Village · Illinois
Rockbridge, Illinois
Rockbridge, village, in Greene County, Illinois. Rockbridge had 170 residents on July 1, 2025 by the Census Bureau's estimate, down 5.6% since 2020; the 2020 Census counted 175 and the ACS 2020-2024 5-year estimates put it at 146 (±105). GEOID 1764811.
Residents, July 2025 estimate
170
Census Bureau estimate (no margin published)
2020 Census count: 175 · ACS 2020-2024: 146 ±105
Median household income
$98,125
±$52,693 (90% margin)
Illinois: $83,390
Median home value
$77,500
±$16,135 (90% margin)
Illinois: $263,300
Median gross rent
$1,313
±$243 (90% margin)
Illinois: $1,274
Where is Rockbridge and what county is it in?
Rockbridge is a village in Greene County, Illinois. It covers 0.7 square miles of land, 237 residents per square mile in 2020.
Rockbridge lies entirely within Rockbridge 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 Rockbridge, and is it growing?
The Census Bureau estimates that 170 people lived in Rockbridge on July 1, 2025, down 5.6% since 2020, a steeper fall than Illinois's (−0.8%). The 2020 Census counted 175 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 146 (±105).
| Measure | Rockbridge | Greene County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 146 ±105 | 11,683 | – |
| Households | 33 ±18 | 4,452 | −28 |
| Average household size | 4.42 ±2.39 | 2.58 | no clear change |
| Housing units | 71 ±26 | 5,785 | no clear change |
Rockbridge's population since 2000
From 189 in 2000 to 170 in 2025: down 10.1%. The 2000, 2010 and 2020 figures are census counts, each for Rockbridge 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 Rockbridge?
The median resident of Rockbridge is 46.5 years old. The largest group is non-Hispanic white residents at 67.1%, then non-Hispanic Black residents at 28.1%.
| Measure | Rockbridge | Greene County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 46.5 ±9.1 | 43.4 | no clear change |
| Under 18 years | 29.5% ±20.7 pts | 22.0% | – |
| 65 years and over | 13.0% ±8.4 pts | 20.8% | – |
| Male | 55.5% ±13.9 pts | 50.5% | – |
| Hispanic or Latino (any race) | 2.1% ±5.5 pts | 1.1% | – |
| White alone, not Hispanic | 67.1% ±20.4 pts | 95.8% | −32.9 pts |
| Black or African American alone, not Hispanic | 28.1% ±21.3 pts | 0.8% | – |
| Asian alone, not Hispanic | 0.0% ±22.4 pts | 0.5% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±22.4 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±22.4 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.7% ±4.4 pts | 1.6% | – |
| Some other race alone, not Hispanic | 0.0% ±22.4 pts | 0.1% | – |
| Born outside the United States | 0.0% ±22.4 pts | 0.2% | – |
| Speak a language other than English at home (age 5+) | 0.0% ±22.4 pts | 1.4% | – |
| Civilian veterans (age 18+) | 5.8% ±6.3 pts | 7.4% | – |
| With a disability | 28.1% ±18.6 pts | 16.8% | – |
| No health insurance coverage | 2.1% ±3.8 pts | 4.1% | – |
| High school graduate or higher (age 25+) | 99.0% ±4.4 pts | 91.2% | – |
| Bachelor's degree or higher (age 25+) | 0.0% ±31.2 pts | 19.0% | – |
| Graduate or professional degree (age 25+) | 0.0% ±31.2 pts | 6.0% | – |
| Lived in the same house a year earlier | 100.0% ±22.4 pts | 92.0% | – |
| Moved from another state in the past year | 0.0% ±22.4 pts | 0.7% | – |
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 Rockbridge earn?
Half of Rockbridge's 33 households earn less than $98,125 a year (±$52,693), against $62,192 in Greene County and $83,390 in Illinois.
| Measure | Rockbridge | Greene County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $98,125 ±$52,693 | $62,192 | – |
| Mean household income | $95,070 ±$20,530 | $84,051 | – |
| Per capita income | $26,623 ±$9,188 | $33,635 | no clear change |
| People below the poverty line | 6.8% ±9.7 pts | 14.3% | – |
| Children under 18 below the poverty line | 4.7% ±11.7 pts | 18.4% | – |
| Households receiving SNAP | 6.1% ±9.7 pts | 15.5% | – |
| Households with a computer | 100.0% ±55.5 pts | 93.9% | – |
| Households with a broadband subscription | 97.0% ±6.9 pts | 88.3% | – |
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 Rockbridge?
Owners occupy 90.9% of Rockbridge's occupied homes and renters 9.1%. The median owner-occupied home is valued at $77,500 by its owner (±$16,135). The median renter pays $1,313 a month including utilities.
| Measure | Rockbridge | Greene County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $77,500 ±$16,135 | $95,200 | no clear change |
| Median gross rent | $1,313 ±$243 | $754 | – |
| Renters paying 35% or more of income on rent | 33.3% ±66.7 pts | 28.1% | – |
| Median monthly owner costs, with a mortgage | $981 ±$72 | $1,165 | – |
| Owner-occupied homes | 90.9% ±10.9 pts | 78.2% | no clear change |
| Renter-occupied homes | 9.1% ±10.9 pts | 21.8% | – |
| Housing units | 71 ±26 | 5,785 | no clear change |
| Homeowner vacancy rate | 8.6% ±16.9 pts | 1.0% | – |
| Rental vacancy rate | 0.0% ±100.0 pts | 7.5% | – |
| Single-family detached homes | 88.7% ±14.0 pts | 82.8% | – |
| Mobile homes | 11.3% ±14.0 pts | 10.3% | – |
| Built 2020 or later | 0.0% ±37.8 pts | 0.7% | – |
| Built 2010 to 2019 | 0.0% ±37.8 pts | 4.0% | – |
| Built 1939 or earlier | 46.5% ±20.6 pts | 36.0% | – |
| Households with no vehicle | 0.0% ±55.5 pts | 4.6% | – |
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 do people in Rockbridge work and get to work?
85.4% of Rockbridge's workers drive alone. The average trip to work takes 26.5 minutes.
| Measure | Rockbridge | Greene County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 38.4% ±24.7 pts | 58.0% | – |
| Unemployment rate | 5.4% ±9.0 pts | 4.9% | – |
| Drove alone to work | 85.4% ±16.4 pts | 76.0% | – |
| Carpooled | 0.0% ±46.0 pts | 12.0% | – |
| Public transportation | 0.0% ±46.0 pts | 0.1% | – |
| Walked | 0.0% ±46.0 pts | 0.8% | – |
| Worked from home | 14.6% ±16.4 pts | 10.0% | – |
| Mean travel time to work | 26.5 min ±9.1 | 29.0 min | no clear change |
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 Rockbridge?
No census tract lies mostly in Rockbridge; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9736Greene County | 2,858 | $69,297 |
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 Rockbridge) · Census block assignment files
How does Rockbridge compare with other places in Illinois?
By the Census Bureau's July 2025 estimates, Rockbridge is the 16,964th-most populous of the 19,476 U.S. incorporated places that have one and the 1,137th-most populous of 1,294 in Illinois.
Rockbridge is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 1,137th | 1,294 |
Rockbridge's figures with every place in Illinois (CSV)
Every place in Illinois, sortable · Compare Rockbridge 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 Rockbridge?
33 of the 57 figures for Rockbridge 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 Rockbridge 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 Rockbridge.