Piatt County Population 2018

Piatt County's estimated population is 16,445 with a growth rate of -0.49% in the past year according to the most recent United States census data. Piatt County is the 66th largest county in Illinois.

Year Population Growth Growth Rate
201716,445-81-0.49%
201616,5261741.06%
201516,352-59-0.36%
201416,411-20-0.12%
201316,431-71-0.43%
201216,502-177-1.06%
201116,679-32-0.19%
201016,7111,1637.48%
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
White16,00597.32%
Two or More Races1681.02%
Black or African American930.57%
Asian750.46%
American Indian and Alaska Native310.19%
Native Hawaiian and Other Pacific Islander80.05%

Piatt County Population Pyramid

0k0k0k0k0k1k1k1k Male Population0k0k0k0k0k1k1k1k 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