Johnson County, Illinois: commercial real estate data.
Johnson County, Illinois had an estimated 13,320 residents on July 1, 2024, up 0.1 percent since the 2020 census base of 13,307, across 344 square miles. County output reached $328.9 m in 2024, 175 establishments operate here, and the SBA record carries 4 7(a) approvals worth $480,000 since FY2020.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Johnson County
How many people live in Johnson County
- Population, American Community Survey 2020-202413,376
- Households4,101
- Average household size3.26
- Median household income$62,528
- Median age41.4
- Median gross rent$781 per month
- Median owner-occupied home value$160,500
- Home value to household income2.6 times
- Annual rent as a share of median income15.0 percent
- Adults 25 and over with a bachelor degree or higher19.6 percent
- Adults 25 and over with a graduate degree7.6 percent
- Adults 25 and over9,495
- Population under 182,483
- Share under 1818.6 percent
- Population 65 and over2,630
- Share 65 and over19.7 percent
- Working age population, 18 to 648,263
- Civilian labor force4,684
- Unemployment rate3.5 percent
- Labor force participation, adults 18 and over43.0 percent
- Rank by population among Illinois counties79th of 102
- Rank by population among US county-equivalents, Puerto Rico included2264th of 3,222
Johnson County is the 79th largest of 102 Illinois counties by population. A median home costs 2.6 times median household income, which is affordable by national standards. Residents 65 and over outnumber those under 18, at 19.7 percent against 18.6 percent, which points demand at health care, services and single story product rather than schools.
US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Johnson County
Is Johnson County's population growing?
- Population, July 1, 202413,320
- Census 2020 base population13,307
- Population change since the 2020 census base0.10 percent
- Population change, 2023 to 2024-35
- Births, 202494
- Deaths, 2024170
- Natural change, 2024-76
- Net domestic migration, 202424
- Net international migration, 202417
- Total net migration, 202441
- Cumulative net domestic migration, 2021 to 2024219
- Rank by growth among US county-equivalents1789th of 3,144
The county has grown 0.10 percent since the 2020 census base. Deaths exceeded births in 2024 by more than net migration added, so the population fell even though more people moved in than left.
US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
Johnson County
Where are people moving to Johnson County from?
- Tax returns filed by households arriving292
- People arriving, from those returns538
- Tax returns filed by households leaving370
- Net household movement-78
- Adjusted gross income arriving$14.0 m
- Net adjusted gross income movement$883,000
- Average income of an arriving household$48,086
- Average income of a leaving household$35,562
- Largest single originWilliamson County (81 households)
- Largest single destinationWilliamson County (77 households)
| Origin | Households | People | Adjusted gross income |
|---|---|---|---|
| Williamson County | 81 | 153 | $4.2 m |
| Union County | 27 | 55 | $1.5 m |
Households arriving report $12,524 more average income than households leaving, so the migration is raising local spending power rather than just moving it around. The largest single source of arrivals is Williamson 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.
Johnson County
What is the Johnson County economy?
- County GDP, 2024$328.9 m
- County GDP, 2023$310.9 m
- GDP change, 2023 to 20245.8 percent
- GDP change over five years41.2 percent
- Rank by GDP among the Illinois areas BEA publishes93rd of 102
- Rank by GDP among the US county areas BEA publishes2658th of 3,127
- GDP per resident$24,588
Output grew 5.8 percent in the latest year and 41.2 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.
Johnson County
Employment by industry in Johnson County
- Covered employment, annual average2,439
- Establishments reporting196
- Average annual pay$58,740
- Average weekly wage$1,130
- Health care and social assistance, employment178
- Health care and social assistance, average annual pay$46,814
- Retail trade, employment151
- Retail trade, average annual pay$27,861
- Construction, employment91
- Construction, average annual pay$68,586
| Sector | Employment | Establishments | Average annual pay |
|---|---|---|---|
| Health care and social assistance | 178 | 20 | $46,814 |
| Retail trade | 151 | 24 | $27,861 |
| Construction | 91 | 21 | $68,586 |
Health care and social assistance is the largest private sector at 178 jobs, 7.3 percent of covered employment.
US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
Johnson County
How many businesses are in Johnson County?
- Establishments, all industries175
- Employment at those establishments1,255
- Annual payroll$48.8 m
- Establishments per 1,000 residents13.1
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.
Johnson County
Building permits in Johnson County
- Housing units authorized by permit, 20240
- Declared construction value permitted$0
- Single family units authorized0
- Multifamily units authorized0
No residential units were authorized by permit in 2024. In a small county this is common and is not by itself a sign of distress, but it does mean there is no recent residential pipeline to read demand from.
US Census Bureau, Building Permits Survey, 2024 annual.
Johnson County
SBA loans in Johnson County (7(a) and 504)
- 7(a) approvals recorded4
- 7(a) gross approval dollars$480,000
- Average 7(a) approval$120,000
- Median 7(a) approval$115,000
- Largest single approval$200,000
- Jobs reported supported, 7(a)27
- Jobs per approval6.8
- Distinct 7(a) lenders active3
- Distinct industries receiving approvals4
- Median 7(a) term122 months
- Share of loans on real estate terms, 240 months or longer25.0 percent
- Loans on real estate terms1
- Loans on working capital terms, 120 months or shorter2
- Franchise loans0
- Franchise share of approvals0.0 percent
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Johnson County
SBA loan default and charge-off rates in Johnson County
Do SBA loans in Johnson County get paid back?
- Loans with a final outcome recorded1
- Paid in full1
- Charged off0
- Status: Exempt from disclosure3
- Status: Paid in full1
Only 1 loan has 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.
Johnson County
SBA lending by place in Johnson County
- Borrower cities with recorded lending2
- Vienna, approvals2
- Goreville, approvals2
| Borrower city | Approvals | Gross approval dollars |
|---|---|---|
| Vienna | 2 | $280,000 |
| Goreville | 2 | $200,000 |
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Johnson County
How large is Johnson County?
- Land area344 sq mi
- Rank by land area among Illinois counties85th of 102
- Width, east to west18.5 mi
- Height, north to south20.5 mi
- Geographies sharing a boundary5
- Residents per square mile of land39
- Establishments per square mile0.51
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.
Johnson County
Flood risk in Johnson County
- Participation of the county's own NFIP community Johnson County, unincorporated areasParticipating, community 170817
- Communities in the county in the NFIP Community Status Book2
- Of those, participating in the NFIP2
- NFIP participation rate100.0 percent
- Communities carrying a CRS class0
- Radon levels in Johnson County, EPA zone predicted average indoor radon screening level from 2 to 4 pCi/LZone 2
The county's own community in the status book, unincorporated Johnson County (community 170817), participates in the National Flood Insurance Program and carries no Community Rating System class, so no CRS premium discount applies there. The EPA places Johnson County in radon zone 2, a predicted average indoor radon screening level from 2 to 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 Johnson 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 Johnson County site starts with the figures you are reading, carrying the same source and period into the credit file.
- Population, American Community Survey 2020-202413,376
- Households4,101
- Average household size3.26
- Median household income$62,528
- Median age41.4
Common questions
Johnson County questions, answered from the record.
How many people live in Johnson County, Illinois?
The Census Bureau estimates 13,320 residents on July 1, 2024 (US Census Bureau, Population Estimates Program, Vintage 2024). The American Community Survey 2020-2024 five-year estimate is 13,376, in 4,101 households, ranking 79th of 102 Illinois counties. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Is Johnson County's population growing?
The population has grown 0.10 percent since the 2020 census base of 13,307, to 13,320 on July 1, 2024. In 2024 there were 94 births against 170 deaths, with net migration of 41. Source: US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
What is the median household income in Johnson County?
$62,528. The median owner-occupied home is valued at $160,500, which is 2.6 times income, and median gross rent is $781 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
How many businesses are in Johnson County?
175 establishments, employing 1,255 people with an annual payroll of $48.8 m. These are establishments physically operating in the county, not listings. Source: US Census Bureau, County Business Patterns, 2023.
What is employment by industry in Johnson County?
Health care and social assistance is the largest private sector at 178 jobs, 7.3 percent of covered employment. Covered employment averages 2,439 jobs at an average annual pay of $58,740, or $1,130 a week. Source: US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
How much SBA lending happens in Johnson County?
4 7(a) approvals totaling $480,000 since FY2020, across 3 lenders, with a median approval of $115,000. These are approvals recorded in the release, not loans disbursed.
How many building permits were issued in Johnson County?
No residential units were authorized by permit in 2024. Source: US Census Bureau, Building Permits Survey, 2024 annual.
What is the radon zone for Johnson County?
Zone 2, a predicted average indoor radon screening level from 2 to 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 Johnson County come from?
The largest single origin is Williamson County, with 81 households. Arriving households report an average income of $48,086 against $35,562 for those leaving. Source: US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.
Are traffic counts available for Johnson 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 Johnson 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.
Johnson County
Cities and places in Johnson.
7 Census places lie wholly or partly in Johnson County. All 7 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 |
|---|---|---|---|---|
| Vienna | city | 1,873 | 2 | Wholly in this county |
| Goreville | village | 1,236 | 2 | Wholly in this county |
| Buncombe | village | 329 | None recorded | Wholly in this county |
| Cypress | village | 252 | None recorded | Wholly in this county |
| New Burnside | village | 162 | None recorded | Wholly in this county |
| Belknap | village | 115 | None recorded | Wholly in this county |
| Simpson | village | 40 | None recorded | Wholly in this county |
Nearby