Williamson County TN Information


Williamson County Subdivisions

Williamson County TN Data & Demographics (As of July 1, 2017)


Total Population 223,302
Population in Households 222,149
Population in Familes 199,034
Population in Group Qrtrs 1,153
Population Density1 383
Diversity Index2 30


Total Households 78,499
Average Household Size 2.83
Family Households 61,495
Average Family Size 3


Total Housing Units 82,649 (100%)
Owner Occupied HU 62,457 (75.6%)
Renter Occupied HU 16,042 (19.4%)
Vacant Housing Units 4,150 ( 5.0%)
Median Home Value $373,111
Average Home Value $434,891


Median Household Income $100,102
Average Household Income $132,655
Per Capita Income $46,791
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 2.77% 2.75%
Households 2.66% 2.68%
Families 2.55% 2.6%
Median Household Income   0.81%
Per Capita Income   1.82%
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.


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, 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 # 6 95th
Population Density1 # 9 92nd
Diversity Index2 # 26 74th
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.