Murrieta is a city in southwestern Riverside County, California, United States. Take a look below for 15 amazing and awesome facts about Murrieta, California, United States. 1. The population of Murrieta was 110,949 as of the 2020 census. 2. Murrieta experienced a 133.7% population increase between 2000 and 2010, making Murrieta one of the fastest-growing…