Monroe County Population 2017

Monroe County's estimated population is 34,068 with a growth rate of 0.52% in the past year according to the most recent United States census data. Monroe County is the 44th largest county in Illinois.

Year Population Growth Growth Rate
201634,0681750.52%
201533,8932090.62%
201433,6841370.41%
201333,5472260.68%
201233,321920.28%
201133,2292190.66%
201033,01010,58847.22%
199022,4222,30511.46%
198020,1171,2866.83%
197018,8313,32421.44%
196015,5072,22516.75%
195013,2825284.14%
194012,7543853.11%
193012,369-470-3.66%
192012,839-669-4.95%
191013,508-339-2.45%
190013,8478996.94%
189012,948-734-5.36%
188013,6827005.39%
187012,9821501.17%
186012,8325,15367.11%
18507,6793,19871.37%
18404,4812,481124.05%
18302,00046330.12%
18201,5370.00%

Monroe County Population Growth

Population Data via

Monroe County Race Data

Race Population Percentage
White33,22397.52%
Two or More Races2780.82%
Asian1910.56%
Black or African American1130.33%
American Indian and Alaska Native760.22%
Native Hawaiian and Other Pacific Islander120.04%

Monroe County Population Pyramid

0k1k1k2kMonroe County Male Population0k1k1k2kMonroe County Female Population

Population of Cities in Monroe County

City 2010 Census 2016 Estimated Growth Growth Rate
Waterloo9982103093273.28%
Columbia9685102735886.07%
Valmeyer1251125650.40%
Hecker48648930.62%
Maeystown159158-1-0.63%
Fults262600.00%
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