Rancho Ontario, located in Ontario, California, is a 55+ active adult community perfectly situated in the Cucamonga Valley near Los Angeles, accommodating outdoor adventurers and urban explorers alike. Our pet-friendly manufactured home community offers upscale amenities, vibrant activities, and lively nearby destinations that you can enjoy while living in the midst of Southern California�s stunning landscape. Not too close but not too far, Ontario is nestled against the stunning mountains and national forests of California while keeping the big city within reach. Located only one mile from Ontario Airport and within reach of countless other conveniences, adventures, entertainment, day trips, and medical centers. Luxurious and peaceful, Rancho Ontario makes it easy to live your best years in style!