Pets · County · Illinois
Veterinarians in Williamson County, IL
How Williamson County, IL compares with other counties and the U.S. for veterinarians: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 40 out of 100: Lower middle
Ranked #975 of 1,485 scored counties
#29 of 52 scored counties in Illinois
- Listings
- 11
- 2 chain locations (18%)
- Official establishments
- 9
- Businesses with payroll, 2023
- Household spending a year
- $22.7M
- On pets · $782 a household
- Spending per listing
- $2.1M
- 24% below the U.S.
- Listings per 10k households
- 3.8
- 15% above the U.S.
- Population, 2025
- 67,225
- +0.2% since 2020
See the veterinarians around any address in Williamson 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 Williamson 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
As of September 2026, map listings count 11 veterinarians in Williamson County. 2 of them (18%) are chain locations, against 19% across the U.S. That is 3.8 per 10,000 households, 15% above the U.S. rate of 3.3.
At $782 per household (14% below the U.S. average), households in Williamson County spend about $22.7M a year on pets. That is about $2.1M of household spending for each clinic on map listings, 24% below the U.S. figure of $2.7M. That spending covers all pets, which veterinarians share with other businesses in the trade.
In 2023, official counts showed 9 businesses with payroll in Williamson County classed as veterinary services. That is one for every 3,220 households, against one for every 3,767 across the U.S.
Population estimates put the population change in Williamson County from 2020 to 2025 at +0.2%, slower than the U.S. (+3.1%). Williamson County scores 40 (lower middle) on the Groundwork market score for veterinarians, ranking #975 of 1,485 scored counties and #29 of 52 scored counties in Illinois.
How Williamson 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 | Williamson County | Illinois | U.S. |
|---|---|---|---|
| Listings per 10k households | 3.8 | 3.0 | 3.3 |
| Spending per listing | $2.1M | $3.1M | $2.7M |
| Households per official establishment | 3,220 | 4,346 | 3,767 |
| Official establishment growth, 2019–2023 | n/a | +5.4% | +6.8% |
| Population growth, 2020–2025 | +0.2% | −0.6% | +3.1% |
| Spending per household on pets | $782 | $925 | $909 |
| Median household income | $65,604 | $83,390 | $80,734 |
| Groundwork market score | 40 | 63 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 9 → 9
- Employees, 2023
- 127
- Annual payroll, 2023
- $5.1M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 112 chain locations
- Listings at the U.S. rate for this spending
- 8The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 0
- Amount
- $0
SBA-backed loans to businesses classed as veterinary services in Williamson 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 Williamson County
- Population, 2025 estimate
- 67,225+0.2% since 2020
- Households
- 28,983
- Median age
- 42.8
- Homes lived in by their owners
- 71%
- Vehicles per household
- 1.8
- Land area
- 420 sq. mi.
- People per square mile
- 159
- Median household income
- $65,604+29.3% vs. 2015–2019, before inflation
- Average household income
- $85,846
- Median home value
- $156,400
- Jobs located here
- 28,604
- Daytime population
- 68,042Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Williamson 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 Williamson 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 Williamson 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 |
| 29Williamson County, IL | 40 | 11 | 3.8 | $2.1M | +0.2% | #975 of 1,485 |
Other business types in Williamson 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 businesses32
- Veterinarians40
- Pet grooming and boarding41
- Pet stores28
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many veterinarians are in Williamson County, IL?
Williamson County has 11 veterinarians on map listings as of September 2026. 2 of them (18%) are chain locations. The listings count veterinary clinics and animal hospitals. Official counts show 9 businesses with payroll classed as veterinary services in 2023.
How much do households in Williamson County, IL spend on pets?
About $22.7M a year, or $782 per household. That is 14% below the U.S. average (an index of 86, where 100 is the U.S. average). Spread across the 11 veterinarians on map listings, it comes to $2.1M per clinic. The spending figure covers all pets, not only veterinarians. It is estimated from the incomes of the 28,983 households in Williamson County and national spending patterns by income.
How does Williamson County, IL compare with the U.S. for veterinarians?
Williamson County has 3.8 veterinarians per 10,000 households, 15% above the U.S. rate of 3.3. Spending per clinic is $2.1M, 24% below the U.S. figure of $2.7M. At the national ratio of veterinarians to household spending, Williamson County would have about 8, against 11 on map listings. There is one business with payroll in the industry for every 3,220 households, against one for every 3,767 across the U.S.
How fast is Williamson County, IL growing?
Population estimates put Williamson County at 67,225 people in 2025, up 0.2% since 2020, slower than the U.S. (+3.1%). It has 28,983 households. The median household income in Williamson County is $65,604 a year, 19% below the U.S. median of $80,734. That rose 29.3% 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. Williamson County scores 40 for veterinarians (lower middle), #975 of 1,485 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Williamson 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 Williamson County
Screening a site or an acquisition in Williamson 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 Williamson 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.