Census tract · Jefferson County
Census Tract 78, Jefferson County, Kentucky
Census Tract 78, GEOID 21111007800, in Jefferson County, Kentucky, partly within St. Matthews. 3,113 residents in the ACS 2020-2024 5-year estimates (±368); the 2020 Census counted 3,157.
Residents, 2020-2024
3,113
±368 (90% margin)
2020 Census count: 3,157
Median household income
$91,071
±$21,119 (90% margin)
Jefferson County: $69,866
Median home value
$363,400
±$33,362 (90% margin)
Jefferson County: $248,400
Median gross rent
$1,107
±$101 (90% margin)
Jefferson County: $1,149
Where is Census Tract 78?
Census Tract 78 is one of 216 census tracts in Jefferson County, Kentucky. It covers 0.70 square miles of land, 4,542 residents per square mile in 2020. Its GEOID, 21111007800, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| St. Matthews | 44% |
7 census tracts border Census Tract 78: Tract 76.01 ($59,183), Tract 77 ($96,607), Tract 79 ($87,917), Tract 87 ($171,175), Tract 98 ($99,904), Tract 105 ($82,396) and Tract 106.01 ($95,641). 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 78?
The 2020-2024 American Community Survey puts Census Tract 78's population at 3,113 (±368) in 1,604 households; the 2020 Census counted 3,157 residents and 1,638 housing units.
| Measure | Tract 78 | Jefferson County |
|---|---|---|
| Total population | 3,113±368 | 783,022 |
| Households | 1,604±216 | 331,554 |
| Average household size | 1.93±0.14 | 2.32 |
| Housing units | 1,658±197 | 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 78?
The median resident of Census Tract 78 is 40.0 years old; 15.1% are under 18 and 20.8% are 65 or older. The largest group is non-Hispanic white residents at 89.5%, then non-Hispanic residents of two or more races at 4.5%. 4.4% of residents were born outside the United States.
| Measure | Tract 78 | Jefferson County |
|---|---|---|
| Median age | 40.0±3.7 | 38.4 |
| Under 18 years | 15.1%±3.1 pts | 22.3% |
| 65 years and over | 20.8%±6.0 pts | 17.2% |
| Hispanic or Latino (any race) | 2.1%±2.2 pts | 8.6% |
| White alone, not Hispanic | 89.5%±4.9 pts | 62.0% |
| Black or African American alone, not Hispanic | 3.5%±2.5 pts | 20.6% |
| Asian alone, not Hispanic | 0.4%±0.5 pts | 3.1% |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±1.2 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.2 pts | 0.0% |
| Two or more races, not Hispanic | 4.5%±3.4 pts | 5.2% |
| Some other race alone, not Hispanic | 0.0%±1.2 pts | 0.4% |
| Born outside the United States | 4.4%±2.8 pts | 10.0% |
| Speak a language other than English at home (age 5+) | 3.1%±1.8 pts | 12.9% |
| Civilian veterans (age 18+) | 3.2%±2.1 pts | 6.2% |
| With a disability | 5.8%±2.6 pts | 14.4% |
| No health insurance coverage | 2.2%±1.7 pts | 5.7% |
| High school graduate or higher (age 25+) | 99.6%±0.6 pts | 91.3% |
| Bachelor's degree or higher (age 25+) | 71.0%±7.1 pts | 37.0% |
| Graduate or professional degree (age 25+) | 23.5%±5.9 pts | 15.5% |
| Lived in the same house a year earlier | 90.1%±4.1 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 78 earn?
Half of the 1,604 households in Census Tract 78 earn less than $91,071 a year (±$21,119), against $69,866 across Jefferson County: 47th highest of the county's 207 tracts with a reliable estimate.
| Measure | Tract 78 | Jefferson County |
|---|---|---|
| Median household income | $91,071±$21,119 | $69,866 |
| Mean household income | $145,508±$31,037 | $97,866 |
| Per capita income | $75,935±$15,351 | $42,087 |
| People below the poverty line | 2.4%±1.6 pts | 14.3% |
| Children under 18 below the poverty line | 0.0%±7.7 pts | 19.8% |
| Households receiving SNAP | 5.2%±3.6 pts | 11.0% |
| Households with a computer | 99.6%±0.8 pts | 94.9% |
| Households with a broadband subscription | 99.6%±0.8 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 78?
Owners occupy 67.6% of Census Tract 78's occupied homes and renters 32.4%. The median owner-occupied home is valued at $363,400 by its owner (±$33,362). The median renter pays $1,107 a month including utilities, and 21.5% of renters pay 35% or more of their income on rent.
| Measure | Tract 78 | Jefferson County |
|---|---|---|
| Median home value (owner-occupied) | $363,400±$33,362 | $248,400 |
| Median gross rent | $1,107±$101 | $1,149 |
| Renters paying 35% or more of income on rent | 21.5%±12.3 pts | 38.5% |
| Median monthly owner costs, with a mortgage | $2,156±$328 | $1,593 |
| Owner-occupied homes | 67.6%±7.6 pts | 62.1% |
| Renter-occupied homes | 32.4%±7.6 pts | 37.9% |
| Housing units | 1,658±197 | 359,710 |
| Single-family detached homes | 79.9%±7.4 pts | 64.0% |
| Mobile homes | 0.0%±2.2 pts | 1.2% |
| Built 2020 or later | 0.0%±2.2 pts | 1.5% |
| Built 2010 to 2019 | 0.0%±2.2 pts | 7.7% |
| Built 1939 or earlier | 47.3%±8.3 pts | 13.5% |
| Households with no vehicle | 4.8%±3.0 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 Census Tract 78 get to work?
71.3% of Census Tract 78's workers drive alone and 20.9% work from home. The average trip to work takes 17.9 minutes.
| Measure | Tract 78 | Jefferson County |
|---|---|---|
| In the labor force (age 16+) | 77.5%±4.2 pts | 65.5% |
| Unemployment rate | 2.8%±3.5 pts | 5.2% |
| Drove alone to work | 71.3%±7.3 pts | 72.4% |
| Carpooled | 4.1%±3.1 pts | 8.4% |
| Public transportation | 0.6%±1.0 pts | 1.5% |
| Walked | 1.1%±1.2 pts | 1.7% |
| Worked from home | 20.9%±7.4 pts | 14.2% |
| Mean travel time to work | 17.9 min±2.0 | 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 78 compare with the other tracts in Jefferson County?
Among Jefferson County's tracts with a reliable estimate, Census Tract 78 ranks as shown below (1 = highest).
| Measure | In Jefferson County |
|---|---|
| Population | 131st of 215 |
| Residents per square mile | 69th of 216 |
| Median household income | 47th of 207 |
| Per capita income | 11th of 213 |
| Median home value | 39th of 205 |
| Median gross rent | 125th of 204 |
| Bachelor's degree or higher | 13th of 193 |
| Median age | 81st of 214 |
| Owner-occupied share | 90th of 210 |
The tracts next to it on Jefferson County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 93 | 44th | $91,995±$10,350 · within the margin of this tract |
| Tract 115.15 | 45th | $91,793±$9,349 · within the margin of this tract |
| Tract 111.12 | 46th | $91,583±$30,008 · within the margin of this tract |
| Tract 78 | 47th | $91,071±$21,119 |
| Tract 111.18 | 48th | $90,754±$10,713 · within the margin of this tract |
| Tract 111.15 | 49th | $90,156±$38,336 · within the margin of this tract |
| Tract 81 | 50th | $89,032±$10,776 · 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 78?
4 of the 18 figures for Census Tract 78 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