Chester County Population 2018

Chester County's estimated population is 519,293 with a growth rate of 0.54% in the past year according to the most recent United States census data. Chester County is the 7th largest county in Pennsylvania.

Year Population Growth Growth Rate
2017519,2932,8040.54%
2016516,4891,2630.25%
2015515,2262,3620.46%
2014512,8643,4760.68%
2013509,3883,1050.61%
2012506,2832,8790.57%
2011503,4043,4840.70%
2010499,920123,52432.82%
1990376,39659,73618.86%
1980316,66038,34913.78%
1970278,31167,70332.15%
1960210,60851,46732.34%
1950159,14123,51517.34%
1940135,6268,9977.11%
1930126,62911,50910.00%
1920115,1205,9075.41%
1910109,21313,51814.13%
190095,6956,3187.07%
189089,3775,8967.06%
188083,4815,6767.30%
187077,8053,2274.33%
186074,5788,14012.25%
185066,4388,92315.51%
184057,5156,60512.97%
183050,9106,45914.53%
182044,4514,85512.26%
181039,5967,50323.38%
180032,0934,15614.88%
179027,9370.00%

Chester County Population Growth

Population Data via

Chester County Race Data

Race Population Percentage
White445,63285.82%
Black or African American32,5866.28%
Asian25,9785.00%
Two or More Races9,3071.79%
American Indian and Alaska Native1,4400.28%
Native Hawaiian and Other Pacific Islander3100.06%

Chester County Population Pyramid

0k5k10k15k20k Male Population0k5k10k15k20k 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