, family medicine and pediatric clinics. Official counts show 1,081 businesses with payroll classed as offices of physicians in 2023, down 4.0% from 2019. Official counts also show 1,187 one-person businesses without payroll.
How much do households in St. Louis County, MO spend on medical and dental services?
About $637.9M a year, or $1,541 per household. That is 20% above the U.S. average (an index of 120, where 100 is the U.S. average). Spread across the 268 primary care and pediatric clinics on map listings, it comes to $2.4M per clinic. The spending figure covers all medical and dental services, not only primary care and pediatric clinics. 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 primary care and pediatric clinics?
St. Louis County has 6.5 primary care and pediatric clinics per 10,000 households, 10% below the U.S. rate of 7.2. Spending per clinic is $2.4M, 34% above the U.S. figure of $1.8M. At the national ratio of primary care and pediatric clinics to household spending, St. Louis County would have about 358, against 268 on map listings. There is one business with payroll in the industry for every 383 households, against one for every 593 across the U.S. The official count fell 4.0% from 2019 to 2023, against −2.2% 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 50 for primary care and pediatric clinics (upper middle), #824 of 1,656 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 primary care and pediatric clinics 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 primary care and pediatric clinics · 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.