Jefferson County Population 2018

Jefferson County's estimated population is 223,810 with a growth rate of 0.18% in the past year according to the most recent United States census data. Jefferson County is the 7th largest county in Missouri.

Year Population Growth Growth Rate
2017223,8103970.18%
2016223,4133070.14%
2015223,1061,0980.49%
2014222,0081,1490.52%
2013220,8591,0370.47%
2012219,8222820.13%
2011219,5404110.19%
2010219,12947,74927.86%
1990171,38025,19717.24%
1980146,18340,93538.89%
1970105,24838,87158.56%
196066,37728,37074.64%
195038,0075,98418.69%
194032,0234,46016.18%
193027,5631,0083.80%
192026,555-1,323-4.75%
191027,8782,1668.42%
190025,7123,22814.36%
189022,4843,74820.00%
188018,7363,35621.82%
187015,3805,03648.69%
186010,3443,41649.31%
18506,9282,63261.27%
18404,2961,70465.74%
18302,59275741.25%
18201,8350.00%

Jefferson County Population Growth

Population Data via

Jefferson County Race Data

Race Population Percentage
White215,93196.48%
Two or More Races3,2451.45%
Black or African American2,3841.07%
Asian1,5590.70%
American Indian and Alaska Native7270.32%
Native Hawaiian and Other Pacific Islander620.03%

Jefferson County Population Pyramid

0k2k4k6k8k Male Population0k2k4k6k8k 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