Pets · County · Michigan
Pet stores in St. Clair County, MI
How St. Clair County, MI compares with other counties and the U.S. for pet stores: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 57 out of 100: Upper middle
Ranked #367 of 974 scored counties
#8 of 34 scored counties in Michigan
- Listings
- 13
- 2 chain locations (15%)
- Official establishments
- 3
- Businesses with payroll, 2023
- Household spending a year
- $54.9M
- On pets · $809 a household
- Spending per listing
- $4.2M
- 7% below the U.S.
- Listings per 10k households
- 1.9
- 5% below the U.S.
- Population, 2025
- 160,486
- +0.1% since 2020
See the pet stores around any address in St. Clair County
The site report maps the pet stores 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
As of September 2026, map listings count 13 pet stores in St. Clair County. Chain locations make up 15% of them, against 38% across the U.S. That is 1.9 per 10,000 households, 5% below the U.S. rate of 2.0.
Households in St. Clair County spend about $54.9M a year on pets, or $809 per household, 11% below the U.S. average. That works out to $4.2M per store, 7% below the U.S. figure of $4.5M. That spending covers all pets, which pet stores share with other businesses in the trade.
In 2023, official counts showed 3 businesses with payroll in St. Clair County classed as pet and pet supplies stores. That is one for every 22,605 households, against one for every 13,024 across the U.S.
Population estimates put the population change in St. Clair County from 2020 to 2025 at +0.1%, slower than the U.S. (+3.1%). St. Clair County scores 57 (upper middle) on the Groundwork market score for pet stores, ranking #367 of 974 scored counties and #8 of 34 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 stores 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 | 1.9 | 1.8 | 2.0 |
| Spending per listing | $4.2M | $4.6M | $4.5M |
| Households per official establishment | 22,605 | 13,960 | 13,024 |
| Official establishment growth, 2019–2023 | n/a | −3.6% | −1.6% |
| 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 | 57 | 46 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 4 → 3
- Employees, 2023
- 37
- Annual payroll, 2023
- $829K
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 132 chain locations
- Listings at the U.S. rate for this spending
- 12The 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 pet and pet supplies 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 stores 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 stores across Michigan
Every Michigan market ranked →The highest-scoring counties in Michigan for pet stores, 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 |
|---|---|---|---|---|---|---|
| 1Muskegon County, MI | 70 | 7 | 1.0 | $7.2M | +1.8% | #162 of 974 |
| 2Clinton County, MI | 70 | 5 | 1.6 | $5.9M | +1.6% | #164 of 974 |
| 3Ottawa County, MI | 70 | 22 | 2.0 | $4.8M | +3.9% | #173 of 974 |
| 4Oakland County, MI | 63 | 102 | 1.9 | $5.3M | +1.2% | #265 of 974 |
| 5Wayne County, MI | 60 | 89 | 1.3 | $6.1M | −1.1% | #309 of 974 |
| 6Eaton County, MI | 60 | 8 | 1.8 | $4.8M | +0.4% | #317 of 974 |
| 7Berrien County, MI | 57 | 11 | 1.7 | $4.6M | −1.3% | #366 of 974 |
| 8St. Clair County, MI | 57 | 13 | 1.9 | $4.2M | +0.1% | #367 of 974 |
| 9Ingham County, MI | 56 | 18 | 1.5 | $5.1M | +1.7% | #377 of 974 |
| 10Kent County, MI | 55 | 50 | 1.9 | $4.6M | +2.5% | #397 of 974 |
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 stores are in St. Clair County, MI?
St. Clair County has 13 pet stores on map listings as of September 2026. 2 of them (15%) are chain locations. The listings count pet stores. Official counts show 3 businesses with payroll classed as pet and pet supplies stores in 2023.
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 13 pet stores on map listings, it comes to $4.2M per store. The spending figure covers all pets, not only pet stores. 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 stores?
St. Clair County has 1.9 pet stores per 10,000 households, 5% below the U.S. rate of 2.0. Spending per store is $4.2M, 7% below the U.S. figure of $4.5M. At the national ratio of pet stores to household spending, St. Clair County would have about 12, against 13 on map listings. There is one business with payroll in the industry for every 22,605 households, against one for every 13,024 across 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 57 for pet stores (upper middle), #367 of 974 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 stores 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 stores · 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.