Pets · County · Michigan
Pet businesses in St. Clair County, MI
Competitor counts, household spending and official business counts for pet businesses in St. Clair County, MI, set against other counties and the U.S.
Groundwork market score · out of 100
Score 50 out of 100: Upper middle
Ranked #1,103 of 2,200 scored counties
#23 of 72 scored counties in Michigan
- Listings
- 81
- 6 chain locations (7%)
- Official establishments
- 30
- +20.0% since 2019
- Household spending a year
- $54.9M
- On pets · $809 a household
- Spending per listing
- $677K
- 23% below the U.S.
- Listings per 10k households
- 11.9
- 14% above the U.S.
- Population, 2025
- 160,486
- +0.1% since 2020
See the pet businesses around any address in St. Clair County
The site report maps the pet businesses 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
Households in St. Clair County spend about $54.9M a year on pets, or $809 per household, 11% below the U.S. average. Spread across 81 pet businesses, that is $677K per business, 23% below the U.S. figure of $878K.
There are 81 pet businesses on map listings in St. Clair County as of September 2026. 6 of them (7%) are chain locations, against 17% across the U.S. That comes to 11.9 for every 10,000 households, 14% above the U.S. rate of 10.4.
In 2023, official counts showed 30 businesses with payroll in St. Clair County classed as pet care, veterinarians and pet stores, up 20.0% from 2019. That is one for every 2,261 households, against one for every 1,852 across the U.S. Official counts list 72 one-person businesses without payroll. Since fiscal 2022, 1 SBA-backed loan worth $333K has gone to businesses classed as pet care, veterinarians and pet stores in St. Clair County.
Population estimates show St. Clair County grew 0.1% from 2020 to 2025, slower than the U.S. (+3.1%). The Groundwork market score for pet businesses in St. Clair County is 50 (upper middle), #1,103 of 2,200 scored counties and #23 of 72 scored counties in Michigan.
How St. Clair County compares
The same measures for Michigan and the whole U.S. Spending per listing divides a year of household spending on all pets by the pet businesses 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 | Michigan | U.S. |
|---|---|---|---|
| Listings per 10k households | 11.9 | 10.4 | 10.4 |
| Spending per listing | $677K | $814K | $878K |
| Households per official establishment | 2,261 | 2,045 | 1,852 |
| Official establishment growth, 2019–2023 | +20.0% | +13.8% | +11.4% |
| Population growth, 2020–2025 | +0.1% | +0.6% | +3.1% |
| Spending per household on pets | $809 | $843 | $909 |
| Median household income | $71,270 | $72,875 | $80,734 |
| Groundwork market score | 50 | 50 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 25 → 30+20.0% over the period
- Employees, 2023
- 376
- Annual payroll, 2023
- $23.6M
- One-person businesses, 2023
- 72Businesses with no payroll
- Map listings, September 2026
- 816 chain locations
- Listings at the U.S. rate for this spending
- 63The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 1
- Amount
- $333K
SBA-backed loans to businesses classed as pet care, veterinarians and pet stores 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
- 160,486+0.1% since 2020
- Households
- 67,816
- Median age
- 44.6
- Homes lived in by their owners
- 81%
- Vehicles per household
- 1.8
- Land area
- 722 sq. mi.
- People per square mile
- 222
- Median household income
- $71,270+25.1% vs. 2015–2019, before inflation
- Average household income
- $90,621
- Median home value
- $224,600
- Jobs located here
- 41,623
- Daytime population
- 129,372Residents 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 pet businesses 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 cardPet businesses across Michigan
Every Michigan market ranked →The highest-scoring counties in Michigan for pet businesses, numbered among those based in Michigan, with St. Clair County marked.
Top counties in Michigan
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Ottawa County, MI | 72 | 105 | 9.4 | $999K | +3.9% | #222 of 2,200 |
| 2Leelanau County, MI | 72 | 10 | 10.4 | $970K | +3.0% | #225 of 2,200 |
| 3Manistee County, MI | 70 | 8 | 7.6 | $1M | +2.3% | #275 of 2,200 |
| 4Macomb County, MI | 70 | 313 | 8.7 | $987K | +0.7% | #277 of 2,200 |
| 5Wayne County, MI | 68 | 388 | 5.5 | $1.4M | −1.1% | #337 of 2,200 |
| 6Clinton County, MI | 68 | 33 | 10.4 | $895K | +1.6% | #352 of 2,200 |
| 7Branch County, MI | 67 | 15 | 8.9 | $835K | +2.5% | #396 of 2,200 |
| 8Monroe County, MI | 66 | 62 | 9.8 | $876K | +0.7% | #433 of 2,200 |
| 9Oakland County, MI | 65 | 565 | 10.7 | $960K | +1.2% | #466 of 2,200 |
| 10Kent County, MI | 63 | 267 | 10.4 | $865K | +2.5% | #545 of 2,200 |
| 23St. Clair County, MI | 50 | 81 | 11.9 | $677K | +0.1% | #1,103 of 2,200 |
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 businesses50
- Veterinarians57
- Pet grooming and boarding50
- Pet stores57
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many pet businesses are in St. Clair County, MI?
As of September 2026, map listings count 81 pet businesses in St. Clair County. 6 of them (7%) are chain locations. The listings count vets, groomers, boarding and pet stores. Official counts show 30 businesses with payroll classed as pet care, veterinarians and pet stores in 2023, up 20.0% from 2019. Official counts also show 72 one-person businesses without payroll.
How much do households in St. Clair County, MI spend on pets?
About $54.9M a year, or $809 per household. That is 11% below the U.S. average (an index of 89, where 100 is the U.S. average). Spread across the 81 pet businesses on map listings, it comes to $677K per business. It is estimated from the incomes of the 67,816 households in St. Clair County and national spending patterns by income.
How does St. Clair County, MI compare with the U.S. for pet businesses?
St. Clair County has 11.9 pet businesses per 10,000 households, 14% above the U.S. rate of 10.4. Spending per business is $677K, 23% below the U.S. figure of $878K. At the U.S. ratio of pet businesses to household spending, St. Clair County would have about 63, against 81 on map listings. There is one business with payroll in the industry for every 2,261 households, against one for every 1,852 across the U.S. The official count rose 20.0% from 2019 to 2023, against +11.4% for the U.S.
How fast is St. Clair County, MI growing?
Population estimates put St. Clair County at 160,486 people in 2025, up 0.1% since 2020, slower than the U.S. (+3.1%). It has 67,816 households. Median household income in St. Clair County is $71,270, 12% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 25.1%, 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 50 for pet businesses (upper middle), #1,103 of 2,200 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 pet businesses 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 pet businesses · 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.