Census tract · Travis County
Census Tract 21.04, Travis County, Texas
Census Tract 21.04, GEOID 48453002104, in Travis County, Texas, entirely within Austin. 2,625 residents in the ACS 2020-2024 5-year estimates (±452); the 2020 Census counted 2,707.
Residents, 2020-2024
2,625
±452 (90% margin)
2020 Census count: 2,707
Median household income
$135,833
±$38,587 (90% margin)
Travis County: $99,611
Median home value
$526,100
±$72,246 (90% margin)
Travis County: $523,000
Median gross rent
$1,934
±$158 (90% margin)
Travis County: $1,744
Where is Census Tract 21.04?
Census Tract 21.04 is one of 290 census tracts in Travis County, Texas. It covers 0.48 square miles of land, 5,663 residents per square mile in 2020. Its GEOID, 48453002104, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Austin | 100% |
4 census tracts border Census Tract 21.04: Tract 21.05 ($68,649), Tract 21.06 ($87,000), Tract 21.12 ($83,750) and Tract 402 ($46,623). 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 21.04?
The 2020-2024 American Community Survey puts Census Tract 21.04's population at 2,625 (±452) in 1,208 households; the 2020 Census counted 2,707 residents and 1,203 housing units.
| Measure | Tract 21.04 | Austin |
|---|---|---|
| Total population | 2,625±452 | 979,539 |
| Households | 1,208±132 | 456,113 |
| Average household size | 2.17±0.24 | 2.10 |
| Housing units | 1,246±145 | 483,071 |
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 21.04?
The median resident of Census Tract 21.04 is 38.6 years old; 19.8% are under 18 and 8.8% are 65 or older. The largest group is non-Hispanic white residents at 62.9%, then Hispanic or Latino residents (of any race) at 30.4%.
| Measure | Tract 21.04 | Austin |
|---|---|---|
| Median age | 38.6±2.8 | 34.7 |
| Under 18 years | 19.8%±3.5 pts | 18.0% |
| 65 years and over | 8.8%±2.3 pts | 10.4% |
| Hispanic or Latino (any race) | 30.4%±13.1 pts | 31.9% |
| White alone, not Hispanic | 62.9%±13.1 pts | 47.0% |
| Black or African American alone, not Hispanic | 3.4%±3.2 pts | 7.3% |
| Asian alone, not Hispanic | 0.9%±1.1 pts | 9.0% |
| American Indian and Alaska Native alone, not Hispanic | 0.3%±0.4 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.9 pts | 0.0% |
| Two or more races, not Hispanic | 1.9%±1.9 pts | 4.3% |
| Some other race alone, not Hispanic | 0.2%±0.4 pts | 0.5% |
| Born outside the United States | 6.5%±4.9 pts | 18.7% |
| Speak a language other than English at home (age 5+) | 24.1%±9.8 pts | 30.3% |
| Civilian veterans (age 18+) | 2.1%±2.3 pts | 3.8% |
| With a disability | 11.2%±4.3 pts | 9.7% |
| No health insurance coverage | 7.3%±3.9 pts | 12.4% |
| High school graduate or higher (age 25+) | 99.1%±1.1 pts | 92.3% |
| Bachelor's degree or higher (age 25+) | 70.5%±10.6 pts | 59.6% |
| Graduate or professional degree (age 25+) | 36.4%±12.0 pts | 23.0% |
| Lived in the same house a year earlier | 88.4%±7.0 pts | 78.8% |
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 21.04 earn?
Half of the 1,208 households in Census Tract 21.04 earn less than $135,833 a year (±$38,587), against $99,611 across Travis County: 62nd highest of the county's 283 tracts with a reliable estimate. 5.1% of residents live below the poverty line.
| Measure | Tract 21.04 | Austin |
|---|---|---|
| Median household income | $135,833±$38,587 | $93,658 |
| Mean household income | $149,085±$21,244 | $135,028 |
| Per capita income | $69,847±$8,648 | $62,862 |
| People below the poverty line | 5.1%±3.3 pts | 12.0% |
| Children under 18 below the poverty line | 0.0%±9.1 pts | 15.1% |
| Households receiving SNAP | 0.0%±4.1 pts | 5.7% |
| Households with a computer | 99.3%±1.0 pts | 98.0% |
| Households with a broadband subscription | 96.9%±2.4 pts | 93.8% |
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 21.04?
Owners occupy 54.3% of Census Tract 21.04's occupied homes and renters 45.7%. The median owner-occupied home is valued at $526,100 by its owner (±$72,246). The median renter pays $1,934 a month including utilities, and 19.7% of renters pay 35% or more of their income on rent.
| Measure | Tract 21.04 | Austin |
|---|---|---|
| Median home value (owner-occupied) | $526,100±$72,246 | $555,300 |
| Median gross rent | $1,934±$158 | $1,729 |
| Renters paying 35% or more of income on rent | 19.7%±10.4 pts | 38.6% |
| Median monthly owner costs, with a mortgage | $2,346±$289 | $2,679 |
| Owner-occupied homes | 54.3%±8.2 pts | 43.4% |
| Renter-occupied homes | 45.7%±8.2 pts | 56.6% |
| Housing units | 1,246±145 | 483,071 |
| Single-family detached homes | 61.7%±8.2 pts | 43.4% |
| Mobile homes | 0.4%±0.6 pts | 1.3% |
| Built 2020 or later | 3.0%±4.4 pts | 4.8% |
| Built 2010 to 2019 | 0.6%±1.0 pts | 21.4% |
| Built 1939 or earlier | 1.4%±2.2 pts | 2.2% |
| Households with no vehicle | 1.1%±1.1 pts | 7.1% |
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 21.04 get to work?
53.8% of Census Tract 21.04's workers drive alone and 37.6% work from home. The average trip to work takes 19.5 minutes.
| Measure | Tract 21.04 | Austin |
|---|---|---|
| In the labor force (age 16+) | 85.7%±4.3 pts | 75.2% |
| Unemployment rate | 4.4%±3.6 pts | 4.7% |
| Drove alone to work | 53.8%±8.1 pts | 56.0% |
| Carpooled | 4.6%±4.2 pts | 6.4% |
| Public transportation | 0.3%±0.5 pts | 2.0% |
| Walked | 0.4%±0.6 pts | 2.5% |
| Worked from home | 37.6%±7.9 pts | 30.7% |
| Mean travel time to work | 19.5 min±2.7 | 23.7 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 21.04 compare with the other tracts in Travis County?
Among Travis County's tracts with a reliable estimate, Census Tract 21.04 ranks as shown below (1 = highest).
| Measure | In Travis County | In Austin |
|---|---|---|
| Population | 250th of 289 | 208th of 238 |
| Residents per square mile | 75th of 290 | 72nd of 239 |
| Median household income | 62nd of 283 | 41st of 232 |
| Per capita income | 95th of 288 | 75th of 237 |
| Median home value | 135th of 265 | 117th of 217 |
| Median gross rent | 82nd of 263 | 58th of 229 |
| Poverty rate | 134th of 151 | 123rd of 135 |
| Bachelor's degree or higher | 86th of 285 | 75th of 234 |
| Median age | 102nd of 289 | 72nd of 238 |
| Owner-occupied share | 141st of 271 | 92nd of 221 |
The tracts next to it on Travis County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 24.32 | 59th | $137,106±$27,855 · within the margin of this tract |
| Tract 16.05 | 60th | $136,250±$39,543 · within the margin of this tract |
| Tract 21.13 | 61st | $136,000±$33,592 · within the margin of this tract |
| Tract 21.04 | 62nd | $135,833±$38,587 |
| Tract 372 | 63rd | $134,623±$19,864 · within the margin of this tract |
| Tract 466 | 64th | $133,787±$13,645 · within the margin of this tract |
| Tract 352 | 65th | $132,500±$26,230 · 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 21.04?
2 of the 18 figures for Census Tract 21.04 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