Village · Illinois
Johnsburg, Illinois
Johnsburg, village, in McHenry County, Illinois. Johnsburg had 6,445 residents on July 1, 2025 by the Census Bureau's estimate, up 0.9% since 2020; the 2020 Census counted 6,355 and the ACS 2020-2024 5-year estimates put it at 6,386 (±40). GEOID 1738479.
Residents, July 2025 estimate
6,445
Census Bureau estimate (no margin published)
2020 Census count: 6,355 · ACS 2020-2024: 6,386 ±40
Median household income
$121,023
±$24,453 (90% margin)
Illinois: $83,390
Median home value
$328,300
±$21,411 (90% margin)
Illinois: $263,300
Median gross rent
$1,128
±$125 (90% margin)
Illinois: $1,274
Where is Johnsburg and what county is it in?
Johnsburg is a village in McHenry County, Illinois. It covers 7.3 square miles of land, 876 residents per square mile in 2020.
Johnsburg is in the Chicago-Naperville-Elgin, IL-IN metropolitan statistical area, which takes in 13 counties (Census Bureau delineation, July 2023).
Johnsburg lies entirely within McHenry Township, a township with its own local government (2020 census blocks).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Johnsburg, and is it growing?
The Census Bureau estimates that 6,445 people lived in Johnsburg on July 1, 2025, up 0.9% since 2020, while Illinois shrank 0.8%. The 2020 Census counted 6,355 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 6,386 (±40).
| Measure | Johnsburg | McHenry County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 6,386 ±40 | 312,591 | no clear change |
| Households | 2,463 ±232 | 117,594 | +312 |
| Average household size | 2.59 ±0.24 | 2.64 | −0.38 |
| Housing units | 2,642 ±273 | 121,329 | no clear change |
Johnsburg's population since 2000
From 5,391 in 2000 to 6,445 in 2025: up 19.6%. The 2000, 2010 and 2020 figures are census counts, each for Johnsburg as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Johnsburg?
The median resident of Johnsburg is 49.1 years old; 21.1% are under 18 and 23.4% are 65 or older. The largest group is non-Hispanic white residents at 87.8%, then non-Hispanic residents of two or more races at 5.6%. 2.5% of residents were born outside the United States.
| Measure | Johnsburg | McHenry County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 49.1 ±5.3 | 40.7 | +7.7 |
| Under 18 years | 21.1% ±4.6 pts | 22.7% | – |
| 65 years and over | 23.4% ±5.3 pts | 16.5% | – |
| Male | 53.5% ±3.7 pts | 50.1% | – |
| Hispanic or Latino (any race) | 3.6% ±3.8 pts | 16.1% | – |
| White alone, not Hispanic | 87.8% ±8.2 pts | 76.1% | no clear change |
| Black or African American alone, not Hispanic | 1.6% ±2.0 pts | 1.4% | – |
| Asian alone, not Hispanic | 0.8% ±0.8 pts | 3.0% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.2 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.6 pts | 0.0% | – |
| Two or more races, not Hispanic | 5.6% ±4.8 pts | 3.2% | – |
| Some other race alone, not Hispanic | 0.5% ±0.9 pts | 0.2% | – |
| Born outside the United States | 2.5% ±1.6 pts | 9.9% | no clear change |
| Speak a language other than English at home (age 5+) | 3.7% ±1.6 pts | 16.1% | – |
| Civilian veterans (age 18+) | 8.7% ±3.4 pts | 5.6% | – |
| With a disability | 15.5% ±5.5 pts | 10.1% | – |
| No health insurance coverage | 2.9% ±2.6 pts | 4.5% | – |
| High school graduate or higher (age 25+) | 93.1% ±4.2 pts | 93.7% | – |
| Bachelor's degree or higher (age 25+) | 24.3% ±5.6 pts | 35.2% | −9.1 pts |
| Graduate or professional degree (age 25+) | 10.7% ±3.2 pts | 12.0% | – |
| Lived in the same house a year earlier | 97.6% ±1.9 pts | 91.4% | – |
| Moved from another state in the past year | 0.0% ±0.6 pts | 1.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Johnsburg earn?
Half of Johnsburg's 2,463 households earn less than $121,023 a year (±$24,453), against $104,802 in McHenry County and $83,390 in Illinois. In 2015-2019 it was $144,833 in 2024 dollars; the margins of error cannot tell the two periods apart. 12.1% of residents live below the poverty line.
| Measure | Johnsburg | McHenry County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $121,023 ±$24,453 | $104,802 | no clear change |
| Mean household income | $150,441 ±$23,667 | $130,520 | – |
| Per capita income | $56,427 ±$11,280 | $49,388 | no clear change |
| People below the poverty line | 12.1% ±6.2 pts | 6.2% | – |
| Children under 18 below the poverty line | 12.2% ±11.5 pts | 8.2% | – |
| Households receiving SNAP | 6.3% ±4.7 pts | 7.4% | – |
| Households with a computer | 95.7% ±3.7 pts | 97.7% | – |
| Households with a broadband subscription | 94.3% ±3.9 pts | 95.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Johnsburg?
Owners occupy 93.1% of Johnsburg's occupied homes and renters 6.9%. The median owner-occupied home is valued at $328,300 by its owner (±$21,411). The median renter pays $1,128 a month including utilities.
| Measure | Johnsburg | McHenry County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $328,300 ±$21,411 | $308,100 | no clear change |
| Median gross rent | $1,128 ±$125 | $1,401 | −$607 |
| Renters paying 35% or more of income on rent | 8.3% ±15.5 pts | 38.1% | – |
| Median monthly owner costs, with a mortgage | $2,048 ±$173 | $2,137 | – |
| Owner-occupied homes | 93.1% ±4.5 pts | 82.7% | no clear change |
| Renter-occupied homes | 6.9% ±4.5 pts | 17.3% | – |
| Housing units | 2,642 ±273 | 121,329 | no clear change |
| Homeowner vacancy rate | 4.1% ±4.0 pts | 0.5% | – |
| Rental vacancy rate | 28.4% ±36.0 pts | 2.9% | – |
| Single-family detached homes | 93.1% ±4.3 pts | 77.3% | – |
| Mobile homes | 0.7% ±1.1 pts | 0.7% | – |
| Built 2020 or later | 1.3% ±2.2 pts | 1.1% | – |
| Built 2010 to 2019 | 2.4% ±2.2 pts | 4.4% | – |
| Built 1939 or earlier | 14.1% ±5.8 pts | 8.0% | – |
| Households with no vehicle | 2.3% ±1.7 pts | 3.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Johnsburg building?
Builders took permits for 30 new housing units in Johnsburg in 2025 (30 in single-family houses), 4.7 per 1,000 residents against 1.5 across Illinois.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Johnsburg work and get to work?
83.3% of Johnsburg's workers drive alone and 11.4% work from home. The average trip to work takes 27.6 minutes.
| Measure | Johnsburg | McHenry County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 59.7% ±7.2 pts | 69.7% | – |
| Unemployment rate | 2.7% ±2.1 pts | 4.7% | – |
| Drove alone to work | 83.3% ±7.0 pts | 72.9% | – |
| Carpooled | 4.7% ±4.2 pts | 7.7% | – |
| Public transportation | 0.6% ±0.7 pts | 1.3% | – |
| Walked | 0.0% ±1.3 pts | 1.1% | – |
| Worked from home | 11.4% ±4.9 pts | 16.1% | +6.4 pts |
| Mean travel time to work | 27.6 min ±3.0 | 30.1 min | −5.4 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Johnsburg?
1 census tract lies mostly in Johnsburg, and 4 more reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 8707.03McHenry County | 6,321 | $105,349 |
| Tract 8707.02McHenry County | 7,429 | $113,519 |
| Tract 8706.04McHenry County | 5,389 | $80,000 |
| Tract 8707.04McHenry County | 3,605 | $104,236 |
| Tract 8706.03McHenry County | 4,519 | $76,477 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Johnsburg) · Census block assignment files
How does Johnsburg compare with other places in Illinois?
By the Census Bureau's July 2025 estimates, Johnsburg is the 4,260th-most populous of the 19,476 U.S. incorporated places that have one and the 296th-most populous of 1,294 in Illinois.
Johnsburg ranks 150th of 1,380 places in Illinois with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 296th | 1,294 |
| Growth 2020-2025 (PEP) | 187th | 1,347 |
| Residents per square mile | 676th | 1,383 |
| Median household income | 150th | 1,380 |
| Per capita income | 146th | 1,383 |
| Median home value | 199th | 1,379 |
| Median gross rent | 440th | 1,280 |
| Poverty rate | 430th | 1,119 |
| Bachelor's degree or higher | 666th | 1,369 |
| Median age | 113th | 1,383 |
| Owner-occupied share | 110th | 1,382 |
| Work from home | 488th | 1,015 |
| Travel time to work | 499th | 1,382 |
Johnsburg's figures with every place in Illinois (CSV)
Every place in Illinois, sortable · Compare Johnsburg with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Johnsburg?
22 of the 57 figures for Johnsburg on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Johnsburg are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Johnsburg.