US Census Data

ZIP 78631 vs ZIP 78638

A side-by-side comparison of ZIP Code 78631 and ZIP Code 78638: population, income, housing, and more.

ZIP 78631 and ZIP 78638 are ZIP Code areas in Texas. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 78631 has the higher population (3,357 vs 2,064 in ZIP 78638). ZIP 78638 has the higher median household income ($82,760 vs $73,646 in ZIP 78631). ZIP 78631 has the higher median home value ($339,100 vs $301,500 in ZIP 78638).

Population, income & housing

ZIP 78631ZIP 78638
Population3,3572,064
Median age42.1 yrs43.9 yrs
Median household income$73,646$82,760
Median home value$339,100$301,500
Median gross rent$1,188$1,252
Housing units1,462875
Homeownership rate82.3%83.8%
Bachelor's degree or higher19.9%26.3%
Unemployment rate2.2%2.3%

Trends (ACS 5-year, 2019–2023)

ZIP 78631ZIP 78638
Population2,964 → 3,357 (+13.3%)2,133 → 2,064 (-3.2%)
Median household income$59,531 → $73,646 (+23.7%)$57,924 → $82,760 (+42.9%)
Median home value$227,200 → $339,100 (+49.3%)$123,000 → $301,500 (+145.1%)
Median gross rent$976 → $1,188 (+21.7%)$1,196 → $1,252 (+4.7%)

ZIP 78631

Population
2,9643,357
Median household income
$59,531$73,646
Median home value
$227,200$339,100
Median gross rent
$976$1,188

ZIP 78638

Population
2,1332,064
Median household income
$57,924$82,760
Median home value
$123,000$301,500
Median gross rent
$1,196$1,252

Age & race/ethnicity

Age distribution (share)

ZIP 78631ZIP 78638
Under 55.8%9.7%
5 to 1716.4%12.4%
18 to 245.1%8.3%
25 to 349.6%7.7%
35 to 4418.6%12.3%
45 to 545.2%13.2%
55 to 6416.3%13.7%
65 to 7416.9%13.8%
75 and over6.0%8.9%

Race & ethnicity (share)

ZIP 78631ZIP 78638
White (non-Hispanic)72.6%72.7%
Black or African American0.0%0.0%
American Indian & Alaska Native0.1%0.0%
Asian0.0%0.0%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.0%0.0%
Two or more races5.8%2.4%
Hispanic or Latino21.5%25.0%

Educational attainment (age 25+)

Share of adults 25+

ZIP 78631ZIP 78638
No high school diploma11.8%5.8%
High school graduate37.4%34.3%
Some college or associate's30.9%33.5%
Bachelor's degree9.5%17.0%
Graduate or professional degree10.4%9.3%

Commute to work

How workers get to work (share)

ZIP 78631ZIP 78638
Drove alone84.8%86.0%
Carpooled6.2%7.8%
Public transit0.0%0.0%
Walked0.0%0.4%
Bicycle0.0%0.0%
Worked from home8.9%3.5%
Other means0.0%2.2%

Housing

Units in structure (share)

ZIP 78631ZIP 78638
1-unit, detached62.4%60.9%
1-unit, attached0.0%0.0%
2 to 4 units0.0%0.0%
5 to 19 units0.0%0.0%
20 or more units0.0%0.0%
Mobile home & other37.6%39.1%

Poverty & households

ZIP 78631ZIP 78638
Poverty rate12.6%7.1%
Average household size2.912.75
Mean commute (minutes)3142
Median year structure built20021993

Full profiles

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