San Diego, TX Profile: Facts, Map & Data


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San Diego, Texas - Basic Facts

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The City of San Diego had a population of 4,538 as of July 1, 2017. San Diego ranks in the upper quartile for Population Density and the lower quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Texas. See peer rankings below.

The primary coordinate point for San Diego is located at latitude 27.7609 and longitude -98.2389 in Duval County. The formal boundaries for the City of San Diego (see map below) encompass a land area of 1.9 sq. miles and a water area of 0 sq. miles. Duval County is in the Central time zone (GMT -6). The elevation is 308 feet.

While the primary coordinates for City of San Diego are located in Duval County, it should be noted that the formal boundaries for this community also extend into and Jim Wells County.

The City of San Diego (GNIS ID: 2411783) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Texas is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of San Diego is located within San Diego Division of Duval County.

Beneath the boundary map are tables with San Diego population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

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.


City of San Diego, TX Boundary Map

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Boundary Maps: San Diego Division | Duval County | Texas Counties

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


Total Population 4,538
Daytime Population: Workers 966
Daytime Population: Residents 3,400
Total Daytime Population (TDP) 4,366
Ratio TDP/Total Population1 0.96
Population in Households 4,449
Population in Familes 3,826
Population in Group Qrtrs 89
Population Density2 2,387
Diversity Index3 32


Median Household Income $34,758
Average Household Income $47,896
Per Capita Income $16,341


Total Housing Units 1,871 (100%)
Owner Occupied HU 1,031 (55.1%)
Renter Occupied HU 471 (25.2%)
Vacant Housing Units 369 (19.7%)
Median Home Value $56,119
Average Home Value $82,202


Total Households 1,502
Average Household Size 2.96
Family Households 1,089
Average Family Size 4
  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 0.15% -0.07%
Households 0.06% -0.15%
Families -0.26% -0.17%
Median Household Income   0.96%
Per Capita Income   1.94%

San Diego, TX - Peer Comparisons by Rank and Percentile

The table below compares San Diego to the other 1,749 incorporated cities, towns and CDPs 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 # 434 75th
Population Density # 244 86th
Diversity Index # 1348 23rd
Median Household Income # 1425 19th
Per Capita Income # 1427 18th

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

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