San Ygnacio, TX Profile: Facts, Map & Data


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San Ygnacio, Texas - Basic Facts

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The San Ygnacio Census Designated Place had a population of 681 as of July 1, 2016. San Ygnacio ranks in 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 Ygnacio is located at latitude 27.0532 and longitude -99.4237 in Zapata County. The formal boundaries for the San Ygnacio Census Designated Place (see map below) encompass a land area of 1.52 sq. miles and a water area of 0.13 sq. miles. Zapata County is in the Central time zone (GMT -6). The elevation is 322 feet.

The San Ygnacio Census Designated Place (GNIS ID: 2409267) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

Texas is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The San Ygnacio Census Designated Place is located within San Ygnacio Division of Zapata County.

Beneath the boundary map are tables with San Ygnacio population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

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San Ygnacio Census Designated Place, TX Boundary Map

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Boundary Maps: San Ygnacio Division | Zapata County | Texas Counties

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San Ygnacio, TX Data & Demographics (As of July 1, 2016)


Total Population 681
Population in Households 681
Population in Familes 621
Population in Group Qrtrs 0
Population Density1 447
Diversity Index2 21


Total Households 227
Average Household Size 3.0
Family Households 178
Average Family Size 3


Total Housing Units 367 (100%)
Owner Occupied HU 175 (47.7%)
Renter Occupied HU 52 (14.2%)
Vacant Housing Units 140 (38.1%)
Median Home Value $70,455
Average Home Value $140,057


Median Household Income $30,074
Average Household Income $40,583
Per Capita Income $13,381
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.33% 0.32%
Households 0.14% 0.18%
Families 0.09% 0.11%
Median Household Income   3.16%
Per Capita Income   1.4%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

San Ygnacio, TX - Peer Comparisons by Rank and Percentile

The table below compares San Ygnacio to the other 1,749 incorporated cities, towns and CDPs in Texas by rank and percentile using July 1, 2016 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 # 1139 35th
Population Density1 # 1224 30th
Diversity Index2 # 1579 10th
Median Household Income # 1538 12th
Per Capita Income # 1524 13th

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

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