Rainbow has served as an agricultural settlement in northern San Diego County since the late 19th century. The community lies in Southern California’s inland foothills, within the Santa Margarita River watershed and near the Riverside County line. Interstate 15 provides a major route between San Diego and the Inland Empire, yet Rainbow retains a low-density mix of homes, ranches and working land. Avocado and citrus groves remain central to its local identity, reflecting the region’s long-established cultivation of subtropical crops. The nearby Santa Margarita Mountains add chaparral-covered slopes to the wider setting. Trace Rainbow’s place in northern San Diego County by browsing webcams from nearby communities.
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