San Antonio, TX 78251 ZIP Code Profile

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San Antonio, TX

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ZIP Code 78251: Basic Data & USPS Preferred City Name

Preferred Name, USPS
San Antonio, TX 78251

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 917
  • Single Family Addresses: 13,429
  • Multi-Family Addresses: 7,827
  • County: Bexar County
  • Centroid: Latitude 29.46, Longitude -98.669
  • 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.


78251 ZIP Code Map

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San Antonio, TX 78251 Data & Demographics (As of July 1, 2017)


Total Population 54,813
Daytime Population: Workers 18,983
Daytime Population: Residents 25,936
Total Daytime Population (TDP) 44,919
Ratio TDP/Total Population1 0.82
Population in Households 54,801
Population in Familes 46,017
Population in Group Qrtrs 12
Population Density2 3,744
Diversity Index3 76


Median Household Income $62,118
Average Household Income $76,046
Per Capita Income $27,282


Total Housing Units 20,397 (100%)
Owner Occupied HU 10,813 (53.0%)
Renter Occupied HU 8,845 (43.4%)
Vacant Housing Units 739 ( 3.6%)
Median Home Value $173,504
Average Home Value $192,456


Total Households 19,658
Average Household Size 2.79
Family Households 13,645
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 1.88% 1.74%
Households 1.85% 1.8%
Families 1.65% 1.62%
Median Household Income   1.98%
Per Capita Income   2.56%

San Antonio, TX 78251 - Peer Comparisons by Rank and Percentile

The table below compares 78251 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 # 88 95th
Population Density # 211 89th
Diversity Index # 259 86th
Median Household Income # 415 78th
Per Capita Income # 794 57th

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

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