Eastvale is a city located in northwestern Riverside County, California, the Inland Empire region of Southern California. Its boundaries extend from Hellman Avenue to the West (the San Bernardino County Line), Bellgrave Avenue to the North (also the San Bernardino County Line), the Santa Ana River and Norco to the South, and Interstate 15 to the East. The population was 53,668 at the 2010 census.

Prior to incorporation, street addresses were addressed as "Corona, California" since the post office in that city was the closest one that could handle the volume from the new construction in the area.

The Los Angeles County line is approximately 8 miles northwest of Eastvale, while the Orange County line is approximately 5 miles to the southwest. The proximity of these last two heavily commercialized counties, and the fact that Eastvale is roughly squared between Interstate 15 and California State Routes 91, 60, and 71, has made Eastvale popular for those that commute to these counties for employment, making Eastvale something of a commuter town.