Grundy County, Illinois: commercial real estate data.
Grundy County, Illinois had an estimated 53,835 residents on July 1, 2024, up 2.4 percent since the 2020 census base of 52,554, across 418 square miles. 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 since FY2020.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Grundy County
How many people live in Grundy County
- Population, American Community Survey 2020-202453,219
- 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-equivalents, Puerto Rico included973rd of 3,222
Grundy County is the 26th largest of 102 Illinois counties by population. A median home costs 2.9 times median household income, which is affordable 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's population growing?
- Population, July 1, 202453,835
- Census 2020 base population52,554
- Population change since the 2020 census base2.44 percent
- Population change, 2023 to 2024248
- 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 of 3,144
The county has grown 2.44 percent since the 2020 census base. The population grew in 2024 from both sources: births exceeded deaths and more people moved in than left.
US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
Grundy County
Where are people moving to Grundy County from?
- Tax returns filed by households arriving1,704
- People arriving, from those returns3,138
- Tax returns filed by households leaving1,643
- Net household movement61
- Adjusted gross income arriving$110.9 m
- Net adjusted gross income movement$774,000
- Average income of an arriving household$65,103
- Average income of a leaving household$67,049
- Largest single originWill County (798 households)
- Largest single destinationWill County (498 households)
| Origin | Households | People | Adjusted gross income |
|---|---|---|---|
| Will County | 798 | 1,504 | $53.7 m |
| Cook County | 189 | 360 | $13.8 m |
| Kendall County | 100 | 180 | $6.4 m |
| LaSalle County | 97 | 163 | $5.4 m |
| DuPage County | 73 | 124 | $5.0 m |
| Kankakee County | 37 | 66 | $2.1 m |
| Kane County | 32 | 67 | $2.3 m |
| Livingston County | 32 | 63 | $1.5 m |
Households arriving report $1,946 less average income than households leaving, which drains spending power even where headcount holds up. The largest single source of arrivals is Will County, 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 is the Grundy County economy?
- 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 the Illinois areas BEA publishes19th of 102
- Rank by GDP among the US county areas BEA publishes647th of 3,127
- 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
Employment by industry in Grundy County
- Covered employment, annual average22,349
- Establishments reporting1,204
- Average annual pay$69,868
- Average weekly wage$1,344
- Retail trade, employment4,490
- Retail trade, average annual pay$46,812
- Health care and social assistance, employment2,505
- Health care and social assistance, average annual pay$58,899
- Transportation and warehousing, employment2,134
- Transportation and warehousing, average annual pay$70,904
- Construction, employment2,087
- Construction, average annual pay$110,934
- Accommodation and food services, employment1,632
- Manufacturing, employment1,190
| Sector | Employment | Establishments | Average annual pay |
|---|---|---|---|
| Retail trade | 4,490 | 140 | $46,812 |
| Health care and social assistance | 2,505 | 116 | $58,899 |
| Transportation and warehousing | 2,134 | 68 | $70,904 |
| Construction | 2,087 | 153 | $110,934 |
| Accommodation and food services | 1,632 | 125 | $20,709 |
| Manufacturing | 1,190 | 47 | $99,484 |
| Administrative and support and waste management services | 698 | 61 | $70,279 |
| Other services, except public administration | 584 | 115 | $48,693 |
Retail trade is the largest private sector at 4,490 jobs, 20.1 percent of covered employment.
US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
Grundy County
How many businesses are 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. County Business Patterns counts private establishments with paid employees in March 2023, while the Quarterly Census of Employment and Wages above counts every unemployment-insured employer, public ones included, as a 2024 annual average, so the two establishment and employment counts differ.
US Census Bureau, County Business Patterns, 2023.
Grundy County
Building permits in Grundy County
- Housing units authorized by permit, 202488
- Declared construction value permitted$26.7 m
- Single family units authorized54
- Multifamily units authorized34
- Multifamily share of units38.6 percent
- Average declared value per unit$303,029
- Units authorized per 1,000 households4.3
Single-family homes are 61.4 percent of units authorized, so the pipeline is predominantly single-family.
US Census Bureau, Building Permits Survey, 2024 annual.
Grundy County
SBA loans in Grundy County (7(a) and 504)
- 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$68,750
- 90th percentile approval$2,069,000
- 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$331,500
- Distinct CDCs active4
- 504 jobs per approval9.3
- 504 jobs per million dollars approved15.7
- Most active CDCSmall Business Growth Corporation (31)
- Combined SBA approval dollars, 7(a) FY2020 to FY2026 and 504 FY2010 to FY2026$58.1 m
The average approval of $892,381 sits well above the median of $400,000, pulled up by a few larger deals, so the median is the better guide to what a typical borrower here 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
SBA loan default and charge-off rates in 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
Only 6 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
Compare against the national and state SBA charge-off rates, computed the same way over resolved loans only.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Grundy County
SBA lending by place in Grundy County
- Borrower cities with recorded lending8
- Morris, approvals24
- Minooka, approvals6
- Braidwood, approvals1
- Coal City, approvals1
- Godley, approvals1
- Braceville, approvals1
| Borrower city | Approvals | Gross approval dollars |
|---|---|---|
| Morris | 24 | $23,186,500 |
| Minooka | 6 | $4,964,000 |
| Braidwood | 1 | $2,138,000 |
| Coal City | 1 | $890,000 |
| Godley | 1 | $350,000 |
| Braceville | 1 | $305,000 |
| South Wilmington | 1 | $229,200 |
| 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 large 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
Flood risk in Grundy County
- Participation of the county's own NFIP community Grundy County, unincorporated areasParticipating, community 170256
- Communities in the county in the NFIP Community Status Book15
- Of those, participating in the NFIP15
- NFIP participation rate100.0 percent
- Communities carrying a CRS class0
- Radon levels in Grundy County, EPA zone predicted average indoor radon screening level greater than 4 pCi/LZone 1
The county's own community in the status book, unincorporated Grundy County (community 170256), participates in the National Flood Insurance Program and carries no Community Rating System class, so no CRS premium discount applies there. The EPA places Grundy County in radon zone 1, a predicted average indoor radon screening level greater than 4 pCi/L. The zone is a screening prediction for the county and does not substitute for a test at an address. 100.0 percent of the county's listed communities participate in the National Flood Insurance Program, per Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26. US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.
Coverage
What this page does not hold.
Traffic counts, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
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.
- Population, American Community Survey 2020-202453,219
- 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?
The Census Bureau estimates 53,835 residents on July 1, 2024 (US Census Bureau, Population Estimates Program, Vintage 2024). The American Community Survey 2020-2024 five-year estimate is 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's population growing?
The population has grown 2.44 percent since the 2020 census base of 52,554, to 53,835 on July 1, 2024. 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 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 employment by industry in Grundy County?
Retail trade is the largest private sector at 4,490 jobs, 20.1 percent of covered employment. Covered employment averages 22,349 jobs at an average annual pay of $69,868, or $1,344 a week. 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 totaling $32.1 m since FY2020, across 21 lenders, with a median approval of $400,000, plus 44 504 approvals worth $26.0 m since FY2010. These are approvals recorded in the release, not loans disbursed.
How many building permits were issued in Grundy County?
88 housing units were authorized 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 Will County, with 798 households. Arriving households report an average income of $65,103 against $67,049 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?
No. Nothing on this page presents parcel level zoning, and where a statutory framework applies it is marked as the statewide frame, to be confirmed locally.
Grundy County
Cities and places in Grundy.
17 Census places lie wholly or partly in Grundy County. All 17 carry enough published place level data for a page of their own and are linked.
| Place | Type | Population | SBA 7(a) approvals, projects in this county | Lies in |
|---|---|---|---|---|
| Morris | city | 14,898 | 24 | Wholly in this county |
| Channahon | village | 13,927 | None recorded | 49.2 percent here, 50.8 percent Will County |
| Minooka | village | 12,891 | 6 | 66.8 percent here, 22.8 percent Kendall County, 10.5 percent Will County |
| Braidwood | city | 6,062 | 1 | 10.6 percent here, 89.4 percent Will County |
| Coal City | village | 5,317 | 1 | Wholly in this county |
| Dwight | village | 3,872 | None recorded | 15.1 percent here, 84.9 percent Livingston County |
| Diamond | village | 2,984 | None recorded | 63.3 percent here, 36.7 percent Will County |
| Seneca | village | 2,450 | None recorded | 48.3 percent here, 51.7 percent LaSalle County |
| Gardner | village | 1,410 | None recorded | Wholly in this county |
| Mazon | village | 1,401 | None recorded | Wholly in this county |
| Braceville | village | 860 | 1 | 45.0 percent here, 55.0 percent Will County |
| Godley | village | 602 | 1 | 46.9 percent here, 53.1 percent Will County |
| South Wilmington | village | 600 | 1 | Wholly in this county |
| Carbon Hill | village | 441 | None recorded | Wholly in this county |
| Verona | village | 272 | 1 | Wholly in this county |
| Kinsman | village | 84 | None recorded | Wholly in this county |
| East Brooklyn | village | 50 | None recorded | Wholly in this county |
Nearby