Village · Illinois
Louisville, Illinois
Louisville, village, in Clay County, Illinois. Louisville had 1,108 residents on July 1, 2025 by the Census Bureau's estimate, down 3.7% since 2020; the 2020 Census counted 1,136 and the ACS 2020-2024 5-year estimates put it at 1,163 (±226). GEOID 1744927.
Residents, July 2025 estimate
1,108
Census Bureau estimate (no margin published)
2020 Census count: 1,136 · ACS 2020-2024: 1,163 ±226
Median household income
$43,750
±$8,711 (90% margin)
Illinois: $83,390
Median home value
$87,100
±$11,665 (90% margin)
Illinois: $263,300
Median gross rent
$581
±$279 (90% margin)
Illinois: $1,274
Where is Louisville and what county is it in?
Louisville is a village in Clay County, Illinois. It covers 0.8 square miles of land, 1,372 residents per square mile in 2020.
Louisville lies entirely within Louisville 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 Louisville, and is it growing?
The Census Bureau estimates that 1,108 people lived in Louisville on July 1, 2025, down 3.7% since 2020, a steeper fall than Illinois's (−0.8%). The 2020 Census counted 1,136 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 1,163 (±226).
| Measure | Louisville | Clay County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,163 ±226 | 13,052 | no clear change |
| Households | 483 ±113 | 5,311 | no clear change |
| Average household size | 2.20 ±0.37 | 2.39 | no clear change |
| Housing units | 547 ±118 | 6,165 | no clear change |
Louisville's population since 2000
From 1,242 in 2000 to 1,108 in 2025: down 10.8%. The 2000, 2010 and 2020 figures are census counts, each for Louisville 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 Louisville?
The median resident of Louisville is 40.3 years old; 24.5% are under 18 and 21.8% are 65 or older. The largest group is non-Hispanic white residents at 94.8%, then Hispanic or Latino residents (of any race) at 4.1%.
| Measure | Louisville | Clay County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 40.3 ±6.2 | 40.4 | no clear change |
| Under 18 years | 24.5% ±7.3 pts | 23.8% | – |
| 65 years and over | 21.8% ±8.0 pts | 20.9% | – |
| Male | 46.1% ±6.5 pts | 49.6% | – |
| Hispanic or Latino (any race) | 4.1% ±4.8 pts | 2.0% | – |
| White alone, not Hispanic | 94.8% ±6.9 pts | 94.8% | no clear change |
| Black or African American alone, not Hispanic | 0.9% ±4.8 pts | 0.3% | – |
| Asian alone, not Hispanic | 0.0% ±3.2 pts | 0.2% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±3.2 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±3.2 pts | 0.0% | – |
| Two or more races, not Hispanic | 0.1% ±0.2 pts | 2.3% | – |
| Some other race alone, not Hispanic | 0.0% ±3.2 pts | 0.2% | – |
| Born outside the United States | 0.0% ±3.2 pts | 0.2% | – |
| Speak a language other than English at home (age 5+) | 3.0% ±2.8 pts | 1.2% | – |
| Civilian veterans (age 18+) | 5.1% ±2.8 pts | 8.9% | – |
| With a disability | 25.6% ±8.0 pts | 18.0% | – |
| No health insurance coverage | 4.1% ±3.6 pts | 5.1% | – |
| High school graduate or higher (age 25+) | 83.3% ±9.0 pts | 90.5% | – |
| Bachelor's degree or higher (age 25+) | 14.4% ±8.0 pts | 13.1% | no clear change |
| Graduate or professional degree (age 25+) | 2.1% ±2.1 pts | 4.3% | – |
| Lived in the same house a year earlier | 90.2% ±5.5 pts | 84.4% | – |
| Moved from another state in the past year | 0.2% ±0.3 pts | 0.3% | – |
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 Louisville earn?
Half of Louisville's 483 households earn less than $43,750 a year (±$8,711), against $60,417 in Clay County and $83,390 in Illinois. In 2015-2019 it was $42,795 in 2024 dollars; the margins of error cannot tell the two periods apart. 30.6% of residents live below the poverty line.
| Measure | Louisville | Clay County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $43,750 ±$8,711 | $60,417 | no clear change |
| Mean household income | $53,522 ±$10,399 | $78,529 | – |
| Per capita income | $23,204 ±$3,527 | $31,980 | no clear change |
| People below the poverty line | 30.6% ±8.8 pts | 17.5% | no clear change |
| Children under 18 below the poverty line | 46.8% ±18.7 pts | 17.7% | no clear change |
| Households receiving SNAP | 24.6% ±8.4 pts | 18.5% | – |
| Households with a computer | 87.6% ±8.4 pts | 90.9% | – |
| Households with a broadband subscription | 87.8% ±8.4 pts | 85.9% | – |
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 Louisville?
Owners occupy 55.1% of Louisville's occupied homes and renters 44.9%. The median owner-occupied home is valued at $87,100 by its owner (±$11,665). The median renter pays $581 a month including utilities, and 28.5% of renters pay 35% or more of their income on rent.
| Measure | Louisville | Clay County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $87,100 ±$11,665 | $97,400 | no clear change |
| Median gross rent | $581 ±$279 | $735 | no clear change |
| Renters paying 35% or more of income on rent | 28.5% ±17.6 pts | 18.7% | no clear change |
| Median monthly owner costs, with a mortgage | $952 ±$104 | $1,175 | – |
| Owner-occupied homes | 55.1% ±12.8 pts | 79.3% | no clear change |
| Renter-occupied homes | 44.9% ±12.8 pts | 20.7% | – |
| Housing units | 547 ±118 | 6,165 | no clear change |
| Homeowner vacancy rate | 2.6% ±4.3 pts | 0.4% | – |
| Rental vacancy rate | 0.0% ±15.8 pts | 3.2% | – |
| Single-family detached homes | 66.7% ±8.7 pts | 75.0% | – |
| Mobile homes | 18.3% ±7.3 pts | 17.5% | – |
| Built 2020 or later | 0.0% ±6.6 pts | 1.1% | – |
| Built 2010 to 2019 | 6.0% ±4.5 pts | 9.8% | – |
| Built 1939 or earlier | 10.4% ±6.0 pts | 19.7% | – |
| Households with no vehicle | 14.3% ±9.8 pts | 4.9% | – |
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 Louisville work and get to work?
92.6% of Louisville's workers drive alone. The average trip to work takes 20.9 minutes.
| Measure | Louisville | Clay County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 50.7% ±9.4 pts | 56.6% | – |
| Unemployment rate | 8.2% ±6.3 pts | 4.8% | – |
| Drove alone to work | 92.6% ±6.3 pts | 85.6% | – |
| Carpooled | 6.4% ±6.0 pts | 9.1% | – |
| Public transportation | 0.0% ±8.3 pts | 0.3% | – |
| Walked | 0.0% ±8.3 pts | 0.6% | – |
| Worked from home | 0.9% ±1.5 pts | 4.4% | – |
| Mean travel time to work | 20.9 min ±4.7 | 25.0 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 Louisville?
No census tract lies mostly in Louisville; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9720Clay County | 3,004 | $54,417 |
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 Louisville) · Census block assignment files
How does Louisville compare with other places in Illinois?
By the Census Bureau's July 2025 estimates, Louisville is the 9,869th-most populous of the 19,476 U.S. incorporated places that have one and the 621st-most populous of 1,294 in Illinois.
Louisville ranks 1,345th 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 | 621st | 1,294 |
| Growth 2020-2025 (PEP) | 1,158th | 1,347 |
| Residents per square mile | 485th | 1,383 |
| Median household income | 1,345th | 1,380 |
| Per capita income | 1,356th | 1,383 |
| Median home value | 1,276th | 1,379 |
| Median gross rent | 1,250th | 1,280 |
| Poverty rate | 15th | 1,119 |
| Bachelor's degree or higher | 1,192nd | 1,369 |
| Median age | 770th | 1,383 |
| Owner-occupied share | 1,328th | 1,382 |
| Travel time to work | 1,077th | 1,382 |
Louisville's figures with every place in Illinois (CSV)
Every place in Illinois, sortable · Compare Louisville 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 Louisville?
22 of the 57 figures for Louisville 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 Louisville 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 Louisville.