Census tract · Jefferson County
Census Tract 40, Jefferson County, Kentucky
Census Tract 40, GEOID 21111004000, in Jefferson County, Kentucky, outside any city, town or census-designated place. 1,681 residents in the ACS 2020-2024 5-year estimates (±425); the 2020 Census counted 1,737.
Residents, 2020-2024
1,681
±425 (90% margin)
2020 Census count: 1,737
Median household income
$65,800
±$26,987 (90% margin)
Jefferson County: $69,866
Median home value
$104,300
±$29,846 (90% margin)
Jefferson County: $248,400
Median gross rent
$931
±$95 (90% margin)
Jefferson County: $1,149
Where is Census Tract 40?
Census Tract 40 is one of 216 census tracts in Jefferson County, Kentucky. It covers 0.21 square miles of land, 8,117 residents per square mile in 2020. Its GEOID, 21111004000, names it uniquely (how tract numbers and GEOIDs work).
3 census tracts border Census Tract 40: Tract 38 ($45,952), Tract 41 ($37,404) and Tract 44 ($45,662). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 40?
The 2020-2024 American Community Survey puts Census Tract 40's population at 1,681 (±425) in 680 households; the 2020 Census counted 1,737 residents and 817 housing units.
| Measure | Tract 40 | Jefferson County |
|---|---|---|
| Total population | 1,681±425 | 783,022 |
| Households | 680±121 | 331,554 |
| Average household size | 2.47±0.28 | 2.32 |
| Housing units | 746±109 | 359,710 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 40?
The median resident of Census Tract 40 is 30.3 years old; 19.5% are under 18 and 11.2% are 65 or older. The largest group is non-Hispanic white residents at 45.0%, then Hispanic or Latino residents (of any race) at 31.5%. 22.7% of residents were born outside the United States.
| Measure | Tract 40 | Jefferson County |
|---|---|---|
| Median age | 30.3±6.5 | 38.4 |
| Under 18 years | 19.5%±6.1 pts | 22.3% |
| 65 years and over | 11.2%±5.7 pts | 17.2% |
| Hispanic or Latino (any race) | 31.5%±14.6 pts | 8.6% |
| White alone, not Hispanic | 45.0%±11.4 pts | 62.0% |
| Black or African American alone, not Hispanic | 12.6%±7.5 pts | 20.6% |
| Asian alone, not Hispanic | 0.8%±0.7 pts | 3.1% |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±2.2 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±2.2 pts | 0.0% |
| Two or more races, not Hispanic | 10.1%±6.5 pts | 5.2% |
| Some other race alone, not Hispanic | 0.0%±2.2 pts | 0.4% |
| Born outside the United States | 22.7%±10.9 pts | 10.0% |
| Speak a language other than English at home (age 5+) | 31.1%±15.7 pts | 12.9% |
| Civilian veterans (age 18+) | 2.9%±2.1 pts | 6.2% |
| With a disability | 12.4%±5.5 pts | 14.4% |
| No health insurance coverage | 21.7%±10.1 pts | 5.7% |
| High school graduate or higher (age 25+) | 75.1%±9.9 pts | 91.3% |
| Bachelor's degree or higher (age 25+) | 15.0%±7.3 pts | 37.0% |
| Graduate or professional degree (age 25+) | 2.8%±2.5 pts | 15.5% |
| Lived in the same house a year earlier | 93.7%±3.7 pts | 86.4% |
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 Census Tract 40 earn?
Half of the 680 households in Census Tract 40 earn less than $65,800 a year (±$26,987), against $69,866 across Jefferson County: 114th highest of the county's 207 tracts with a reliable estimate. 28.6% of residents live below the poverty line.
| Measure | Tract 40 | Jefferson County |
|---|---|---|
| Median household income | $65,800±$26,987 | $69,866 |
| Mean household income | $78,160±$24,930 | $97,866 |
| Per capita income | $31,656±$10,134 | $42,087 |
| People below the poverty line | 28.6%±11.0 pts | 14.3% |
| Children under 18 below the poverty line | 51.5%±24.7 pts | 19.8% |
| Households receiving SNAP | 24.1%±10.4 pts | 11.0% |
| Households with a computer | 94.6%±5.3 pts | 94.9% |
| Households with a broadband subscription | 93.8%±5.3 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 Census Tract 40?
Owners occupy 37.1% of Census Tract 40's occupied homes and renters 62.9%. The median owner-occupied home is valued at $104,300 by its owner (±$29,846). The median renter pays $931 a month including utilities, and 34.1% of renters pay 35% or more of their income on rent.
| Measure | Tract 40 | Jefferson County |
|---|---|---|
| Median home value (owner-occupied) | $104,300±$29,846 | $248,400 |
| Median gross rent | $931±$95 | $1,149 |
| Renters paying 35% or more of income on rent | 34.1%±15.9 pts | 38.5% |
| Median monthly owner costs, with a mortgage | $1,136±$134 | $1,593 |
| Owner-occupied homes | 37.1%±11.3 pts | 62.1% |
| Renter-occupied homes | 62.9%±11.3 pts | 37.9% |
| Housing units | 746±109 | 359,710 |
| Single-family detached homes | 71.2%±12.1 pts | 64.0% |
| Mobile homes | 0.0%±4.9 pts | 1.2% |
| Built 2020 or later | 0.0%±4.9 pts | 1.5% |
| Built 2010 to 2019 | 0.0%±4.9 pts | 7.7% |
| Built 1939 or earlier | 49.2%±11.1 pts | 13.5% |
| Households with no vehicle | 9.4%±6.4 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 Census Tract 40 get to work?
74.3% of Census Tract 40's workers drive alone and 5.0% work from home. The average trip to work takes 17.4 minutes.
| Measure | Tract 40 | Jefferson County |
|---|---|---|
| In the labor force (age 16+) | 76.5%±6.9 pts | 65.5% |
| Unemployment rate | 6.2%±4.4 pts | 5.2% |
| Drove alone to work | 74.3%±12.2 pts | 72.4% |
| Carpooled | 6.2%±5.2 pts | 8.4% |
| Public transportation | 0.4%±0.7 pts | 1.5% |
| Walked | 7.1%±8.9 pts | 1.7% |
| Worked from home | 5.0%±3.0 pts | 14.2% |
| Mean travel time to work | 17.4 min±4.2 | 22.2 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
How does Census Tract 40 compare with the other tracts in Jefferson County?
Among Jefferson County's tracts with a reliable estimate, Census Tract 40 ranks as shown below (1 = highest).
| Measure | In Jefferson County |
|---|---|
| Population | 199th of 215 |
| Residents per square mile | 14th of 216 |
| Median household income | 114th of 207 |
| Per capita income | 132nd of 213 |
| Median home value | 183rd of 205 |
| Median gross rent | 176th of 204 |
| Poverty rate | 36th of 156 |
| Bachelor's degree or higher | 161st of 193 |
| Median age | 192nd of 214 |
| Owner-occupied share | 180th of 210 |
The tracts next to it on Jefferson County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 124.13 | 111th | $66,413±$36,030 · within the margin of this tract |
| Tract 100.04 | 112th | $66,370±$4,378 · within the margin of this tract |
| Tract 109.01 | 113th | $66,260±$7,626 · within the margin of this tract |
| Tract 40 | 114th | $65,800±$26,987 |
| Tract 106.02 | 115th | $64,770±$14,508 · within the margin of this tract |
| Tract 100.06 | 116th | $64,392±$11,100 · within the margin of this tract |
| Tract 123.01 | 117th | $64,295±$17,207 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 40?
1 of the 18 figures for Census Tract 40 on this page carries a coefficient of variation over 40% and is marked with a ring: they come from a small sample, so read them as rough.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). 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 · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections