Cambridge
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 0.484
- State:
- Idaho
Cambridge is a city located in Washington County, Idaho. Cambridge has a 2026 population of 365. Cambridge is currently declining at a rate of -1.35% annually but its population has increased by 4.29% since the most recent census, which recorded a population of 350 in 2020.
The median household income in Cambridge is $50,833 with a poverty rate of 13.2%. The median age in Cambridge is 56.8 years: 62 years for males, and 55.4 years for females. For every 100 females there are 90.6 males.