HomeIllinoisWilliamson CountyJohnston City
Johnston City, Illinois: commercial real estate data.
Johnston City is a Census city of 3,327 people across 2.12 square miles of land, in Williamson County. Median household income is $42,465, 71.4 percent of occupied homes are owned, and the SBA record carries 4 7(a) approvals to borrowers here worth $961,800 since FY2020.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Johnston City
What Johnston City is
- Census place typecity
- Land area2.12 sq mi
- Water area0.06 sq mi
- Population per square mile of land1,572
- County holding the largest share of its areaWilliamson County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Johnston City
How many people live in Johnston City
- Population3,327
- Median age38.3
- Population under 18715 plus or minus 197
- Share under 1821.5 percent plus or minus 5.9
- Population 65 and over556 plus or minus 204
- Share 65 and over16.7 percent plus or minus 6.1
- Households1,449
- Family households869
- Share of households that are families60.0 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Johnston City
Income and work in Johnston City
- Median household income$42,465 plus or minus $30,234
- Per capita income$31,596 plus or minus $7,918
- Civilian labor force1,527
- Employed1,401
- Unemployed126 plus or minus 77
- Unemployment rate8.3 percent plus or minus 4.8
- Adults 25 and over2,204
- Adults 25 and over with a high school diploma or higher88.9 percent
- Adults 25 and over with a bachelor degree or higher19.2 percent plus or minus 10.2
- Adults 25 and over with a graduate degree10.3 percent plus or minus 8.5
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Johnston City
Housing in Johnston City
- Housing units1,581
- Occupied units1,449
- Vacant units132 plus or minus 136
- Vacancy rate8.3 percent plus or minus 8.5
- Owner occupied1,034 plus or minus 226
- Renter occupied415 plus or minus 185
- Ownership rate71.4 percent
- Median owner-occupied home value$88,100
- Median gross rent, monthly$976 plus or minus $223
- Annual rent as a share of median income27.6 percent plus or minus 20.6
- Single family units1,317
- Share single family83.3 percent
- Units in buildings of two or more224 plus or minus 149
- Share in buildings of two or more14.2 percent plus or minus 9.2
- Mobile homes40 plus or minus 51
- Median year structure built1956
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Johnston City
How Johnston City gets to work
- Workers 16 and over who commute1,290
- Commuting under 15 minutes714 plus or minus 325
- Share commuting under 15 minutes55.3 percent plus or minus 23.3
- Commuting 30 minutes or more149 plus or minus 95
- Share commuting 30 minutes or more11.6 percent plus or minus 7.1
- Drove alone83.7 percent
- Carpooled9.0 percent plus or minus 10.2
- Public transport2.3 percent plus or minus 2.7
- Walked0.0 percent
- Worked from home2.6 percent plus or minus 4.0
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Johnston City
SBA loans in Johnston City (7(a))
- Approvals4
- Gross approval$961,800
- Average approval$240,450
- Median approval$208,400
- Largest approval$500,000
- Jobs supported15
- Jobs per approval3.8
- Loans with a final outcome1
- Paid in full1
- Charged off0
- Median term78 months
- Share on real estate terms of 20 years or more25.0 percent
- Share to franchises0.0 percent
- Distinct lenders3
- Distinct industries by NAICS2
Counted by borrower city: approvals to borrowers whose address is in Johnston City, in any county, FY2020 to FY2026. Only 1 loan has reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Johnston City
Flood risk in Johnston City
- NFIP communityCity of Johnston City
- NFIP community number170718
- Participating in the NFIPYes
- Community Rating System classNone
- Currently effective map date08/04/08
The City of Johnston City participates in the National Flood Insurance Program as community 170718 and carries no Community Rating System class, so no CRS premium discount applies to it.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
Williamson County, not Johnston City
Williamson County context, not Johnston City figures
- Establishments in Williamson County1,597
- Covered employment, Williamson County28,465
- Average annual pay, Williamson County$53,081
- Housing units permitted, Williamson County138
Every figure in this section is published for Williamson County as a whole and is not a measurement of Johnston City.
All Williamson County figures →
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.
Coverage
What this page does not hold.
Parcel detail, 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 →
Common questions
Johnston City questions, answered from the record.
How many people live in Johnston City, Illinois?
3,327, in 1,449 households. Johnston City city covers 2.12 square miles of land, which is 1,572 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Johnston City in?
Williamson County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in Johnston City?
$42,465. The median owner-occupied home is valued at $88,100. Median gross rent is $976 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
How much SBA lending goes to Johnston City businesses?
4 7(a) approvals totaling $961,800 since FY2020, across 3 lenders, median approval $208,400. These count approvals to borrowers whose address is in Johnston City, not projects sited inside the place boundary, and they are approvals recorded in the release rather than loans disbursed.
Do SBA loans to Johnston City borrowers get paid back?
No rate is published for Johnston City. Only 1 loan has reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published. The counts are shown instead.
Is Johnston City in the National Flood Insurance Program?
Yes. Johnston City appears in the FEMA Community Status Book as Johnston City, city of, community 170718, with no Community Rating System class, so no CRS discount applies. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.
Are the county figures on this page Johnston City figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Williamson County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Johnston City.
Is zoning published for Johnston City?
No. Nothing on this page presents parcel level zoning.
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