City · Kentucky
Lyndon, Kentucky
Lyndon, city, in Jefferson County, Kentucky. Lyndon had 11,301 residents on July 1, 2025 by the Census Bureau's estimate, up 2.2% since 2020; the 2020 Census counted 11,008 and the ACS 2020-2024 5-year estimates put it at 11,030 (±50). GEOID 2148558.
Residents, July 2025 estimate
11,301
Census Bureau estimate (no margin published)
2020 Census count: 11,008 · ACS 2020-2024: 11,030 ±50
Median household income
$65,679
±$7,384 (90% margin)
Kentucky: $63,726
Median home value
$276,800
±$19,019 (90% margin)
Kentucky: $205,600
Median gross rent
$1,246
±$50 (90% margin)
Kentucky: $967
Where is Lyndon and what county is it in?
Lyndon is a city in Jefferson County, Kentucky. It covers 3.6 square miles of land, 3,057 residents per square mile in 2020.
Lyndon is in the Louisville/Jefferson County, KY-IN metropolitan statistical area, which takes in 12 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Lyndon, and is it growing?
The Census Bureau estimates that 11,301 people lived in Lyndon on July 1, 2025, up 2.2% since 2020, in line with Kentucky (+2.2%). The 2020 Census counted 11,008 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 11,030 (±50).
| Measure | Lyndon | Jefferson County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 11,030 ±50 | 783,022 | −401 |
| Households | 5,759 ±318 | 331,554 | no clear change |
| Average household size | 1.91 ±0.10 | 2.32 | no clear change |
| Housing units | 6,183 ±341 | 359,710 | no clear change |
Lyndon's population since 2000
From 9,369 in 2000 to 11,301 in 2025: up 20.6%. The 2000, 2010 and 2020 figures are census counts, each for Lyndon 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 Lyndon?
The median resident of Lyndon is 36.0 years old; 16.7% are under 18 and 19.3% are 65 or older. The largest group is non-Hispanic white residents at 73.2%, then non-Hispanic Black residents at 14.0%. 10.9% of residents were born outside the United States.
| Measure | Lyndon | Jefferson County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 36.0 ±3.0 | 38.4 | no clear change |
| Under 18 years | 16.7% ±3.8 pts | 22.3% | – |
| 65 years and over | 19.3% ±2.8 pts | 17.2% | – |
| Male | 46.0% ±3.2 pts | 48.7% | – |
| Hispanic or Latino (any race) | 3.9% ±2.3 pts | 8.6% | −5.2 pts |
| White alone, not Hispanic | 73.2% ±4.5 pts | 62.0% | no clear change |
| Black or African American alone, not Hispanic | 14.0% ±4.4 pts | 20.6% | no clear change |
| Asian alone, not Hispanic | 2.9% ±1.2 pts | 3.1% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.3% ±0.3 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.3 pts | 0.0% | – |
| Two or more races, not Hispanic | 5.6% ±2.4 pts | 5.2% | – |
| Some other race alone, not Hispanic | 0.2% ±0.3 pts | 0.4% | – |
| Born outside the United States | 10.9% ±3.3 pts | 10.0% | no clear change |
| Speak a language other than English at home (age 5+) | 14.9% ±5.2 pts | 12.9% | – |
| Civilian veterans (age 18+) | 6.0% ±2.2 pts | 6.2% | – |
| With a disability | 11.9% ±2.6 pts | 14.4% | – |
| No health insurance coverage | 9.1% ±2.7 pts | 5.7% | no clear change |
| High school graduate or higher (age 25+) | 95.0% ±1.5 pts | 91.3% | – |
| Bachelor's degree or higher (age 25+) | 43.8% ±4.5 pts | 37.0% | no clear change |
| Graduate or professional degree (age 25+) | 17.8% ±3.2 pts | 15.5% | – |
| Lived in the same house a year earlier | 81.5% ±4.0 pts | 86.4% | – |
| Moved from another state in the past year | 2.2% ±1.1 pts | 2.5% | – |
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 Lyndon earn?
Half of Lyndon's 5,759 households earn less than $65,679 a year (±$7,384), against $69,866 in Jefferson County and $63,726 in Kentucky. In 2015-2019 it was $70,730 in 2024 dollars; the margins of error cannot tell the two periods apart. 9.2% of residents live below the poverty line.
| Measure | Lyndon | Jefferson County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $65,679 ±$7,384 | $69,866 | no clear change |
| Mean household income | $83,066 ±$7,507 | $97,866 | – |
| Per capita income | $43,866 ±$4,060 | $42,087 | no clear change |
| People below the poverty line | 9.2% ±3.1 pts | 14.3% | no clear change |
| Children under 18 below the poverty line | 8.6% ±9.6 pts | 19.8% | – |
| Households receiving SNAP | 3.5% ±1.7 pts | 11.0% | – |
| Households with a computer | 95.5% ±2.4 pts | 94.9% | – |
| Households with a broadband subscription | 92.0% ±2.3 pts | 90.9% | – |
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 Lyndon?
Owners occupy 44.2% of Lyndon's occupied homes and renters 55.8%. The median owner-occupied home is valued at $276,800 by its owner (±$19,019). The median renter pays $1,246 a month including utilities, and 45.0% of renters pay 35% or more of their income on rent.
| Measure | Lyndon | Jefferson County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $276,800 ±$19,019 | $248,400 | +$41,368 |
| Median gross rent | $1,246 ±$50 | $1,149 | no clear change |
| Renters paying 35% or more of income on rent | 45.0% ±8.1 pts | 38.5% | +16.5 pts |
| Median monthly owner costs, with a mortgage | $1,667 ±$175 | $1,593 | – |
| Owner-occupied homes | 44.2% ±4.2 pts | 62.1% | no clear change |
| Renter-occupied homes | 55.8% ±4.2 pts | 37.9% | – |
| Housing units | 6,183 ±341 | 359,710 | no clear change |
| Homeowner vacancy rate | 0.3% ±0.6 pts | 0.9% | – |
| Rental vacancy rate | 7.8% ±4.4 pts | 6.3% | – |
| Single-family detached homes | 45.6% ±4.3 pts | 64.0% | – |
| Mobile homes | 0.3% ±0.5 pts | 1.2% | – |
| Built 2020 or later | 3.0% ±1.9 pts | 1.5% | – |
| Built 2010 to 2019 | 5.9% ±2.1 pts | 7.7% | – |
| Built 1939 or earlier | 2.3% ±1.2 pts | 13.5% | – |
| Households with no vehicle | 4.3% ±2.0 pts | 8.7% | – |
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 Lyndon work and get to work?
75.8% of Lyndon's workers drive alone and 15.5% work from home. The average trip to work takes 19.4 minutes. The unemployment rate in 2020-2024 averaged 4.6%.
| Measure | Lyndon | Jefferson County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 71.5% ±4.0 pts | 65.5% | – |
| Unemployment rate | 4.6% ±2.5 pts | 5.2% | no clear change |
| Drove alone to work | 75.8% ±4.0 pts | 72.4% | – |
| Carpooled | 5.7% ±2.3 pts | 8.4% | – |
| Public transportation | 0.0% ±0.6 pts | 1.5% | – |
| Walked | 1.9% ±1.4 pts | 1.7% | – |
| Worked from home | 15.5% ±3.5 pts | 14.2% | +12.4 pts |
| Mean travel time to work | 19.4 min ±1.3 | 22.2 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 Lyndon?
2 census tracts lie mostly in Lyndon, and 6 more reach into it (2020 census blocks). Their median household incomes run from $67,250 (Tract 101.03) to $83,578 (Tract 100.05).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 101.03Jefferson County | 3,613 | $67,250 |
| Tract 100.05Jefferson County | 4,834 | $83,578 |
| Tract 100.04Jefferson County | 4,253 | $66,370 |
| Tract 101.02Jefferson County | 4,466 | $118,224 |
| Tract 101.04Jefferson County | 2,842 | $75,191 |
| Tract 100.06Jefferson County | 3,647 | $64,392 |
| Tract 104.06Jefferson County | 6,014 | $110,223 |
| Tract 104.03Jefferson County | 4,163 | $100,231 |
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 Lyndon) · Census block assignment files
How does Lyndon compare with other places in Kentucky?
By the Census Bureau's July 2025 estimates, Lyndon is the 2,941st-most populous of the 19,476 U.S. incorporated places that have one and the 37th-most populous of 418 in Kentucky.
Lyndon ranks 81st of 230 places in Kentucky with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 37th | 418 |
| Growth 2020-2025 (PEP) | 85th | 204 |
| Residents per square mile | 22nd | 232 |
| Median household income | 81st | 230 |
| Per capita income | 41st | 232 |
| Median home value | 40th | 225 |
| Median gross rent | 35th | 217 |
| Poverty rate | 174th | 203 |
| Bachelor's degree or higher | 35th | 223 |
| Median age | 170th | 232 |
| Owner-occupied share | 200th | 229 |
| Work from home | 36th | 130 |
| Travel time to work | 169th | 232 |
Lyndon's figures with every place in Kentucky (CSV)
Every place in Kentucky, sortable · Compare Lyndon 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 Lyndon?
8 of the 57 figures for Lyndon 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 Lyndon 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 Lyndon.