IAGenWeb - Marion County |
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This data was obtained primarily from https://www.iowadatacenter.org/datatables/CountyAll/copopranking18502000.pdf (with its sources at the bottom of its page), which goes up 2000. The 2010 data was found at http://iagenweb.org/vanburen/MessageBoardImages/2010_Census-by_County-Iowa.pdf, while the 2020 data was found at https://www.iowa-demographics.com/counties_by_population. Below the chart are two graphs that depict this data.
| Year | Population | Rank |
|---|---|---|
| 1850 | 5482 | 14 |
| 1860 | 16813 | 12 |
| 1870 | 24436 | 10 |
| 1880 | 25111 | 14 |
| 1890 | 23058 | 22 |
| 1900 | 24159 | 27 |
| 1910 | 22995 | 31 |
| 1920 | 24957 | 27 |
| 1930 | 26727 | 24 |
| 1940 | 27019 | 22 |
| 1950 | 25930 | 23 |
| 1960 | 25886 | 22 |
| 1970 | 26352 | 23 |
| 1980 | 29669 | 21 |
| 1990 | 30001 | 20 |
| 2000 | 32052 | 21 |
| 2010 | 33309 | 22 |
| 2020 | 33193 | 22 |
This page was created and formatted by Al Hibbard 2022-04-11.