Williamson County TN Information


Williamson County Subdivisions

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  1. Williamson County 2018 Demographic Data
  2. Growth Rates forWilliamson County (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Tennessee Research Tools (Easy Tools & Current Data)
  3. Tennessee Data Comparison Tool - 2018 Demographics

Williamson County TN Data & Demographics (As of July 1, 2018)


Total Population 234,502
Population in Households 233,349
Population in Familes 209,722
Population in Group Qrtrs 1,153
Population Density2 403
Diversity Index3 35


Median Household Income $101,655
Average Household Income $132,748
Per Capita Income $46,755


Total Housing Units 86,371 (100%)
Owner Occupied HU 66,912 (77.5%)
Renter Occupied HU 15,415 (17.8%)
Vacant Housing Units 4,044 ( 4.7%)
Median Home Value $385,286
Average Home Value $460,489


Total Households 82,327
Average Household Size 2.83
Family Households 64,309
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population 3.04% 2.93%
Households 2.93% 2.86%
Families 2.79% 2.77%
Median Household Income   1.01%
Per Capita Income   1.77%


Williamson County TN - Peer Comparisons by Rank and Percentile

The table below compares Williamson County to the other 95 counties and county equivalents in Tennessee 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 # 6 95th
Population Density # 6 95th
Diversity Index # 20 80th
Median Household Income # 1 100th
Per Capita Income # 1 100th

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

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Tennessee Census Data Comparison Tool

Compare Tennessee July 1, 2018 Data
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