Village · Illinois
Cave-In-Rock, Illinois
Cave-In-Rock, village, in Hardin County, Illinois. Cave-In-Rock had 222 residents on July 1, 2025 by the Census Bureau's estimate, down 2.6% since 2020; the 2020 Census counted 228 and the ACS 2020-2024 5-year estimates put it at 210 (±74). GEOID 1711826.
Residents, July 2025 estimate
222
Census Bureau estimate (no margin published)
2020 Census count: 228 · ACS 2020-2024: 210 ±74
Median household income
$29,250
±$9,766 (90% margin)
Illinois: $83,390
Median home value
$40,000
±$23,332 (90% margin)
Illinois: $263,300
Median gross rent
$490
±$211 (90% margin)
Illinois: $1,274
Where is Cave-In-Rock and what county is it in?
Cave-In-Rock is a village in Hardin County, Illinois. It covers 0.4 square miles of land, 610 residents per square mile in 2020.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Cave-In-Rock, and is it growing?
The Census Bureau estimates that 222 people lived in Cave-In-Rock on July 1, 2025, down 2.6% since 2020, a steeper fall than Illinois's (−0.8%). The 2020 Census counted 228 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 210 (±74).
| Measure | Cave-In-Rock | Hardin County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 210 ±74 | 3,605 | no clear change |
| Households | 118 ±35 | 1,545 | +52 |
| Average household size | 1.78 ±0.38 | 2.25 | −2.36 |
| Housing units | 167 ±41 | 2,337 | no clear change |
Cave-In-Rock's population since 2000
From 346 in 2000 to 222 in 2025: down 35.8%. The 2000, 2010 and 2020 figures are census counts, each for Cave-In-Rock 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 Cave-In-Rock?
The median resident of Cave-In-Rock is 60.6 years old. The largest group is non-Hispanic white residents at 97.6%, then non-Hispanic Black residents at 1.0%.
| Measure | Cave-In-Rock | Hardin County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 60.6 ±4.5 | 53.6 | +25.8 |
| Under 18 years | 3.3% ±4.4 pts | 14.8% | – |
| 65 years and over | 38.1% ±13.0 pts | 29.8% | – |
| Male | 51.4% ±10.5 pts | 52.4% | – |
| Hispanic or Latino (any race) | 0.5% ±1.3 pts | 0.9% | – |
| White alone, not Hispanic | 97.6% ±2.7 pts | 95.7% | no clear change |
| Black or African American alone, not Hispanic | 1.0% ±1.9 pts | 1.4% | – |
| Asian alone, not Hispanic | 0.0% ±16.3 pts | 0.0% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±16.3 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±16.3 pts | 0.0% | – |
| Two or more races, not Hispanic | 1.0% ±1.8 pts | 1.7% | – |
| Some other race alone, not Hispanic | 0.0% ±16.3 pts | 0.2% | – |
| Born outside the United States | 0.0% ±16.3 pts | 0.3% | – |
| Speak a language other than English at home (age 5+) | 0.5% ±1.3 pts | 0.3% | – |
| Civilian veterans (age 18+) | 4.9% ±4.0 pts | 8.6% | – |
| With a disability | 39.5% ±13.1 pts | 27.4% | – |
| No health insurance coverage | 13.8% ±13.4 pts | 3.7% | – |
| High school graduate or higher (age 25+) | 86.1% ±8.7 pts | 91.9% | – |
| Bachelor's degree or higher (age 25+) | 1.5% ±2.5 pts | 13.3% | – |
| Graduate or professional degree (age 25+) | 0.0% ±17.5 pts | 5.2% | – |
| Lived in the same house a year earlier | 85.7% ±14.9 pts | 89.3% | – |
| Moved from another state in the past year | 1.4% ±3.4 pts | 5.2% | – |
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 Cave-In-Rock earn?
Half of Cave-In-Rock's 118 households earn less than $29,250 a year (±$9,766), against $54,271 in Hardin County and $83,390 in Illinois. In 2015-2019 the median was $60,656 in 2024 dollars, so it fell by $31,406 after inflation. 27.6% of residents live below the poverty line.
| Measure | Cave-In-Rock | Hardin County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $29,250 ±$9,766 | $54,271 | −$31,406 |
| Mean household income | $33,112 ±$6,287 | $64,030 | – |
| Per capita income | $19,989 ±$3,923 | $29,650 | no clear change |
| People below the poverty line | 27.6% ±15.8 pts | 11.0% | no clear change |
| Children under 18 below the poverty line | 100.0% ±100.0 pts | 11.8% | – |
| Households receiving SNAP | 24.6% ±12.6 pts | 18.5% | – |
| Households with a computer | 74.6% ±13.5 pts | 83.8% | – |
| Households with a broadband subscription | 70.3% ±14.1 pts | 78.6% | – |
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 Cave-In-Rock?
Owners occupy 55.9% of Cave-In-Rock's occupied homes and renters 44.1%. The median owner-occupied home is valued at $40,000 by its owner (±$23,332). The median renter pays $490 a month including utilities.
| Measure | Cave-In-Rock | Hardin County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $40,000 ±$23,332 | $103,800 | no clear change |
| Median gross rent | $490 ±$211 | $379 | no clear change |
| Renters paying 35% or more of income on rent | 27.1% ±21.4 pts | 5.9% | – |
| Median monthly owner costs, with a mortgage | $783 ±$223 | $1,089 | – |
| Owner-occupied homes | 55.9% ±14.6 pts | 79.5% | no clear change |
| Renter-occupied homes | 44.1% ±14.6 pts | 20.5% | – |
| Housing units | 167 ±41 | 2,337 | no clear change |
| Homeowner vacancy rate | 7.0% ±8.9 pts | 0.7% | – |
| Rental vacancy rate | 16.1% ±16.7 pts | 10.7% | – |
| Single-family detached homes | 71.3% ±11.4 pts | 71.8% | – |
| Mobile homes | 11.4% ±9.0 pts | 18.2% | – |
| Built 2020 or later | 0.0% ±20.0 pts | 0.7% | – |
| Built 2010 to 2019 | 0.0% ±20.0 pts | 3.4% | – |
| Built 1939 or earlier | 25.7% ±11.0 pts | 19.3% | – |
| Households with no vehicle | 14.4% ±13.8 pts | 9.0% | – |
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 Cave-In-Rock building?
Builders took permits for 0 new housing units in Cave-In-Rock in 2025 (0 in single-family houses), 0.0 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 Cave-In-Rock work and get to work?
83.5% of Cave-In-Rock's workers drive alone. The average trip to work takes 26.6 minutes.
| Measure | Cave-In-Rock | Hardin County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 43.9% ±13.8 pts | 41.1% | – |
| Unemployment rate | 5.6% ±10.5 pts | 2.8% | – |
| Drove alone to work | 83.5% ±16.5 pts | 81.5% | – |
| Carpooled | 0.0% ±33.9 pts | 10.2% | – |
| Public transportation | 0.0% ±33.9 pts | 1.3% | – |
| Walked | 9.4% ±12.3 pts | 3.6% | – |
| Worked from home | 3.5% ±5.8 pts | 2.2% | – |
| Mean travel time to work | 26.6 min ±9.6 | 28.2 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 Cave-In-Rock?
No census tract lies mostly in Cave-In-Rock; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9710Hardin County | 1,851 | $55,536 |
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 Cave-In-Rock) · Census block assignment files
How does Cave-In-Rock compare with other places in Illinois?
By the Census Bureau's July 2025 estimates, Cave-In-Rock is the 16,166th-most populous of the 19,476 U.S. incorporated places that have one and the 1,077th-most populous of 1,294 in Illinois.
Cave-In-Rock 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 | 1,077th | 1,294 |
Cave-In-Rock's figures with every place in Illinois (CSV)
Every place in Illinois, sortable · Compare Cave-In-Rock 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 Cave-In-Rock?
28 of the 57 figures for Cave-In-Rock 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 Cave-In-Rock 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 Cave-In-Rock.