Menifee, California is a city in southwestern Riverside County, California, United States and part of the Los Angeles Combined Statistical Area. Located nearly 8 miles (13 km) north of Murrieta, the city is roughly in size. It had a population of about 77,519 at the 2010 United States Census, and is anticipated to reach 100,000 by 2020. The incorporated City of Menifee includes the communities of Menifee, Sun City, Quail Valley, Paloma Valley and portions of Romoland.