Warren County Population 2018

Warren County's estimated population is 50,163 with a growth rate of 1.66% in the past year according to the most recent United States census data. Warren County is the 11th largest county in Iowa.

Year Population Growth Growth Rate
201750,1638201.66%
201649,3438771.81%
201548,4666361.33%
201447,8304821.02%
201347,3484650.99%
201246,8832550.55%
201146,6282880.62%
201046,34010,30728.60%
199036,0331,1553.31%
198034,8787,44627.14%
197027,4326,60331.70%
196020,8293,07117.29%
195017,758630.36%
194017,695-5-0.03%
193017,700-347-1.92%
192018,047-147-0.81%
191018,194-2,182-10.71%
190020,3762,10711.53%
189018,269-1,309-6.69%
188019,5781,5988.89%
187017,9807,69974.89%
186010,2819,320969.82%
18509610.00%

Warren County Population Growth

Population Data via

Warren County Race Data

Race Population Percentage
White47,23194.16%
Two or More Races5731.14%
Black or African American3650.73%
Asian2880.57%
American Indian and Alaska Native1420.28%
Native Hawaiian and Other Pacific Islander1070.21%

Warren County Population Pyramid

0k1k1k2k2k Male Population0k1k1k2k2k 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