Iola, TX 77861 ZIP Code Profile

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Iola, TX

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ZIP Code 77861: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Iola, TX 77861

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 38
  • Single Family Addresses: 898
  • Multi-Family Addresses: 0
  • County: Grimes County
  • Centroid: Latitude 30.676, Longitude -96.131
  • 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.


77861 ZIP Code Map

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Iola, TX 77861 Data & Demographics (As of July 1, 2016)


Total Population 2,764
Population in Households 2,764
Population in Familes 2,394
Population in Group Qrtrs 0
Population Density1 26
Diversity Index2 37


Total Households 1,036
Average Household Size 2.67
Family Households 789
Average Family Size 3


Total Housing Units 1,308 (100%)
Owner Occupied HU 855 (65.4%)
Renter Occupied HU 181 (13.8%)
Vacant Housing Units 272 (20.8%)
Median Home Value $130,705
Average Home Value $169,854


Median Household Income $65,602
Average Household Income $75,945
Per Capita Income $28,466
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 2.08% 1.63%
Households 2.22% 1.75%
Families 2.14% 1.69%
Median Household Income   2.13%
Per Capita Income   1.76%
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.

Iola, TX 77861 - Peer Comparisons by Rank and Percentile

The table below compares 77861 to the other 1,873 ZIP Codes 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 # 1188 37th
Population Density1 # 1256 33rd
Diversity Index2 # 1512 19th
Median Household Income # 298 84th
Per Capita Income # 577 69th

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

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