Polk County Population 2018

Polk County's estimated population is 686,483 with a growth rate of 2.92% in the past year according to the most recent United States census data. Polk County is the 9th largest county in Florida.

Year Population Growth Growth Rate
2017686,48319,4652.92%
2016667,01817,3742.67%
2015649,64414,4922.28%
2014635,15212,1711.95%
2013622,9817,3421.19%
2012615,6395,7150.94%
2011609,9246,7891.13%
2010603,135197,75348.78%
1990405,38283,73026.03%
1980321,65294,43041.56%
1970227,22232,08316.44%
1960195,13971,14257.37%
1950123,99737,33243.08%
194086,66514,37419.88%
193072,29133,63086.99%
192038,66114,51360.10%
191024,14811,67693.62%
190012,4724,56757.77%
18907,9054,724148.51%
18803,181120.38%
18703,1690.00%

Polk County Population Growth

Population Data via

Polk County Race Data

Race Population Percentage
White516,75875.28%
Black or African American102,22114.89%
Two or More Races13,4011.95%
Asian12,2641.79%
American Indian and Alaska Native4,0540.59%
Native Hawaiian and Other Pacific Islander7270.11%

Polk County Population Pyramid

0k5k10k15k20k Male Population0k5k10k15k20k 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