Piatt County Population 2017

Piatt County's estimated population is 16,560 with a growth rate of 1.10% in the past year according to the most recent United States census data. Piatt County is the 65th largest county in Illinois.

Year Population Growth Growth Rate
201616,5601801.10%
201516,380-58-0.35%
201416,438-6-0.04%
201316,444-79-0.48%
201216,523-169-1.01%
201116,692-32-0.19%
201016,7241,1767.56%
199015,548-1,033-6.23%
198016,5811,0726.91%
197015,5095493.67%
196014,9609907.09%
195013,970-689-4.70%
194014,659-929-5.96%
193015,588-126-0.80%
192015,714-662-4.04%
191016,376-1,330-7.51%
190017,7066443.77%
189017,0621,4799.49%
188015,5834,63042.27%
187010,9534,82678.77%
18606,1274,521281.51%
18501,6060.00%

Piatt County Population Growth

Population Data via

Piatt County Race Data

Race Population Percentage
White16,00596.65%
Two or More Races1681.01%
Black or African American930.56%
Asian750.45%
American Indian and Alaska Native310.19%
Native Hawaiian and Other Pacific Islander80.05%

Piatt County Population Pyramid

0k0k0k0k0k1k1k1kPiatt County Male Population0k0k0k0k0k1k1k1kPiatt County Female Population

Population of Cities in Piatt County

City 2010 Census 2016 Estimated Growth Growth Rate
Monticello55485585370.67%
Bement17301696-34-1.97%
Cerro Gordo14031363-40-2.85%
Mansfield906876-30-3.31%
Hammond509488-21-4.13%
De Land446428-18-4.04%
Cisco261257-4-1.53%
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