Elderly Percentage of the Population, Historical
| Source: | Decennial Census, U.S. Census Bureau |
| Units: | Percentage of residents ages 65 years or older |
| Additional data: | Download historical data series (1930-2010) in Excel |
| FIPS | Area Name | 1970 | 1980 | 1990 | 2000 | 2010 |
|---|---|---|---|---|---|---|
| 19000 | State of Iowa | 11.4 | 12.3 | 14.3 | 13.9 | 14.9 |
| 19001 | Adair | 15.9 | 18.7 | 22.6 | 21.1 | 21.4 |
| 19003 | Adams | 16.0 | 17.8 | 20.7 | 20.4 | 21.3 |
| 19005 | Allamakee | 15.0 | 16.0 | 18.5 | 17.4 | 19.6 |
| 19007 | Appanoose | 17.9 | 17.6 | 20.4 | 19.0 | 20.1 |
| 19009 | Audubon | 14.5 | 17.6 | 22.1 | 22.5 | 23.2 |
| 19011 | Benton | 12.3 | 13.6 | 15.6 | 14.4 | 15.4 |
| 19013 | Black Hawk | 8.1 | 9.2 | 12.6 | 13.0 | 13.8 |
| 19015 | Boone | 15.2 | 15.4 | 17.0 | 15.4 | 15.9 |
| 19017 | Bremer | 11.1 | 12.1 | 15.7 | 15.0 | 17.3 |
| 19019 | Buchanan | 10.5 | 11.2 | 14.6 | 13.5 | 15.3 |
| 19021 | Buena Vista | 13.8 | 15.3 | 16.9 | 15.9 | 15.1 |
| 19023 | Butler | 13.4 | 15.5 | 19.5 | 19.1 | 19.8 |
| 19025 | Calhoun | 16.2 | 18.6 | 22.7 | 21.1 | 23.7 |
| 19027 | Carroll | 12.3 | 13.8 | 16.8 | 17.7 | 18.6 |
| 19029 | Cass | 16.2 | 17.8 | 19.9 | 19.8 | 21.0 |
| 19031 | Cedar | 13.0 | 13.6 | 15.9 | 15.2 | 16.7 |
| 19033 | Cerro Gordo | 11.8 | 13.4 | 15.9 | 16.7 | 17.9 |
| 19035 | Cherokee | 12.6 | 14.6 | 17.5 | 19.4 | 21.6 |
| 19037 | Chickasaw | 12.5 | 13.5 | 16.8 | 16.9 | 19.1 |
| 19039 | Clarke | 16.8 | 16.1 | 17.6 | 16.1 | 16.7 |
| 19041 | Clay | 12.1 | 12.7 | 15.5 | 17.0 | 18.4 |
| 19043 | Clayton | 13.9 | 15.3 | 17.1 | 17.5 | 19.3 |
| 19045 | Clinton | 10.5 | 11.9 | 15.0 | 14.8 | 16.8 |
| 19047 | Crawford | 12.1 | 13.0 | 16.4 | 16.1 | 16.3 |
| 19049 | Dallas | 12.6 | 12.0 | 13.6 | 10.1 | 9.8 |
| 19051 | Davis | 15.8 | 16.1 | 17.7 | 16.4 | 17.1 |
| 19053 | Decatur | 17.1 | 17.3 | 19.5 | 16.7 | 18.1 |
| 19055 | Delaware | 11.0 | 11.5 | 13.7 | 14.0 | 16.6 |
| 19057 | Des Moines | 12.2 | 13.1 | 15.2 | 15.7 | 17.6 |
| 19059 | Dickinson | 14.2 | 15.2 | 19.8 | 19.6 | 22.3 |
| 19061 | Dubuque | 9.0 | 10.1 | 13.1 | 13.7 | 15.3 |
| 19063 | Emmet | 12.2 | 13.7 | 17.9 | 18.4 | 18.8 |
| 19065 | Fayette | 13.4 | 15.3 | 18.2 | 18.0 | 19.4 |
| 19067 | Floyd | 12.7 | 14.4 | 18.6 | 18.2 | 20.0 |
| 19069 | Franklin | 14.8 | 16.2 | 19.0 | 19.5 | 19.1 |
| 19071 | Fremont | 15.8 | 17.5 | 20.6 | 18.8 | 19.6 |
| 19073 | Greene | 15.6 | 18.1 | 21.5 | 20.6 | 20.9 |
| 19075 | Grundy | 12.2 | 14.6 | 19.0 | 18.3 | 18.8 |
| 19077 | Guthrie | 17.5 | 18.8 | 20.0 | 19.5 | 19.9 |
| 19079 | Hamilton | 12.7 | 14.4 | 17.5 | 17.0 | 18.1 |
| 19081 | Hancock | 13.6 | 14.4 | 17.1 | 16.9 | 19.1 |
| 19083 | Hardin | 14.8 | 16.2 | 20.2 | 19.7 | 21.0 |
| 19085 | Harrison | 15.4 | 16.2 | 18.5 | 16.7 | 17.8 |
| 19087 | Henry | 13.3 | 14.3 | 15.5 | 13.7 | 16.0 |
| 19089 | Howard | 15.3 | 18.2 | 20.6 | 19.1 | 19.3 |
| 19091 | Humboldt | 12.7 | 15.5 | 20.0 | 20.0 | 20.6 |
| 19093 | Ida | 14.7 | 17.2 | 19.3 | 20.8 | 20.7 |
| 19095 | Iowa | 12.9 | 15.4 | 17.8 | 16.1 | 17.2 |
| 19097 | Jackson | 12.0 | 12.8 | 15.6 | 16.3 | 18.6 |
| 19099 | Jasper | 10.8 | 12.6 | 14.9 | 15.0 | 16.5 |
| 19101 | Jefferson | 13.3 | 14.0 | 13.7 | 12.8 | 14.8 |
| 19103 | Johnson | 6.0 | 6.1 | 6.4 | 6.4 | 8.6 |
| 19105 | Jones | 11.4 | 12.5 | 14.9 | 14.8 | 17.2 |
| 19107 | Keokuk | 16.9 | 19.0 | 19.7 | 19.2 | 19.2 |
| 19109 | Kossuth | 11.9 | 14.1 | 18.0 | 19.1 | 21.9 |
| 19111 | Lee | 11.8 | 12.7 | 15.7 | 15.5 | 16.9 |
| 19113 | Linn | 8.1 | 9.1 | 11.1 | 11.2 | 13.0 |
| 19115 | Louisa | 13.1 | 12.8 | 14.0 | 13.1 | 15.0 |
| 19117 | Lucas | 17.2 | 17.4 | 19.7 | 18.3 | 20.2 |
| 19119 | Lyon | 12.2 | 14.3 | 17.0 | 17.8 | 16.8 |
| 19121 | Madison | 16.0 | 16.1 | 17.0 | 14.2 | 14.8 |
| 19123 | Mahaska | 15.3 | 15.1 | 16.7 | 15.3 | 16.1 |
| 19125 | Marion | 14.0 | 13.4 | 15.1 | 14.9 | 15.6 |
| 19127 | Marshall | 11.3 | 12.9 | 16.5 | 15.4 | 16.4 |
| 19129 | Mills | 12.0 | 11.7 | 12.7 | 11.6 | 13.4 |
| 19131 | Mitchell | 15.1 | 17.7 | 20.8 | 20.6 | 21.7 |
| 19133 | Monona | 15.9 | 19.1 | 22.7 | 22.9 | 23.7 |
| 19135 | Monroe | 17.7 | 17.4 | 19.6 | 18.5 | 18.6 |
| 19137 | Montgomery | 18.0 | 18.7 | 20.8 | 19.3 | 19.9 |
| 19139 | Muscatine | 11.3 | 11.1 | 12.4 | 11.9 | 13.7 |
| 19141 | Obrien | 14.9 | 16.6 | 19.6 | 20.1 | 20.4 |
| 19143 | Osceola | 14.0 | 16.2 | 18.3 | 17.9 | 19.7 |
| 19145 | Page | 17.7 | 18.1 | 19.9 | 18.8 | 19.9 |
| 19147 | Palo Alto | 13.7 | 16.0 | 19.5 | 20.3 | 21.3 |
| 19149 | Plymouth | 11.2 | 13.4 | 15.3 | 15.0 | 16.6 |
| 19151 | Pocahontas | 14.7 | 17.4 | 20.8 | 20.7 | 22.1 |
| 19153 | Polk | 8.8 | 9.4 | 10.5 | 10.1 | 10.8 |
| 19155 | Pottawattamie | 9.6 | 10.6 | 12.4 | 12.7 | 14.3 |
| 19157 | Poweshiek | 12.5 | 13.9 | 15.7 | 16.6 | 18.4 |
| 19159 | Ringgold | 18.1 | 20.2 | 23.2 | 23.0 | 23.6 |
| 19161 | Sac | 15.2 | 17.9 | 20.9 | 21.7 | 22.1 |
| 19163 | Scott | 8.1 | 7.9 | 10.5 | 10.8 | 13.1 |
| 19165 | Shelby | 13.0 | 15.1 | 19.4 | 19.4 | 20.9 |
| 19167 | Sioux | 10.8 | 11.7 | 13.7 | 14.0 | 14.3 |
| 19169 | Story | 7.3 | 7.3 | 8.6 | 8.8 | 10.0 |
| 19171 | Tama | 14.4 | 16.0 | 18.4 | 17.7 | 18.4 |
| 19173 | Taylor | 20.3 | 20.3 | 23.1 | 21.4 | 21.0 |
| 19175 | Union | 17.1 | 16.9 | 18.3 | 17.7 | 18.1 |
| 19177 | Van Buren | 17.6 | 17.7 | 19.4 | 18.1 | 19.8 |
| 19179 | Wapello | 13.7 | 15.9 | 17.7 | 16.8 | 16.4 |
| 19181 | Warren | 8.2 | 8.2 | 9.9 | 10.8 | 13.3 |
| 19183 | Washington | 14.6 | 15.3 | 17.6 | 16.9 | 17.3 |
| 19185 | Wayne | 20.9 | 21.9 | 25.3 | 22.8 | 22.1 |
| 19187 | Webster | 11.5 | 13.7 | 16.6 | 16.4 | 16.7 |
| 19189 | Winnebago | 14.1 | 16.7 | 18.1 | 17.9 | 19.3 |
| 19191 | Winneshiek | 12.5 | 13.1 | 14.4 | 14.7 | 16.8 |
| 19193 | Woodbury | 11.5 | 12.3 | 13.7 | 12.4 | 12.8 |
| 19195 | Worth | 15.3 | 17.7 | 19.9 | 18.4 | 18.3 |
| 19197 | Wright | 14.2 | 17.1 | 21.1 | 20.2 | 20.9 |