Meridian Map
Meridian Information
Meridian
Meridian is a city located in Ada County in the U.S. state of Idaho. As of the 2020 census, the population of Meridian was 117,635, making it the 2nd most populous city in the county and Idaho after Boise, the state capital. Meridian is considered the state's fastest-growing city and among the fastest-growing cities in the United States.