Population 120 · Census ACS 2020–24
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Population and households in ZIP 78021
Household size in ZIP 78021
| Period | ZIP 78021 | Texas | U.S. |
|---|---|---|---|
| 2006–10 | 2.97 | 2.87 | 2.68 |
| 2010–14 | 2.85 | 2.93 | 2.73 |
| 2015–19 | 2.78 | 2.95 | 2.71 |
| 2020–24 | 2.65 | 2.83 | 2.65 |
| Change | −0.32 | −0.05 | −0.03 |
At 2.65 people per household, ZIP 78021 sits right at the national average. The typical household here is smaller than in Texas overall, where it has 2.83 people. Household size has dropped from 2.97 in 2006–10, but in a place this small, survey estimates can swing a lot from one release to the next.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in ZIP 78021
| Period | ZIP 78021 | Texas | U.S. |
|---|---|---|---|
| 2006–10 | 32.5 | 34.7 | 37.7 |
| 2010–14 | 33.3 | 35.4 | 38.6 |
| 2015–19 | 43.1 | 36.1 | 39.6 |
| 2020–24 | 37.5 | 36.7 | 40.1 |
| Change | +5.0 | +2.0 | +2.3 |
ZIP 78021 is a little younger than the country as a whole: its median age is 37.5, against 40.1 nationally. Texas as a whole looks much the same.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in ZIP 78021
| Period | ZIP 78021 | Texas | U.S. |
|---|---|---|---|
| 2006–10 | 12.6% | 13.7% | 12.3% |
| 2010–14 | 10.4% | 13.7% | 12.3% |
| 2015–19 | 11.0% | 13.1% | 11.6% |
| 2020–24 | 11.1% | 12.9% | 11.6% |
| Change | −1.6 pts | −0.8 pts | −0.6 pts |
Single parents head just over one in ten households in ZIP 78021 (11.1%), close to the national share of 11.6%. Single parents are less common here than in Texas overall (12.9%).
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in ZIP 78021
Renters in ZIP 78021
| Period | ZIP 78021 | Texas | U.S. |
|---|---|---|---|
| 2006–10 | 32.8% | 35.2% | 33.3% |
| 2010–14 | 25.5% | 37.3% | 35.6% |
| 2015–19 | 43.2% | 38.0% | 36.0% |
| 2020–24 | 19.5% | 37.4% | 34.8% |
| Change | −13.3 pts | +2.3 pts | +1.5 pts |
Only 19.5% of households in ZIP 78021 rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. About eight in ten owners (79.8%) have paid off their mortgages, well above the national share of 39.8%.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in ZIP 78021
| Period | ZIP 78021 | Texas | U.S. |
|---|---|---|---|
| 2006–10 | 35.3% | 11.8% | 11.4% |
| 2010–14 | 34.1% | 10.9% | 11.4% |
| 2015–19 | 47.7% | 10.9% | 11.1% |
| 2020–24 | 45.0% | 9.4% | 9.6% |
| Change | +9.7 pts | −2.4 pts | −1.8 pts |
Vacant homes make up 45.0% of the housing in ZIP 78021, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in ZIP 78021
| Period | ZIP 78021 | Texas | U.S. |
|---|---|---|---|
| 2006–10 | 1981 | 1983 | 1974 |
| 2010–14 | 1986 | 1985 | 1975 |
| 2015–19 | 1988 | 1987 | 1977 |
| 2020–24 | 1987 | 1992 | 1980 |
| Change | +6 | +8 | +6 |
Homes in ZIP 78021 are newer than the national norm: the median home was built in 1987, versus 1980 across the U.S. Still, homes here are older than in Texas overall, where the median home dates to 1992.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in ZIP 78021
| Period | ZIP 78021 | Texas | U.S. |
|---|---|---|---|
| 2006–10 | $764 | $921 | $965 |
| 2010–14 | $434 | $1,005 | $1,040 |
| 2015–19 | $669 | $1,178 | $1,213 |
| 2020–24 | $812 | $1,560 | $1,571 |
| Change | +$48 | +$639 | +$606 |
The median renter in ZIP 78021 pays $812 a month for rent and utilities, well below the national median of $1,571. Rent takes 36.2% of the typical renter's income, well over the 30% mark often used to define affordable rent, so many renters here are stretched.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in ZIP 78021
Bachelor's degrees in ZIP 78021
| Period | ZIP 78021 | Texas | U.S. |
|---|---|---|---|
| 2006–10 | 8.8% | 27.0% | 28.4% |
| 2010–14 | 16.0% | 27.9% | 29.6% |
| 2015–19 | 11.0% | 30.0% | 32.1% |
| 2020–24 | 20.5% | 34.0% | 35.6% |
| Change | +11.7 pts | +7.1 pts | +7.2 pts |
Fewer adults in ZIP 78021 have a four-year degree than in the country as a whole: 20.5%, against 35.6% nationally.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in ZIP 78021
| Period | ZIP 78021 | Texas | U.S. |
|---|---|---|---|
| 2006–10 | 67.3% | 80.7% | 84.9% |
| 2010–14 | 68.8% | 82.0% | 86.1% |
| 2015–19 | 71.1% | 83.6% | 87.7% |
| 2020–24 | 94.9% | 85.8% | 89.3% |
| Change | +27.6 pts | +5.1 pts | +4.3 pts |
High school completion is high in ZIP 78021: 94.9% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in ZIP 78021
| Period | ZIP 78021 | Texas | U.S. |
|---|---|---|---|
| 2006–10 | 10.0% | 7.0% | 8.1% |
| 2010–14 | 5.0% | 7.7% | 9.4% |
| 2015–19 | 1.0% | 5.1% | 5.6% |
| 2020–24 | 0.0% | 5.3% | 5.4% |
| Change | −10.0 pts | −1.7 pts | −2.7 pts |
The survey found almost no one in ZIP 78021 out of work and looking, against 5.4% of the labor force nationally. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
ZIP 78021 compared with nearby ZIP codes
| ZIP code | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| ZIP 78021 | 2.65 | 37.5 | 11.1% | 19.5% | 45.0% | 1987 | $812 | 20.5% | 94.9% | 0.0% |
| ZIP 78072 | 3.38 | 31.8 | 35.7% | 21.7% | 40.5% | 1986 | $758 | 20.1% | 85.6% | 0.0% |
| ZIP 78014 | 3.72 | 32.9 | 22.9% | 26.6% | 29.3% | 1981 | $826 | 15.2% | 73.8% | 2.7% |
| ZIP 78007 | 3.38 | 31.8 | 35.7% | 21.7% | 40.5% | 1986 | $758 | 20.1% | 85.6% | 0.0% |
| ZIP 78071 | 2.08 | 44.2 | 9.0% | 36.0% | 24.3% | 1990 | $832 | 9.3% | 71.5% | 4.2% |
| ZIP 78060 | 1.73 | 58.7 | 3.1% | 48.0% | 19.4% | 1983 | $439 | 12.2% | 85.2% | 3.5% |
| ZIP 78830 | 2.88 | 36.6 | 7.2% | 43.4% | 34.6% | 1991 | $256 | 6.1% | 48.8% | 13.2% |
| ZIP 78022 | 2.57 | 40.8 | 11.3% | 30.3% | 21.9% | 1989 | $981 | 13.0% | 80.6% | 6.6% |
| ZIP 78836 | 2.88 | 36.6 | 7.2% | 43.4% | 34.6% | 1991 | $256 | 6.1% | 48.8% | 13.2% |
| ZIP 78125 | 2.51 | 35.7 | 4.6% | 18.0% | 26.4% | 1975 | $587 | 18.9% | 89.9% | 3.9% |
| ZIP 78827 | 2.27 | 51.4 | 12.6% | 30.8% | 31.9% | 1984 | $413 | 6.5% | 53.8% | 13.0% |
All figures 2020–24.
Zip codes with similar populations: 77453, TX · 46931, IN · 46946, IN · 46998, IN · 47160, IN · 47683, IN · 47924, IN · 49852, MI · 49883, MI · 58216, ND
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up ZIP 78021. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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