Census tract · Travis County
Census Tract 21.10, Travis County, Texas
Census Tract 21.10, GEOID 48453002110, in Travis County, Texas, entirely within Austin. 3,920 residents in the ACS 2020-2024 5-year estimates (±580); the 2020 Census counted 4,278.
Residents, 2020-2024
3,920
±580 (90% margin)
2020 Census count: 4,278
Median household income
$123,798
±$31,308 (90% margin)
Travis County: $99,611
Median home value
$524,800
±$65,742 (90% margin)
Travis County: $523,000
Median gross rent
$2,123
±$565 (90% margin)
Travis County: $1,744
Where is Census Tract 21.10?
Census Tract 21.10 is one of 290 census tracts in Travis County, Texas. It covers 1.40 square miles of land, 3,064 residents per square mile in 2020. Its GEOID, 48453002110, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Austin | 100% |
4 census tracts border Census Tract 21.10: Tract 21.08 ($89,299), Tract 21.09 ($97,500), Tract 21.11 ($91,658) and Tract 22.14 ($85,199). 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 21.10?
The 2020-2024 American Community Survey puts Census Tract 21.10's population at 3,920 (±580) in 1,635 households; the 2020 Census counted 4,278 residents and 1,682 housing units.
| Measure | Tract 21.10 | Austin |
|---|---|---|
| Total population | 3,920±580 | 979,539 |
| Households | 1,635±195 | 456,113 |
| Average household size | 2.31±0.21 | 2.10 |
| Housing units | 1,707±174 | 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 21.10?
The median resident of Census Tract 21.10 is 33.5 years old; 23.9% are under 18 and 6.9% are 65 or older. The largest group is non-Hispanic white residents at 40.3%, then Hispanic or Latino residents (of any race) at 30.9%. 13.3% of residents were born outside the United States.
| Measure | Tract 21.10 | Austin |
|---|---|---|
| Median age | 33.5±2.1 | 34.7 |
| Under 18 years | 23.9%±5.7 pts | 18.0% |
| 65 years and over | 6.9%±2.3 pts | 10.4% |
| Hispanic or Latino (any race) | 30.9%±13.0 pts | 31.9% |
| White alone, not Hispanic | 40.3%±7.2 pts | 47.0% |
| Black or African American alone, not Hispanic | 17.7%±11.5 pts | 7.3% |
| Asian alone, not Hispanic | 3.4%±2.1 pts | 9.0% |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±1.3 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.3 pts | 0.0% |
| Two or more races, not Hispanic | 5.7%±5.5 pts | 4.3% |
| Some other race alone, not Hispanic | 2.0%±3.2 pts | 0.5% |
| Born outside the United States | 13.3%±7.4 pts | 18.7% |
| Speak a language other than English at home (age 5+) | 27.2%±12.7 pts | 30.3% |
| Civilian veterans (age 18+) | 3.5%±2.2 pts | 3.8% |
| With a disability | 16.9%±7.6 pts | 9.7% |
| No health insurance coverage | 16.9%±8.3 pts | 12.4% |
| High school graduate or higher (age 25+) | 88.4%±5.7 pts | 92.3% |
| Bachelor's degree or higher (age 25+) | 57.0%±8.0 pts | 59.6% |
| Graduate or professional degree (age 25+) | 14.5%±5.8 pts | 23.0% |
| Lived in the same house a year earlier | 72.8%±8.1 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 21.10 earn?
Half of the 1,635 households in Census Tract 21.10 earn less than $123,798 a year (±$31,308), against $99,611 across Travis County: 81st highest of the county's 283 tracts with a reliable estimate. 16.0% of residents live below the poverty line.
| Measure | Tract 21.10 | Austin |
|---|---|---|
| Median household income | $123,798±$31,308 | $93,658 |
| Mean household income | $159,582±$31,094 | $135,028 |
| Per capita income | $65,625±$13,380 | $62,862 |
| People below the poverty line | 16.0%±9.5 pts | 12.0% |
| Children under 18 below the poverty line | 25.2%±24.1 pts | 15.1% |
| Households receiving SNAP | 13.0%±6.9 pts | 5.7% |
| Households with a computer | 97.4%±2.2 pts | 98.0% |
| Households with a broadband subscription | 87.0%±7.4 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 21.10?
Owners occupy 72.3% of Census Tract 21.10's occupied homes and renters 27.7%. The median owner-occupied home is valued at $524,800 by its owner (±$65,742). The median renter pays $2,123 a month including utilities, and 51.9% of renters pay 35% or more of their income on rent.
| Measure | Tract 21.10 | Austin |
|---|---|---|
| Median home value (owner-occupied) | $524,800±$65,742 | $555,300 |
| Median gross rent | $2,123±$565 | $1,729 |
| Renters paying 35% or more of income on rent | 51.9%±24.0 pts | 38.6% |
| Median monthly owner costs, with a mortgage | $2,868±$756 | $2,679 |
| Owner-occupied homes | 72.3%±10.1 pts | 43.4% |
| Renter-occupied homes | 27.7%±10.1 pts | 56.6% |
| Housing units | 1,707±174 | 483,071 |
| Single-family detached homes | 80.7%±6.8 pts | 43.4% |
| Mobile homes | 1.0%±2.3 pts | 1.3% |
| Built 2020 or later | 11.7%±8.7 pts | 4.8% |
| Built 2010 to 2019 | 24.5%±11.0 pts | 21.4% |
| Built 1939 or earlier | 7.0%±5.6 pts | 2.2% |
| Households with no vehicle | 6.6%±6.0 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 21.10 get to work?
48.8% of Census Tract 21.10's workers drive alone and 37.8% work from home. The average trip to work takes 24.6 minutes.
| Measure | Tract 21.10 | Austin |
|---|---|---|
| In the labor force (age 16+) | 80.8%±4.8 pts | 75.2% |
| Unemployment rate | 5.2%±3.5 pts | 4.7% |
| Drove alone to work | 48.8%±8.2 pts | 56.0% |
| Carpooled | 7.4%±4.0 pts | 6.4% |
| Public transportation | 1.6%±1.8 pts | 2.0% |
| Walked | 0.8%±1.2 pts | 2.5% |
| Worked from home | 37.8%±8.4 pts | 30.7% |
| Mean travel time to work | 24.6 min±3.2 | 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 21.10 compare with the other tracts in Travis County?
Among Travis County's tracts with a reliable estimate, Census Tract 21.10 ranks as shown below (1 = highest).
| Measure | In Travis County | In Austin |
|---|---|---|
| Population | 167th of 289 | 142nd of 238 |
| Residents per square mile | 173rd of 290 | 167th of 239 |
| Median household income | 81st of 283 | 55th of 232 |
| Per capita income | 117th of 288 | 96th of 237 |
| Median home value | 136th of 265 | 118th of 217 |
| Median gross rent | 56th of 263 | 39th of 229 |
| Poverty rate | 49th of 151 | 46th of 135 |
| Bachelor's degree or higher | 148th of 285 | 131st of 234 |
| Median age | 208th of 289 | 161st of 238 |
| Owner-occupied share | 96th of 271 | 53rd of 221 |
The tracts next to it on Travis County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 353 | 78th | $124,722±$37,310 · within the margin of this tract |
| Tract 13.11 | 79th | $124,453±$41,303 · within the margin of this tract |
| Tract 356 | 80th | $124,327±$30,489 · within the margin of this tract |
| Tract 21.10 | 81st | $123,798±$31,308 |
| Tract 428 | 82nd | $123,696±$18,516 · within the margin of this tract |
| Tract 417 | 83rd | $123,036±$26,361 · within the margin of this tract |
| Tract 445 | 84th | $122,701±$49,719 · 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 21.10?
Every figure for Census Tract 21.10 on this page has a coefficient of variation under 40%, the Census Bureau's threshold for a usable estimate.
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