Historical societies and other history-related groups or projects in Washington County
Minnesota county historical society Web sites
| Aitkin | Anoka | Becker | Beltrami | Benton |
| Big Stone | Blue Earth | Brown | Carlton | Carver |
| Cass | Chippewa | Chisago | Clay | Clearwater |
| Cook | Cottonwood | Crow Wing | Dakota | Dodge |
| Douglas | Faribault | Fillmore | Freeborn | Goodhue |
| Grant | Hennepin | Houston | Hubbard | Isanti |
| Itasca | Jackson | Kanabec | Kandiyohi | Kittson |
| Koochiching | Lac Qui Parle | Lake | Lake of the Woods | Le Sueur |
| Lincoln | Lyon | McLeod | Mahnomen | Marshall |
| Martin | Meeker | Mille Lacs | Morrison | Mower |
| Murray | Nicollet | Nobles | Norman | Olmsted |
| Otter Tail | Pennington | Pine | Pipestone | Polk |
| Pope | Ramsey | Red Lake | Redwood | Renville |
| Rice | Rock | Roseau | St. Louis | Scott |
| Sherburne | Sibley | Stearns | Steele | Stevens |
| Swift | Todd | Traverse | Wabasha | Wadena |
| Waseca | Washington | Watonwan | Wilkin | Winona |
| Wright | Yellow Medicine |