Robinson Ranch

Robinson Ranch is drawn on the city's HOA Master register at 123.9 acres, with 628 addresses inside it. They sit on twenty-one streets, Joshua Drive, Mill Stream Road, High Country Drive and Pleasant Glen Road among them, carrying 0.02 miles of centerline. The county parcel record inside the boundary is 473 parcels, predominantly detached single family houses. The median lot the county records here is 0.15 acres and 53 feet wide. The city general plan gives 69.4 of those acres a low density residential designation. The zoning layer puts 53.4 acres in the RL-6000 zone and 23.4 in OS. Mail here carries the 92679 zip code and a Rancho Santa Margarita postal city, and 184 of the addresses carry a unit designator.

The city groups Robinson Ranch, Trabuco Highlands, Walden and Rancho Cielo in its parkland table and books 43.0 acres across five sites to the four together. 37.8 acres are rated Very High on the 2025 state fire hazard severity map the city publishes. The city assigns the ground to evacuation zone RSM03, which it describes as Robinson Ranch HOA, Trabuco Highlands HOA, Trabuco Highland Apartment Complex. Water comes from the Trabuco Canyon Water District and trash is collected Tuesday by CR&R. All of it lies in Saddleback Valley Unified, which feeds Robinson Elementary, Rancho Santa Margarita Intermediate and Mission Viejo High.

Walter K. Robinson was born in Santa Clara in 1853, married Margaret Waite of Los Angeles in 1883 and had nine children with her. In that same year he bought the railroad land and the claims of Jim Brown and Lew English along the east side of Plano Trabuco and called the place the Mountain View Ranch. For years he was an officer of the Trabuco Forest Reserve, which is now the Cleveland National Forest, and Deputy Fish and Game Commissioner of California, working out of Trabuco Canyon. He died on 11 November 1920.

The streets are the giveaway that this is not part of the Spanish named city below. Mill Stream, Old Hickory, Wagon Wheel, Prairie View, Hidden Spring, Sleepy Glen, Cozy Glen, Country Farm, Old Oak and Heritage are American country names, laid out for the homes that went up here between 1985 and the early 1990s in the building boom that also produced Dove Canyon and Wagon Wheel. Robinson Ranch was one of the six separate communities that voted together in 1999 to become the City of Rancho Santa Margarita on 1 January 2000.