Polk County Population

Facts - Post Offices - County Officials - Encyclopedia

Year Population
1850 1,263
1860 4,262
1870 3,376
1880 5,867
1890 9,283
1900 18,352
1910 17,216
1920 16,412
1930 14,857
1940 15,832
1950 14,182
1960 11,981
1970 13,297
1980 17,007
1990 17,347
2000 20,229