Amherst Junction
- County:
- Portage County
- County Seat:
- No
- Area (mi²):
- 1.236
- State:
- Wisconsin
Amherst Junction is a village located in Portage County, Wisconsin. Amherst Junction has a 2026 population of 382. Amherst Junction is currently growing at a rate of 0.26% annually but its population has decreased by -1.04% since the most recent census, which recorded a population of 386 in 2020.