The area served by the Colfax Area Historical Society comprises the 95713 ZIP code plus Weimar. The area runs roughly from Heather Glen on the south, to Secret Town on the north; and from the Bear River on the west to the Shirttail canyon on the east.
Included are the following locations, current and historic:
- Colfax
- Iowa Hill
- Weimar (95736)
- Magra
- Cape Horn
- Shady Glen
- Eden Valley
- Lander Crossing
- New England Mills (now Weimar)
- Illinoistown (historic)
- Camp 20 (now Colfax)
- Sleepy Hollow (Historic)
- Glen Alder (historic)
- Oilville (railroad historic)
- Wirt (railroad historic)
- The Colony (historic)
- Bird’s Flat (historic)
- Elizabethtown (historic)
- Mineral Bar (historic)
- Monona Flat (historic)
- Tanyards (historic)
- Wisconsin Hill (historic)
Updated August 21, 2026