Simi Valley is an incorporated city located in the extreme southeast corner of Ventura County, California, bordering the San Fernando Valley of Los Angeles in the Greater Los Angeles Area. According to the United States Bureau of the Census estimate, the city had a total population of 118,687 in 2005. Simi Valley apartments for rent comparison page shows most up to date rent information on Simi Valley apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.