Jefferson County Population 2017

Jefferson County's estimated population is 84,625 with a growth rate of -0.02% in the past year according to the most recent United States census data. Jefferson County is the 20th largest county in Wisconsin.

Year Population Growth Growth Rate
201684,625-15-0.02%
201584,6401900.22%
201484,450-126-0.15%
201384,5761760.21%
201284,4005180.62%
201183,8822000.24%
201083,68215,89923.46%
199067,7831,6312.47%
198066,1526,09210.14%
197060,0609,96619.89%
196050,0947,02516.31%
195043,0694,20110.81%
194038,8682,0835.66%
193036,7851,7635.03%
192035,0227162.09%
191034,306-483-1.39%
190034,7891,2593.75%
189033,5301,3744.27%
188032,156-1,884-5.53%
187034,0403,60211.83%
186030,43815,12198.72%
185015,31714,4031575.82%
18409140.00%

Jefferson County Population Growth

Population Data via

Jefferson County Race Data

Race Population Percentage
White81,57496.39%
Two or More Races1,0451.23%
Black or African American8671.02%
Asian7360.87%
American Indian and Alaska Native3840.45%
Native Hawaiian and Other Pacific Islander340.04%

Jefferson County Population Pyramid

0k1k1k2k2k3k3k4kJefferson County Male Population0k1k1k2k2k3k3k4kJefferson County Female Population

Population of Cities in Jefferson County

City 2010 Census 2016 Estimated Growth Growth Rate
Watertown2385523817-38-0.16%
Fort Atkinson12397125411441.16%
Jefferson79738024510.64%
Lake Mills570758361292.26%
Waterloo3333333300.00%
Johnson Creek272929392107.70%
Palmyra17841770-14-0.78%
Sullivan66766810.15%
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