
Meridian
- County:
- Ada County
- County Seat:
- No
- Area (mi²):
- 36.859
- State:
- Idaho
Meridian is a city located in Ada County, Idaho. Meridian has a 2025 population of 145,039. Meridian is currently growing at a rate of 3.66% annually and its population has increased by 21.43% since the most recent census, which recorded a population of 119,443 in 2020.
The average household income in Meridian is $127,749 with a poverty rate of 6.23%. The median age in Meridian is 37.4 years: 36.5 years for males, and 38.5 years for females.