Pets · County · Illinois
Veterinarians in Mercer County, IL
How Mercer County, IL compares with other counties and the U.S. for veterinarians: competitors, household spending, official counts and growth.
Groundwork market score
Not scored
The score needs at least 5 listings; this market has 3.
- Listings
- 3
- 0 chain locations (0%)
- Official establishments
- 3
- Businesses with payroll, 2023
- Household spending a year
- $5.5M
- On pets · $839 a household
- Spending per listing
- $1.8M
- 33% below the U.S.
- Listings per 10k households
- 4.6
- 39% above the U.S.
- Population, 2025
- 15,229
- −2.6% since 2020
See the veterinarians around any address in Mercer 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 Mercer 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 3 veterinarians in Mercer County. That comes to 4.6 for every 10,000 households, 39% above the U.S. rate of 3.3.
At $839 per household (8% below the U.S. average), households in Mercer County spend about $5.5M a year on pets. Spread across 3 veterinarians, that is $1.8M per clinic, 33% 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 3 businesses with payroll in Mercer County classed as veterinary services. That is one for every 2,188 households, against one for every 3,767 across the U.S.
Population estimates show Mercer County declined 2.6% from 2020 to 2025, against +3.1% for the U.S. With 3 veterinarians on map listings, Mercer County isn’t given a market score: the score needs at least 5, since one listing more or less would swing it.
How Mercer 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 | Mercer County | Illinois | U.S. |
|---|---|---|---|
| Listings per 10k households | 4.6 | 3.0 | 3.3 |
| Spending per listing | $1.8M | $3.1M | $2.7M |
| Households per official establishment | 2,188 | 4,346 | 3,767 |
| Official establishment growth, 2019–2023 | n/a | +5.4% | +6.8% |
| Population growth, 2020–2025 | −2.6% | −0.6% | +3.1% |
| Spending per household on pets | $839 | $925 | $909 |
| Median household income | $74,182 | $83,390 | $80,734 |
| Groundwork market score | Not scored | 63 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 3 → 3
- Employees, 2023
- 19
- Annual payroll, 2023
- $561K
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 30 chain locations
- Listings at the U.S. rate for this spending
- 2The 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 Mercer 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 Mercer County
- Population, 2025 estimate
- 15,229−2.6% since 2020
- Households
- 6,565
- Median age
- 43.9
- Homes lived in by their owners
- 84%
- Vehicles per household
- 2.2
- Land area
- 561 sq. mi.
- People per square mile
- 28
- Median household income
- $74,182+24.1% vs. 2015–2019, before inflation
- Average household income
- $92,846
- Median home value
- $146,700
- Jobs located here
- 3,052
- Daytime population
- 11,354Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Mercer 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 Mercer 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 Mercer 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 |
| Mercer County, IL | Not scored | 3 | 4.6 | $1.8M | −2.6% |
Other business types in Mercer 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 businesses36
- Veterinarians
- Pet grooming and boarding18
- Pet stores
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many veterinarians are in Mercer County, IL?
There are 3 veterinarians on map listings in Mercer County as of September 2026. The listings count veterinary clinics and animal hospitals. Official counts show 3 businesses with payroll classed as veterinary services in 2023.
How much do households in Mercer County, IL spend on pets?
About $5.5M a year, or $839 per household. That is 8% below the U.S. average (an index of 92, where 100 is the U.S. average). Spread across the 3 veterinarians on map listings, it comes to $1.8M per clinic. The spending figure covers all pets, not only veterinarians. It is estimated from the incomes of the 6,565 households in Mercer County and national spending patterns by income.
How does Mercer County, IL compare with the U.S. for veterinarians?
Mercer County has 4.6 veterinarians per 10,000 households, 39% above the U.S. rate of 3.3. Spending per clinic is $1.8M, 33% below the U.S. figure of $2.7M. At the national ratio of veterinarians to household spending, Mercer County would have about 2, against 3 on map listings. There is one business with payroll in the industry for every 2,188 households, against one for every 3,767 across the U.S.
How fast is Mercer County, IL growing?
Population estimates put Mercer County at 15,229 people in 2025, down 2.6% since 2020, against +3.1% for the U.S. It has 6,565 households. The median household income in Mercer County is $74,182 a year, 8% below the U.S. median of $80,734. That rose 24.1% 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. Mercer County has no market score for veterinarians: the score needs at least 5 on map listings, and it has 3.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Mercer 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 Mercer County
Screening a site or an acquisition in Mercer 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 Mercer 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.