Linn County Population 2018

Linn County's estimated population is 224,115 with a growth rate of 1.00% in the past year according to the most recent United States census data. Linn County is the 2nd largest county in Iowa.

Year Population Growth Growth Rate
2017224,1152,2151.00%
2016221,9001,9290.88%
2015219,9712,1500.99%
2014217,8211,5860.73%
2013216,2359230.43%
2012215,3121,3290.62%
2011213,9832,3261.10%
2010211,65742,89025.41%
1990168,767-1,008-0.59%
1980169,7756,5624.02%
1970163,21326,31419.22%
1960136,89932,62531.29%
1950104,27415,13216.98%
194089,1426,8068.27%
193082,3368,33211.26%
192074,00413,28421.88%
191060,7205,3289.62%
190055,39210,08922.27%
189045,3038,06621.66%
188037,2376,15719.81%
187031,08012,13364.04%
186018,94713,503248.03%
18505,4444,071296.50%
18401,3730.00%

Linn County Population Growth

Population Data via

Linn County Race Data

Race Population Percentage
White197,67188.20%
Black or African American10,6924.77%
Two or More Races5,3352.38%
Asian5,2102.32%
American Indian and Alaska Native6580.29%
Native Hawaiian and Other Pacific Islander2260.10%

Linn 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