Katy, TX Profile: Facts & Data


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Katy, Texas - Basic Facts

The City of Katy had a population of 17,126 as of July 1, 2018. Katy ranks in the upper quartile for Population Density and 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 Katy is located at latitude 29.7914 and longitude -95.827 in Harris County. The formal boundaries for the City of Katy (see map below) encompass a land area of 11.26 sq. miles and a water area of 0.04 sq. miles. Harris County is in the Central time zone (GMT -6). The elevation is 138 feet.

While the primary coordinates for City of Katy are located in Harris County, it should be noted that the formal boundaries for this community also extend into Fort Bend County, and Waller County.

The City of Katy (GNIS ID: 2410166) 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 Katy is located within Houston Division of Harris County.

Beneath the boundary map are tables with Katy population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

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Katy, TX Data & Demographics (As of July 1, 2018)


Total Population 17,126
Population in Households 17,066
Population in Familes 15,497
Population in Group Qrtrs 60
Population Density1 1,522
Diversity Index2 69


Median Household Income $87,329
Average Household Income $112,266
Per Capita Income $35,285


Total Housing Units 5,864 (100%)
Owner Occupied HU 4,636 (79.1%)
Renter Occupied HU 1,110 (18.9%)
Vacant Housing Units 119 ( 2.0%)
Median Home Value $234,859
Average Home Value $285,275


Total Households 5,745
Average Household Size 2.97
Family Households 4,757
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. 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 2.38% 2.36%
Households 2.33% 2.36%
Families 3.03% 2.39%
Median Household Income   2.32%
Per Capita Income   2.65%

Katy, TX - Peer Comparisons by Rank and Percentile

The table below compares Katy to the other 1,749 incorporated cities, towns and CDPs in Texas by rank and percentile using July 1, 2018 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 # 170 90th
Population Density # 444 75th
Diversity Index # 323 81st
Median Household Income # 133 92nd
Per Capita Income # 242 86th

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

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