Wildomar is a lovely and rapidly-growing city in Riverside County California. in spite of its growth, much of the area retains a wonderful, rural feel. It is south of Lake Elsinore and north of Murrieta. was incorporated on July 1, 2008. As of the 2010 census, the population of Wildomar was 32,176, an increase from 14,064 at the 2000 census.