Austin, TX 78731 ZIP Code Profile

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Austin, TX

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ZIP Code 78731: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Austin, TX 78731

Not Acceptable, USPS
Camp Mabry, TX 78731

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 1,222
  • Single Family Addresses: 8,367
  • Multi-Family Addresses: 4,849
  • County: Travis County
  • Centroid: Latitude 30.346, Longitude -97.766
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


78731 ZIP Code Map

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Austin, TX 78731 Data & Demographics (As of July 1, 2017)


Total Population 27,409
Daytime Population: Workers 21,068
Daytime Population: Residents 13,096
Total Daytime Population (TDP) 34,164
Ratio TDP/Total Population1 1.25
Population in Households 27,256
Population in Familes 18,292
Population in Group Qrtrs 153
Population Density2 2,897
Diversity Index3 39


Median Household Income $90,543
Average Household Income $142,472
Per Capita Income $70,429


Total Housing Units 14,455 (100%)
Owner Occupied HU 7,470 (51.7%)
Renter Occupied HU 6,036 (41.8%)
Vacant Housing Units 949 ( 6.6%)
Median Home Value $499,521
Average Home Value $560,388


Total Households 13,506
Average Household Size 2.02
Family Households 6,590
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.04% 1.18%
Households 1.11% 1.26%
Families 0.77% 0.91%
Median Household Income   1.7%
Per Capita Income   1.63%

Austin, TX 78731 - Peer Comparisons by Rank and Percentile

The table below compares 78731 to the other 1,848 ZIP Codes in Texas by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 405 78th
Population Density # 300 84th
Diversity Index # 1460 21st
Median Household Income # 108 94th
Per Capita Income # 25 99th

Additional comparisons and rankings can be made with a VERY EASY TO USE Texas Census Data Comparison Tool.

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