Groundwork

Real estate · County · Illinois

Mortgage brokers and lenders in St. Clair County, IL

Competitor counts, household spending and official business counts for mortgage brokers and lenders in St. Clair County, IL, set against other counties and the U.S.

Groundwork market score · out of 100

Score 38 out of 100: Lower middle

Ranked #659 of 887 scored counties
#17 of 22 scored counties in Illinois

Listings
37
12 chain locations (32%)
Official establishments
13
Businesses with payroll, 2023
Household spending a year
$1.4B
On rent and homeowner costs · $14,016 a household
Housing spending per listing (U.S. = 100)
98
2% below the U.S.
Listings per 10k households
3.7
14% below the U.S.
Population, 2025
250,708
−2.5% 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.

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Survey 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 $1.4B a year: $14,016 per household, 16% below the U.S. average. Housing spending per office is 2% below 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.

St. Clair County has 37 mortgage brokers and lenders on map listings as of September 2026. Chain locations make up 32% of them, against 21% across the U.S. That comes to 3.7 for every 10,000 households, 14% below the U.S. rate of 4.3.

In 2023, official counts showed 13 businesses with payroll in St. Clair County classed as mortgage brokers and real estate lenders. That is one for every 7,757 households, against one for every 4,897 across the U.S.

Population estimates show St. Clair County declined 2.5% from 2020 to 2025, against +3.1% for the U.S. St. Clair County scores 38 (lower middle) on the Groundwork market score for mortgage brokers and lenders, ranking #659 of 887 scored counties and #17 of 22 scored counties in Illinois.

How St. Clair County compares

The same measures for Illinois 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.

Mortgage brokers and lenders in St. Clair County, IL compared with Illinois and the U.S.
MeasureSt. Clair CountyIllinoisU.S.
Listings per 10k households3.74.04.3
Housing spending per listing (U.S. = 100)9896100
Households per official establishment7,7577,2894,897
Official establishment growth, 2019–2023n/a+2.7%+9.5%
Population growth, 2020–2025−2.5%−0.6%+3.1%
Spending per household on rent and homeowner costs$14,016$14,866$16,661
Median household income$73,854$83,390$80,734
Groundwork market score3838

Official counts and lending

Businesses

Official establishments, 2019 to 2023
12 → 13
Employees, 2023
48
Annual payroll, 2023
$4.5M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
3712 chain locations
Listings at the U.S. rate for this spending
36The 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
250,708−2.5% since 2020
Households
100,846
Median age
40.3
Homes lived in by their owners
68%
Vehicles per household
1.8
Land area
658 sq. mi.
People per square mile
386
Median household income
$73,854+33.8% vs. 2015–2019, before inflation
Average household income
$96,153
Median home value
$180,300
Jobs located here
90,959
Daytime population
229,240Residents 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.

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Mortgage brokers and lenders across Illinois

Every Illinois market ranked →

The highest-scoring counties in Illinois for mortgage brokers and lenders, numbered among those based in Illinois, with St. Clair County marked.

Top counties in Illinois

Counties in Illinois ranked for mortgage brokers and lenders by Groundwork market score
MarketScoreListingsPer 10k householdsHousing spending per listing (U.S. = 100)Population growthU.S. rank
1Kendall County, IL8361.3318+9.9%#13 of 887
2Tazewell County, IL6650.9391−0.9%#156 of 887
3Sangamon County, IL66121.4256−1.0%#158 of 887
4Champaign County, IL63172.0173+1.8%#200 of 887
5Winnebago County, IL61171.5233−0.4%#227 of 887
6Will County, IL60883.6116+2.2%#254 of 887
7McLean County, IL59182.6144+0.1%#264 of 887
8Williamson County, IL5562.1165+0.2%#326 of 887
9LaSalle County, IL5251.1319−1.5%#395 of 887
10Kankakee County, IL5161.5243−1.7%#409 of 887
17St. Clair County, IL38373.798−2.5%#659 of 887

Other business types in St. Clair County

Each with its Groundwork market score here, out of 100, where it has one.

Questions

How many mortgage brokers and lenders are in St. Clair County, IL?

Map listings as of September 2026 show 37 mortgage brokers and lenders in St. Clair County. 12 of them (32%) are chain locations. The listings count mortgage brokers and mortgage lenders. Official counts show 13 businesses with payroll classed as mortgage brokers and real estate lenders in 2023.

How much do households in St. Clair County, IL spend on rent and homeowner costs?

About $1.4B a year, or $14,016 per household. That is 16% below the U.S. average (an index of 84, where 100 is the U.S. average). For the 37 mortgage brokers and lenders on map listings, housing spending per office is 2% below 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 100,846 households in St. Clair County and national spending patterns by income.

How does St. Clair County, IL compare with the U.S. for mortgage brokers and lenders?

St. Clair County has 3.7 mortgage brokers and lenders per 10,000 households, 14% below the U.S. rate of 4.3. The index of housing spending per office is 98, 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 36, against 37 on map listings. There is one business with payroll in the industry for every 7,757 households, against one for every 4,897 across the U.S.

How fast is St. Clair County, IL growing?

Population estimates put St. Clair County at 250,708 people in 2025, down 2.5% since 2020, against +3.1% for the U.S. It has 100,846 households. Median household income in St. Clair County is $73,854, 9% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 33.8%, 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 38 for mortgage brokers and lenders (lower middle), #659 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.