Census tract · Jefferson County
Census Tract 121.04, Jefferson County, Kentucky
Census Tract 121.04, GEOID 21111012104, in Jefferson County, Kentucky, entirely within Louisville/Jefferson County. 4,539 residents in the ACS 2020-2024 5-year estimates (±688); the 2020 Census counted 4,072.
Residents, 2020-2024
4,539
±688 (90% margin)
2020 Census count: 4,072
Median household income
$57,891
±$19,106 (90% margin)
Jefferson County: $69,866
Median home value
$137,500
±$24,358 (90% margin)
Jefferson County: $248,400
Median gross rent
$1,396
±$217 (90% margin)
Jefferson County: $1,149
Where is Census Tract 121.04?
Census Tract 121.04 is one of 216 census tracts in Jefferson County, Kentucky. It covers 5.45 square miles of land, 747 residents per square mile in 2020. Its GEOID, 21111012104, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Louisville/Jefferson County | 100% |
4 census tracts border Census Tract 121.04: Tract 209 in Bullitt County ($91,312), Tract 1 in Hardin County ($37,941), Tract 121.03 ($80,556) and Tract 121.07 ($62,777). 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 121.04?
The 2020-2024 American Community Survey puts Census Tract 121.04's population at 4,539 (±688) in 1,615 households; the 2020 Census counted 4,072 residents and 1,669 housing units.
| Measure | Tract 121.04 | Louisville/Jefferson County |
|---|---|---|
| Total population | 4,539 ±688 | 631,818 |
| Households | 1,615 ±291 | 264,505 |
| Average household size | 2.81 ±0.33 | 2.34 |
| Housing units | 1,747 ±284 | 289,095 |
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 121.04?
The median resident of Census Tract 121.04 is 36.2 years old; 31.5% are under 18 and 14.2% are 65 or older. The largest group is non-Hispanic white residents at 75.8%, then non-Hispanic residents of two or more races at 10.0%.
| Measure | Tract 121.04 | Louisville/Jefferson County |
|---|---|---|
| Median age | 36.2 ±4.1 | 37.7 |
| Under 18 years | 31.5% ±4.8 pts | 22.5% |
| 65 years and over | 14.2% ±3.8 pts | 16.1% |
| Hispanic or Latino (any race) | 7.2% ±4.9 pts | 9.5% |
| White alone, not Hispanic | 75.8% ±9.7 pts | 59.4% |
| Black or African American alone, not Hispanic | 6.9% ±9.4 pts | 22.1% |
| Asian alone, not Hispanic | 0.0% ±0.8 pts | 2.9% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.8 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.8 pts | 0.0% |
| Two or more races, not Hispanic | 10.0% ±7.2 pts | 5.4% |
| Some other race alone, not Hispanic | 0.0% ±0.8 pts | 0.5% |
| Born outside the United States | 4.1% ±3.9 pts | 10.4% |
| Speak a language other than English at home (age 5+) | 5.0% ±4.5 pts | 13.7% |
| Civilian veterans (age 18+) | 7.3% ±2.9 pts | 6.1% |
| With a disability | 16.9% ±4.6 pts | 14.7% |
| No health insurance coverage | 3.7% ±2.0 pts | 6.0% |
| High school graduate or higher (age 25+) | 85.6% ±5.6 pts | 90.3% |
| Bachelor's degree or higher (age 25+) | 10.2% ±4.5 pts | 33.8% |
| Graduate or professional degree (age 25+) | 2.9% ±2.0 pts | 14.0% |
| Lived in the same house a year earlier | 92.7% ±4.1 pts | 86.3% |
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 Census Tract 121.04 earn?
Half of the 1,615 households in Census Tract 121.04 earn less than $57,891 a year (±$19,106), against $69,866 across Jefferson County: 135th highest of the county's 207 tracts with a reliable estimate. 20.1% of residents live below the poverty line.
| Measure | Tract 121.04 | Louisville/Jefferson County |
|---|---|---|
| Median household income | $57,891 ±$19,106 | $66,849 |
| Mean household income | $67,789 ±$8,307 | $93,175 |
| Per capita income | $23,747 ±$2,639 | $39,683 |
| People below the poverty line | 20.1% ±10.2 pts | 15.8% |
| Children under 18 below the poverty line | 36.1% ±21.6 pts | 22.4% |
| Households receiving SNAP | 20.2% ±8.3 pts | 12.5% |
| Households with a computer | 97.1% ±2.3 pts | 94.6% |
| Households with a broadband subscription | 87.9% ±6.3 pts | 90.5% |
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 121.04?
Owners occupy 81.6% of Census Tract 121.04's occupied homes and renters 18.4%. The median owner-occupied home is valued at $137,500 by its owner (±$24,358). The median renter pays $1,396 a month including utilities, and 41.9% of renters pay 35% or more of their income on rent.
| Measure | Tract 121.04 | Louisville/Jefferson County |
|---|---|---|
| Median home value (owner-occupied) | $137,500 ±$24,358 | $233,900 |
| Median gross rent | $1,396 ±$217 | $1,120 |
| Renters paying 35% or more of income on rent | 41.9% ±24.8 pts | 39.0% |
| Median monthly owner costs, with a mortgage | $1,149 ±$120 | $1,555 |
| Owner-occupied homes | 81.6% ±7.3 pts | 60.7% |
| Renter-occupied homes | 18.4% ±7.3 pts | 39.3% |
| Housing units | 1,747 ±284 | 289,095 |
| Single-family detached homes | 91.5% ±4.6 pts | 63.4% |
| Mobile homes | 6.9% ±4.1 pts | 1.4% |
| Built 2020 or later | 0.9% ±1.6 pts | 1.4% |
| Built 2010 to 2019 | 5.2% ±4.0 pts | 8.3% |
| Built 1939 or earlier | 2.5% ±4.0 pts | 15.6% |
| Households with no vehicle | 1.2% ±1.3 pts | 9.6% |
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 Census Tract 121.04 get to work?
74.1% of Census Tract 121.04's workers drive alone. The average trip to work takes 30.2 minutes.
| Measure | Tract 121.04 | Louisville/Jefferson County |
|---|---|---|
| In the labor force (age 16+) | 62.9% ±9.8 pts | 65.6% |
| Unemployment rate | 5.1% ±5.8 pts | 5.5% |
| Drove alone to work | 74.1% ±9.0 pts | 72.3% |
| Carpooled | 13.2% ±6.8 pts | 8.7% |
| Public transportation | 0.6% ±1.0 pts | 1.8% |
| Walked | 3.9% ±4.4 pts | 2.0% |
| Worked from home | 5.5% ±3.7 pts | 13.3% |
| Mean travel time to work | 30.2 min ±4.5 | 22.5 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 121.04 compare with the other tracts in Jefferson County?
Among Jefferson County's tracts with a reliable estimate, Census Tract 121.04 ranks as shown below (1 = highest).
| Measure | In Jefferson County | In Louisville/Jefferson County |
|---|---|---|
| Population | 57th of 215 | 43rd of 90 |
| Residents per square mile | 204th of 216 | 81st of 90 |
| Median household income | 135th of 207 | 70th of 88 |
| Per capita income | 175th of 213 | 80th of 90 |
| Median home value | 170th of 205 | 86th of 90 |
| Median gross rent | 43rd of 204 | 26th of 83 |
| Poverty rate | 65th of 156 | 15th of 56 |
| Bachelor's degree or higher | 178th of 193 | 78th of 86 |
| Median age | 135th of 214 | 58th of 90 |
| Owner-occupied share | 35th of 210 | 24th of 90 |
The tracts next to it on Jefferson County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 45 | 132nd | $58,720±$21,746 · within the margin of this tract |
| Tract 126.04 | 133rd | $58,222±$7,437 · within the margin of this tract |
| Tract 82.02 | 134th | $58,000±$6,599 · within the margin of this tract |
| Tract 121.04 | 135th | $57,891±$19,106 |
| Tract 90.01 | 136th | $56,719±$7,305 · within the margin of this tract |
| Tract 91.06 | 137th | $56,344±$4,776 · within the margin of this tract |
| Tract 76.03 | 138th | $56,250±$16,758 · 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 121.04?
4 of the 18 figures for Census Tract 121.04 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.
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