Topaz
- County:
- Mono County
- County Seat:
- No
- Area (mi²):
- 12.177
- State:
- California
Topaz is a CDP located in Mono County, California. Topaz has a 2025 population of 202 . Topaz is currently growing at a rate of 6.88% annually but its population has decreased by -45.26% since the most recent census, which recorded a population of 369 in 2020.
The median age in Topaz is 20.9 years: 0 years for males, and 20.7 years for females. For every 100 females there are 27.0 males.