| 1840 | 1850 | 1860 | 1870 |
| 1880 | 1890 | 1900 | 1910 |
| 1920 | 1930 | 1940 | Other |
to view the records or to volunteer to help.
| 1920 Federal Census | ||||
| County & SD/ED | Links | NARA Roll | Transcription Status |
Proofreader Status |
| Adair | T625-476 |  |
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| Adams | T625-476 | |
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| Allamakee | T625-476 | |
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| Appanoose | T625-477 | |
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| Audubon | T625-476 | |
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| Benton | T625-477 | |
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| Black Hawk | T625-478 | |
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| Boone | T625-479 | |
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| Bremer | T625-479 | |
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| Buchanan (part) | T625-479 | |
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| Buchanan (part) | T625-480 | |
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| Buena Vista | T625-480 | |
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| Butler | T625-480 | |
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| Calhoun (part) | T625-480 | |
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| Calhoun (part) | T625-481 | |
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| Carroll | T625-481 | |
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| Cass | T625-481 | |
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| Cedar | T625-482 | |
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| Cerro Gordo (part) | T625-482 | |
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| Cerro Gordo (part) | Images | T625-483 | |
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| Cherokee (part) | Images | T625-482 | |
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| Cherokee (part) | Images | T625-481 | |
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| Chickasaw | T625-482 | |
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| Clarke SD 8/ED 35 |
Images
Index |
T625-483 |
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Available For 2nd Transcription |
| Clarke SD 8/ED 36 |
Images
Index |
T625-483 |
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Available For 2nd Transcription |
| Clarke SD 8/ED 37 |
Images
Index |
T625-483 |
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Available For 2nd Transcription |
| Clarke SD 8/ED 38 |
Images
Index |
T625-483 |
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Available For 2nd Transcription |
| Clarke SD 8/ED 39 |
Images
Index |
T625-483 |
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Available For 2nd Transcription |
| Clarke SD 8/ED 40 |
Images
Index |
T625-483 |
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Available For 2nd Transcription |
| Clarke SD 8/ED 41 |
Images
Index |
T625-483 |
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Available For 2nd Transcription |
| Clarke SD 8/ED 42 |
Images
Index |
T625-483 |
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Available For 2nd Transcription |
| Clarke SD 8/ED 43 |
Images
Index |
T625-483 |
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Available For 2nd Transcription |
| Clarke SD 8/ED 44 |
Images
Index |
T625-483 |
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Available For 2nd Transcription |
| Clarke SD 8/ED 45 |
Images
Index |
T625-483 |
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Available For 2nd Transcription |
| Clarke SD 8/ED 46 |
Images
Index |
T625-483 |
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Available For 2nd Transcription |
| Clarke SD 8/ED 47 |
Images
Index |
T625-483 |
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Available For 2nd Transcription |
| Clay | Images | T625-483 | |
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| Clayton | T625-484 | |
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| Clinton (part) | T625-484 | |
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| Clinton (part) | T625-485 | |
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| Crawford | T625-485 | |
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| Dallas | T625-486 | |
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| Davis | T625-485 | |
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| Decatur | T625-486 | |
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| Delaware | T625-487 | |
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| Des Moines | T625-487 | |
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| Dickinson | T625-486 | |
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| Dubuque | T625-488 | |
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| Emmet 90-100 | T625-489 | |
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| Emmet 271 | T625-489 | |
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| Emmet 273 | T625-489 | |
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| Emmet 274 | T625-489 | Assigned to: Debbie Gilbertson |
Available For 2nd Transcription |
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| Fayette | T625-489 | |
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| Floyd | T625-490 | |
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| Franklin | T625-490 | |
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| Fremont | T625-490 | |
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| Greene | T625-491 | |
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| Grundy | T625-489 | |
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| Guthrie | T625-491 | |
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| Hamilton | T625-491 | |
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| Hancock | T625-492 | |
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| Hardin | T625-492 | |
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| Harrison | T625-493 | |
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| Henry | T625-493 | |
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| Howard | T625-494 | |
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| Humboldt | T625-494 | |
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| Ida | T625-492 | |
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| Iowa (part) | T625-493 | |
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| Iowa (part) | T625-494 | |
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| Jackson | T625-495 | |
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| Jasper | T625-496 | |
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| Jefferson | T625-494 | |
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| Johnson | T625-496 | |
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| Jones | T625-495 | |
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| Keokuk | T625-497 | |
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| Kossuth | T625-498 | |
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| Kossuth 164 | T625-498 | Assigned to: Catherine Parisi |
Available For 2nd Transcription |
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| Lee (part) | T625-498 | |
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| Lee (part) | T625-499 | |
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| Linn (part) | T625-500 | |
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| Linn (part) | T625-499 | |
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| Louisa | T625-495 | |
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| Lucas | T625-497 | |
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| Lyon | T625-497 | |
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| Madison 7/23 | Index | T625-499 |
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| Madison 7/24 | Index | T625-499 |
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| Madison 7/25 | Index | T625-499 |
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| Madison 7/26 | Index | T625-499 |
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| Madison 7/27 | Index | T625-499 |
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| Madison 7/28 | Index | T625-499 |
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| Madison 7/29 | Index | T625-499 |
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| Madison 7/30 | Index | T625-499 |
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| Madison 7/31 | Index | T625-499 |
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| Madison 7/32 | Index | T625-499 |
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| Madison 7/33 | Index | T625-499 |
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| Madison 7/34 | Index | T625-499 |
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| Madison 7/35 | Index | T625-499 |
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| Madison 7/36 | Index | T625-499 |
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| Madison 7/37 | Index | T625-499 |
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| Madison 7/38 | Index | T625-499 |
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| Madison 7/39 | Index | T625-499 |
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| Madison 7/40 | Index | T625-499 |
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| Mahaska | T625-501 | |
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| Marion | T625-501 | |
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| Marshall | T625-502 | |
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| Mills | T625-502 | |
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| Mitchell | T625-503 | |
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| Monona | T625-503 | |
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| Monroe | T625-503 | |
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| Montgomery | T625-504 | |
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| Muscatine | T625-504 | |
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| O'Brien | T625-505 | |
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| Osceolo | T625-504 | |
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| Page | T625-506 | |
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| Palo Alto | T625-505 | |
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| Plymouth | T625-506 | |
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| Pocohontas | T625-505 | |
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| Polk (county) | T625-507 | |
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| Polk: Des Moines (part) | T625-507 | |
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| Polk: Des Moines (part) | T625-508 | |
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| Polk: Des Moines (part) | T625-509 | |
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| Pottawattamie | T625-510 | |
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| Poweshiek | T625-511 | |
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| Ringgold | T625-511 | |
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| Sac | T625-511 | |
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| Scott (part) | T625-512 | |
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| Scott (part) | T625-513 | |
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| Shelby | T625-513 | |
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| Sioux | T625-514 | |
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| Story | T625-515 | |
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| Tama (part) | T625-513 | |
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| Tama (part) | T625-514 | |
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| Taylor | T625-514 | |
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| Union | T625-515 | |
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| Van Buren (part) | T625-515 | |
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| Van Buren (part) | T625-516 | |
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| Wapello (part) | T625-516 | |
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| Wapello (part) | T625-517 | |
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| Warren | T625-517 | |
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| Washington | T625-516 | |
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| Wayne | T625-517 | |
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| Webster 5 | T625-517 | Assigned to: Pete Hiracheta Jr. |
Available For 2nd Transcription |
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| Webster 6 | T625-517 | Assigned to: Pete Hiracheta Jr. |
Available For 2nd Transcription |
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| Webster 7 | T625-517 | Assigned to: Pete Hiracheta Jr. |
Available For 2nd Transcription |
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| Webster (part) | T625-518 | |
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| Winnebago | T625-518 | |
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| Winneshiek | T625-519 | |
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| Woodbury (part) | T625-519 | |
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| Woodbury (part) | T625-520 | |
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| Woodbury (part) | T625-521 | |
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| Worth | T625-518 | |
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| Wright | T625-519 | |
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