Grundy County, Illinois: commercial real estate data.
Grundy County, Illinois has a population of 53,219 across 418 square miles, up 2.4 percent since the 2020 census base. County output reached $6.04 bn in 2024, 1,202 establishments operate here, and the SBA record carries 36 7(a) approvals worth $32.1 m.
126 sourced county values · tier FULL · 12 sections
Grundy County
How many people live in Grundy County
- Population53,219
- Households20,595
- Average household size2.58
- Median household income$92,235
- Median age38.3
- Median gross rent$1,177 per month
- Median owner-occupied home value$271,700
- Home value to household income2.9 times
- Annual rent as a share of median income15.3 percent
- Adults 25 and over with a bachelor degree or higher23.6 percent
- Adults 25 and over with a graduate degree7.5 percent
- Adults 25 and over35,595
- Population under 1812,939
- Share under 1824.3 percent
- Population 65 and over8,031
- Share 65 and over15.1 percent
- Working age population, 18 to 6432,249
- Civilian labor force28,167
- Unemployment rate4.6 percent
- Labor force participation, adults 18 and over69.9 percent
- Rank by population among Illinois counties26th of 102
- Rank by population among US county-equivalents973rd
Grundy County is the 26th largest of 102 Illinois counties by population. A median home costs 2.9 times median household income, which is an affordable ownership market by national standards. Residents under 18 outnumber those 65 and over, at 24.3 percent against 15.1 percent, a household formation profile rather than a retirement one.
US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Grundy County
Is Grundy County growing
- Population change since the 2020 census base2.44 percent
- Census 2020 base population52,554
- Births, 2024535
- Deaths, 2024486
- Natural change, 202449
- Net domestic migration, 202484
- Net international migration, 2024116
- Total net migration, 2024200
- Cumulative net domestic migration, 2021 to 2024970
- Rank by growth among US county-equivalents1021st
The county has grown 2.44 percent since the 2020 census base. Migration contributed more to 2024 change than births over deaths, so demand here follows people arriving rather than families forming.
US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
Grundy County
Where people moving to Grundy County come from
- Tax returns filed by households arriving1,704
- People arriving, from those returns3,138
- Adjusted gross income arriving$110.9 m
- Net adjusted gross income movement$0
- Average income of an arriving household$65,103
- Largest single originGrundy County Non-migrants (20,561 households)
- Largest single destination (20,561 households)
| Origin | Households | People | Adjusted gross income |
|---|---|---|---|
| Grundy County Non-migrants | 20,561 | 43,305 | $1.99 bn |
| Will County | 798 | 1,504 | $53.7 m |
| Other flows - Different State | 260 | 468 | $16.1 m |
| Cook County | 189 | 360 | $13.8 m |
| Other flows - South | 110 | 219 | $7.7 m |
| Kendall County | 100 | 180 | $6.4 m |
| LaSalle County | 97 | 163 | $5.4 m |
| Other flows - Midwest | 88 | 146 | $4.2 m |
The largest single source of arrivals is Grundy County Non-migrants, which is the catchment a retail or multifamily study should look at first.
US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.
Grundy County
What the Grundy County economy runs on
- County GDP, 2024$6.04 bn
- County GDP, 2023$5.77 bn
- GDP change, 2023 to 20244.8 percent
- GDP change over five years35.9 percent
- Rank by GDP among Illinois counties19th
- Rank by GDP among US county-equivalents647th
- GDP per resident$113,561
Output grew 4.8 percent in the latest year and 35.9 percent over five, which is the trend line a lender will read behind any single year figure.
US Bureau of Economic Analysis, Regional, table CAGDP2, CAGDP2, through 2024.
Grundy County
Who employs people in Grundy County
- Covered employment, annual average22,349
- Establishments reporting1,204
- Average annual pay$69,868
- Average weekly wage$1,344
- Sector 44-45, employment4,490
- Sector 44-45, average annual pay$46,812
- Sector 62, employment2,505
- Sector 62, average annual pay$58,899
- Sector 48-49, employment2,134
- Sector 48-49, average annual pay$70,904
- Sector 23, employment2,087
- Sector 23, average annual pay$110,934
- Sector 72, employment1,632
- Sector 31-33, employment1,190
| Sector | Employment | Establishments | Average annual pay |
|---|---|---|---|
| Sector 44-45 | 4,490 | 140 | $46,812 |
| Sector 62 | 2,505 | 116 | $58,899 |
| Sector 48-49 | 2,134 | 68 | $70,904 |
| Sector 23 | 2,087 | 153 | $110,934 |
| Sector 72 | 1,632 | 125 | $20,709 |
| Sector 31-33 | 1,190 | 47 | $99,484 |
| Sector 56 | 698 | 61 | $70,279 |
| Sector 81 | 584 | 115 | $48,693 |
The largest sector is the biggest private employer group at 4,490 jobs, 20.1 percent of covered employment. Average pay per job sits below median household income, so households here typically need more than one earner.
US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
Grundy County
What businesses operate in Grundy County
- Establishments, all industries1,202
- Employment at those establishments17,169
- Annual payroll$1.04 bn
- Establishments per 1,000 residents22.6
These are counts of establishments physically operating in the county, not listings, so they are the supply side a feasibility study measures demand against.
US Census Bureau, County Business Patterns, 2023.
Grundy County
What is being built in Grundy County
- Housing units authorised by permit, 202488
- Declared construction value permitted$26.7 m
- Single family units authorised54
- Multifamily units authorised34
- Multifamily share of units38.6 percent
- Average declared value per unit$303,029
- Units authorised per 1,000 households4.3
Multifamily is 38.6 percent of units authorised, so the pipeline is predominantly for sale product.
US Census Bureau, Building Permits Survey, 2024 annual.
Grundy County
How much SBA lending happens in Grundy County
- 7(a) approvals recorded36
- 7(a) gross approval dollars$32.1 m
- Average 7(a) approval$892,381
- Median 7(a) approval$400,000
- 10th percentile approval$63,000
- 90th percentile approval$2,138,000
- Largest single approval$3,505,000
- Jobs reported supported, 7(a)653
- Jobs per approval18.1
- Distinct 7(a) lenders active21
- Distinct industries receiving approvals29
- Median 7(a) term120 months
- Share of loans on real estate terms, 240 months or longer22.2 percent
- Loans on real estate terms8
- Loans on working capital terms, 120 months or shorter27
- Franchise loans3
- Franchise share of approvals8.3 percent
- Leading industry by approval countRecyclable Material Merchant Wholesalers (6)
- Most active lenderByline Bank (7)
- 504 approvals recorded44
- 504 gross approval dollars$26.0 m
- Average 504 approval$590,409
- Median 504 approval$338,000
- Distinct CDCs active4
- 504 jobs per approval9.3
- 504 jobs per million dollars approved15.7
- Most active CDCSmall Business Growth Corporation (31)
- 7(a) share of SBA approvals45.0 percent
- Combined SBA approval dollars$58.1 m
The average approval of $892,381 sits well above the median of $400,000, so a small number of large deals is pulling the mean up. The median is the better guide to what a typical borrower here actually gets. Only 22.2 percent of approvals run on real estate terms, so SBA credit here is mostly working capital and equipment rather than property acquisition.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30. US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
Grundy County
Do SBA loans in Grundy County get paid back
- Loans with a final outcome recorded6
- Paid in full6
- Charged off0
- Status: Paid in full6
- Status: Cancelled3
- Status: Exempt from disclosure24
- Status: Committed, not yet disbursed3
Too few loans have reached a final outcome to publish a charge off rate. only 6 resolved loans, too few to publish a rate. A rate computed on a handful of loans is noise, so none is shown.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Grundy County
Which parts of Grundy County get the lending
- Places in the county with recorded lending8
- MORRIS, approvals24
- Minooka, approvals6
- COAL CITY, approvals1
- SOUTH WILMINGTON, approvals1
- BRACEVILLE, approvals1
- BRAIDWOOD, approvals1
| Place | Approvals | Gross approval dollars |
|---|---|---|
| MORRIS | 24 | $23,186,500 |
| Minooka | 6 | $4,964,000 |
| COAL CITY | 1 | $890,000 |
| SOUTH WILMINGTON | 1 | $229,200 |
| BRACEVILLE | 1 | $305,000 |
| BRAIDWOOD | 1 | $2,138,000 |
| GODLEY | 1 | $350,000 |
| Verona | 1 | $63,000 |
MORRIS accounts for 24 approvals against 6 in Minooka. County level figures average over that gap, which is why a site decision is made at the submarket rather than the county.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Grundy County
How big is Grundy County
- Land area418 sq mi
- Rank by land area among Illinois counties69th of 102
- Width, east to west18.5 mi
- Height, north to south24.5 mi
- Geographies sharing a boundary5
- Residents per square mile of land127
- Establishments per square mile2.88
US Census Bureau county boundary geometry, TIGER, adjacency computed from shared boundary vertices, TIGER county boundaries. US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year. US Census Bureau, County Business Patterns, 2023.
Grundy County
What hazards affect Grundy County
- EPA radon zone predicted average indoor radon screening level greater than 4 pCi/LZone 1
- Communities in the NFIP Community Status Book15
- Of those, participating in the NFIP15
- NFIP participation rate100.0 percent
- Communities carrying a CRS class0
The EPA places the county in radon zone 1, a predicted average indoor radon screening level greater than 4 pCi/L.
US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001. FEMA OpenFEMA, NFIP Community Status Book, Community Status Book, as retrieved.
Coverage
What this page does not hold.
Every item below could be filled with a plausible figure. None of them is. On a page a lender may read, a number that cannot be traced is worse than an absence, so the absences are named.
- Flood zone record counts are not held. The flood coverage export has not landed, so no count is shown rather than an estimated one.
- Traffic counts resolve in the platform, not in this dataset, so no AADT figure is printed here.
- Zoning is in build. Parcel level zoning is not published on this page.
Feasibility studies
When a Grundy County site needs a document a lender will accept.
The same data layer behind this page is the one the studies are written from. A study for a Grundy County site starts with the figures you are reading, carrying the same source and period into the credit file.
- Population53,219
- Households20,595
- Average household size2.58
- Median household income$92,235
- Median age38.3
Common questions
Grundy County questions, answered from the record.
How many people live in Grundy County, Illinois?
53,219, in 20,595 households, ranking 26th of 102 Illinois counties. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Is Grundy County growing?
The population has grown 2.44 percent since the 2020 census base. In 2024 there were 535 births against 486 deaths, with net migration of 200. Source: US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
What is the median household income in Grundy County?
$92,235. The median owner-occupied home is valued at $271,700, which is 2.9 times income, and median gross rent is $1,177 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
How many businesses are there in Grundy County?
1,202 establishments, employing 17,169 people with an annual payroll of $1.04 bn. These are establishments physically operating in the county, not listings. Source: US Census Bureau, County Business Patterns, 2023.
What is the average wage in Grundy County?
Average annual pay is $69,868, or $1,344 a week, across 22,349 covered jobs. Source: US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
How much SBA lending happens in Grundy County?
36 7(a) approvals totalling $32.1 m since FY2020, across 21 lenders, with a median approval of $400,000, plus 44 504 approvals worth $26.0 m. These are approvals recorded in the release, not loans disbursed.
What is being built in Grundy County?
88 housing units were authorised by permit in 2024, with a declared construction value of $26.7 m. Multifamily was 38.6 percent of units. Source: US Census Bureau, Building Permits Survey, 2024 annual.
What is the radon zone for Grundy County?
Zone 1, a predicted average indoor radon screening level greater than 4 pCi/L. Source: US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.
Where do people moving to Grundy County come from?
The largest single origin is Grundy County Non-migrants, with 20,561 households. Arriving households report an average income of $65,103 against null for those leaving. Source: US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.
Are traffic counts available for Grundy County on this page?
No. Annual average daily traffic resolves in the platform rather than in this dataset, so no AADT figure is printed here. It is a gap we know about rather than a figure we estimated.
Is zoning published for Grundy County?
Not yet. The zoning layer is in build. Nothing on this page presents parcel level zoning, and where a statutory framework applies it is marked as the statewide frame with confirm locally attached.