
Millville
- County:
- Cache County
- County Seat:
- No
- Area (mi²):
- 2.548
- State:
- Utah
Millville is a city located in Cache County, Utah. Millville has a 2025 population of 2,545. Millville is currently growing at a rate of 1.56% annually and its population has increased by 8.21% since the most recent census, which recorded a population of 2,352 in 2020.
The average household income in Millville is $123,168 with a poverty rate of 5.38%. The median age in Millville is 37.7 years: 37.2 years for males, and 38.2 years for females.