Pets · County · Illinois
Veterinarians in St. Clair County, IL
The veterinarians in St. Clair County, IL, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 69 out of 100: Upper middle
Ranked #297 of 1,485 scored counties
#7 of 52 scored counties in Illinois
- Listings
- 21
- 1 chain location (5%)
- Official establishments
- 18
- Businesses with payroll, 2023
- Household spending a year
- $85.6M
- On pets · $849 a household
- Spending per listing
- $4.1M
- 50% above the U.S.
- Listings per 10k households
- 2.1
- 36% below the U.S.
- Population, 2025
- 250,708
- −2.5% since 2020
See the veterinarians around any address in St. Clair County
The site report maps the veterinarians 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. Clair 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
At $849 per household (7% below the U.S. average), households in St. Clair County spend about $85.6M a year on pets. That is about $4.1M of household spending for each clinic on map listings, 50% above the U.S. figure of $2.7M. The spending figure covers all pets, not only veterinarians.
There are 21 veterinarians on map listings in St. Clair County as of September 2026. One of them (5%) is a chain location, against 19% across the U.S. Per 10,000 households, that is 2.1, 36% below the U.S. rate of 3.3.
The official count of businesses with payroll classed as veterinary services in St. Clair County was 18 in 2023. That is one for every 5,603 households, against one for every 3,767 across the U.S. Since fiscal 2022, 1 SBA-backed loan worth $452K has gone to businesses classed as veterinary services in St. Clair County.
Between 2020 and 2025, the population of St. Clair County declined 2.5%, against +3.1% for the U.S. St. Clair County scores 69 (upper middle) on the Groundwork market score for veterinarians, ranking #297 of 1,485 scored counties and #7 of 52 scored counties in Illinois. That puts it in the top quarter of counties.
How St. Clair County compares
The same measures for Illinois and the whole U.S. Spending per listing divides a year of household spending on all pets by the veterinarians 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. Clair County | Illinois | U.S. |
|---|---|---|---|
| Listings per 10k households | 2.1 | 3.0 | 3.3 |
| Spending per listing | $4.1M | $3.1M | $2.7M |
| Households per official establishment | 5,603 | 4,346 | 3,767 |
| Official establishment growth, 2019–2023 | n/a | +5.4% | +6.8% |
| Population growth, 2020–2025 | −2.5% | −0.6% | +3.1% |
| Spending per household on pets | $849 | $925 | $909 |
| Median household income | $73,854 | $83,390 | $80,734 |
| Groundwork market score | 69 | 63 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 18 → 18
- Employees, 2023
- 243
- Annual payroll, 2023
- $10.9M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 211 chain location
- Listings at the U.S. rate for this spending
- 31The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 1
- Amount
- $452K
SBA-backed loans to businesses classed as veterinary services in St. Clair 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. Clair County
- Population, 2025 estimate
- 250,708−2.5% since 2020
- Households
- 100,846
- Median age
- 40.3
- Homes lived in by their owners
- 68%
- Vehicles per household
- 1.8
- Land area
- 658 sq. mi.
- People per square mile
- 386
- Median household income
- $73,854+33.8% vs. 2015–2019, before inflation
- Average household income
- $96,153
- Median home value
- $180,300
- Jobs located here
- 90,959
- Daytime population
- 229,240Residents who don’t work, plus everyone whose job is here
Looking at a specific site in St. Clair 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 veterinarians on map listings by name and distance.
Or open the report at the center of St. Clair County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardVeterinarians across Illinois
Every Illinois market ranked →The highest-scoring counties in Illinois for veterinarians, numbered among those based in Illinois, with St. Clair County marked.
Top counties in Illinois
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Kendall County, IL | 77 | 15 | 3.3 | $3.2M | +9.9% | #135 of 1,485 |
| 2Cook County, IL | 76 | 458 | 2.2 | $4.3M | −1.3% | #141 of 1,485 |
| 3Will County, IL | 75 | 71 | 2.9 | $3.7M | +2.2% | #176 of 1,485 |
| 4DuPage County, IL | 74 | 109 | 3.1 | $3.6M | +0.3% | #195 of 1,485 |
| 5DeKalb County, IL | 72 | 9 | 2.3 | $3.7M | +1.5% | #230 of 1,485 |
| 6Kane County, IL | 71 | 60 | 3.2 | $3.2M | +1.8% | #258 of 1,485 |
| 7St. Clair County, IL | 69 | 21 | 2.1 | $4.1M | −2.5% | #297 of 1,485 |
| 8McLean County, IL | 69 | 19 | 2.7 | $3.3M | +0.1% | #301 of 1,485 |
| 9Lake County, IL | 67 | 95 | 3.7 | $3M | +0.8% | #334 of 1,485 |
| 10Winnebago County, IL | 59 | 32 | 2.8 | $2.8M | −0.4% | #511 of 1,485 |
Other business types in St. Clair 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
Pets
- Pet businesses65
- Veterinarians69
- Pet grooming and boarding60
- Pet stores65
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many veterinarians are in St. Clair County, IL?
As of September 2026, map listings count 21 veterinarians in St. Clair County. One of them (5%) is a chain location. The listings count veterinary clinics and animal hospitals. Official counts show 18 businesses with payroll classed as veterinary services in 2023.
How much do households in St. Clair County, IL spend on pets?
About $85.6M a year, or $849 per household. That is 7% below the U.S. average (an index of 93, where 100 is the U.S. average). Spread across the 21 veterinarians on map listings, it comes to $4.1M per clinic. That spending covers all pets, which veterinarians share with other businesses in the trade. It is estimated from the incomes of the 100,846 households in St. Clair County and national spending patterns by income.
How does St. Clair County, IL compare with the U.S. for veterinarians?
St. Clair County has 2.1 veterinarians per 10,000 households, 36% below the U.S. rate of 3.3. Spending per clinic is $4.1M, 50% above the U.S. figure of $2.7M. At the U.S. ratio of veterinarians to household spending, St. Clair County would have about 31, against 21 on map listings. There is one business with payroll in the industry for every 5,603 households, against one for every 3,767 across the U.S.
How fast is St. Clair County, IL growing?
Population estimates put St. Clair County at 250,708 people in 2025, down 2.5% since 2020, against +3.1% for the U.S. It has 100,846 households. Median household income in St. Clair County is $73,854, 9% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 33.8%, 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. Clair County scores 69 for veterinarians (upper middle), #297 of 1,485 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in St. Clair County. It maps the veterinarians 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 veterinarians · All 56 business types in St. Clair County
Screening a site or an acquisition in St. Clair 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. Clair 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.