Real estate · County · Michigan
Mortgage brokers and lenders in St. Clair County, MI
How St. Clair County, MI compares with other counties and the U.S. for mortgage brokers and lenders: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 58 out of 100: Upper middle
Ranked #274 of 887 scored counties
#4 of 24 scored counties in Michigan
- Listings
- 15
- 4 chain locations (27%)
- Official establishments
- 5
- Businesses with payroll, 2023
- Household spending a year
- $927.3M
- On rent and homeowner costs · $13,674 a household
- Housing spending per listing (U.S. = 100)
- 158
- 58% above the U.S.
- Listings per 10k households
- 2.2
- 49% below the U.S.
- Population, 2025
- 160,486
- +0.1% since 2020
See the mortgage brokers and lenders around any address in St. Clair County
The site report maps the mortgage brokers and lenders 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
Household spending on rent and homeowner costs in St. Clair County comes to about $927.3M a year: $13,674 per household, 18% below the U.S. average. Housing spending per office is 58% above the U.S. figure. The spending figure is all rent and homeowner costs, a measure of housing demand, not money mortgage brokers and lenders take in.
There are 15 mortgage brokers and lenders on map listings in St. Clair County as of September 2026. Of those, 4 are chain locations, or 27%, against 21% across the U.S. Per 10,000 households, that is 2.2, 49% below the U.S. rate of 4.3.
The official count of businesses with payroll classed as mortgage brokers and real estate lenders in St. Clair County was 5 in 2023. That is one for every 13,563 households, against one for every 4,897 across the U.S.
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 mortgage brokers and lenders in St. Clair County is 58 (upper middle), #274 of 887 scored counties and #4 of 24 scored counties in Michigan.
How St. Clair County compares
The same measures for Michigan and the whole U.S. Housing spending per listing divides all rent and homeowner costs by the listings counted: a measure of housing demand for each business, not money any of them take in, so it is shown against the U.S. (100) only. Households per establishment divides households by the official count.
| Measure | St. Clair County | Michigan | U.S. |
|---|---|---|---|
| Listings per 10k households | 2.2 | 3.4 | 4.3 |
| Housing spending per listing (U.S. = 100) | 158 | 107 | 100 |
| Households per official establishment | 13,563 | 6,281 | 4,897 |
| Official establishment growth, 2019–2023 | n/a | +31.1% | +9.5% |
| Population growth, 2020–2025 | +0.1% | +0.6% | +3.1% |
| Spending per household on rent and homeowner costs | $13,674 | $13,996 | $16,661 |
| Median household income | $71,270 | $72,875 | $80,734 |
| Groundwork market score | 58 | 38 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 5
- Employees, 2023
- 238
- Annual payroll, 2023
- $15.7M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 154 chain locations
- Listings at the U.S. rate for this spending
- 24The 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 mortgage brokers and real estate lenders 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 mortgage brokers and lenders 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 cardMortgage brokers and lenders across Michigan
Every Michigan market ranked →The highest-scoring counties in Michigan for mortgage brokers and lenders, numbered among those based in Michigan, with St. Clair County marked.
Top counties in Michigan
| Market | Score | Listings | Per 10k households | Housing spending per listing (U.S. = 100) | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Monroe County, MI | 67 | 6 | 1.0 | 381 | +0.7% | #142 of 887 |
| 2Jackson County, MI | 62 | 10 | 1.6 | 215 | −0.4% | #213 of 887 |
| 3Calhoun County, MI | 59 | 6 | 1.1 | 299 | −0.6% | #259 of 887 |
| 4St. Clair County, MI | 58 | 15 | 2.2 | 158 | +0.1% | #274 of 887 |
| 5Bay County, MI | 53 | 9 | 2.0 | 166 | −1.6% | #371 of 887 |
| 6Kalamazoo County, MI | 53 | 29 | 2.7 | 133 | +0.8% | #377 of 887 |
| 7Ingham County, MI | 53 | 34 | 2.9 | 118 | +1.7% | #382 of 887 |
| 8Berrien County, MI | 51 | 16 | 2.5 | 138 | −1.3% | #414 of 887 |
| 9Eaton County, MI | 50 | 10 | 2.2 | 164 | +0.4% | #434 of 887 |
| 10Ottawa County, MI | 49 | 49 | 4.4 | 88 | +3.9% | #464 of 887 |
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
Child care
Clothing and laundry
Home services
Real estate
- Real estate44
- Real estate agents and brokers45
- Property management66
- Mortgage brokers and lenders58
- Home inspectors18
Funeral services
Questions
How many mortgage brokers and lenders are in St. Clair County, MI?
As of September 2026, map listings count 15 mortgage brokers and lenders in St. Clair County. 4 of them (27%) are chain locations. The listings count mortgage brokers and mortgage lenders. Official counts show 5 businesses with payroll classed as mortgage brokers and real estate lenders in 2023.
How much do households in St. Clair County, MI spend on rent and homeowner costs?
About $927.3M a year, or $13,674 per household. That is 18% below the U.S. average (an index of 82, where 100 is the U.S. average). For the 15 mortgage brokers and lenders on map listings, housing spending per office is 58% above the U.S. figure. That figure is all rent and homeowner costs, used as a measure of housing demand; it is not money mortgage brokers and lenders take in. 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 mortgage brokers and lenders?
St. Clair County has 2.2 mortgage brokers and lenders per 10,000 households, 49% below the U.S. rate of 4.3. The index of housing spending per office is 158, where 100 is the U.S. At the U.S. ratio of mortgage brokers and lenders to household spending, St. Clair County would have about 24, against 15 on map listings. There is one business with payroll in the industry for every 13,563 households, against one for every 4,897 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 58 for mortgage brokers and lenders (upper middle), #274 of 887 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 mortgage brokers and lenders 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 mortgage brokers and lenders · 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.