Williamson County Population 2018

Williamson County's estimated population is 226,257 with a growth rate of 3.37% in the past year according to the most recent United States census data. Williamson County is the 6th largest county in Tennessee.

Year Population Growth Growth Rate
2017226,2577,3693.37%
2016218,8887,4323.51%
2015211,4566,2433.04%
2014205,2136,2223.13%
2013198,9915,9183.07%
2012193,0734,6782.48%
2011188,3954,2652.32%
2010184,130103,109127.26%
199081,02122,91339.43%
198058,10823,77869.26%
197034,3309,06335.87%
196025,2679603.95%
195024,307-913-3.62%
194025,2202,37510.40%
193022,845-564-2.41%
192023,409-804-3.32%
191024,213-2,216-8.38%
190026,4291080.41%
189026,321-1,992-7.04%
188028,3132,98511.79%
187025,3281,5016.30%
186023,827-3,374-12.40%
185027,2011950.72%
184027,0063681.38%
183026,6385,99829.06%
182020,6407,48756.92%
181013,15310,285358.61%
18002,8680.00%

Williamson County Population Growth

Population Data via

Williamson County Race Data

Race Population Percentage
White190,12884.03%
Black or African American9,2524.09%
Asian8,3813.70%
Two or More Races3,2801.45%
American Indian and Alaska Native5030.22%
Native Hawaiian and Other Pacific Islander1300.06%

Williamson County Population Pyramid

0k2k4k6k8k10k Male Population0k2k4k6k8k10k Female Population8580757065605550454035302520151050
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990