Phillips Ranch is a master-planned community, first developed by Louis Lesserin 1965. It is located in the southwestern portion of the city limits of Pomona, in Los Angeles County, California. It is located near the Pomona Freeway (SR 60), the Orange Freeway (SR 57), and the Chino Valley Freeway (SR 71). The zip code serving the neighborhood is 91766. Phillips Ranch is 4 miles southwest of downtown Pomona, and is mostly working to upper-middle class in a very diverse community. Many residents use "Phillips Ranch, CA" as a return address, which is an acceptable alternative to Pomona, CA, according to the United States Postal Service. Phillips Ranch is often referred to by its neighborhood name instead of by the city name. History Phillips Ranch is located on land which served as part of the ranch of Louis Phillips, who in 1864 acquired the southern end of the Rancho San Jose from two businessmen who had previously bought it from Ricardo Vejar. How much the very private Phillips’s fortune grew in these years is up for debate. In 1892, a reporter for the Pomona Progress interviewed Harris Newmark, who when asked, claimed unequivocally that the unassuming Phillips was the richest man in the county. In 1964, Louis Lesser Enterprises, Inc. purchased Phillips Ranch, one of the largest parcels of undeveloped land in Los Angeles County, and developed 10,000 housing units. Lesser purchased "the historic Phillips Ranch" southwest of Pomona in 1964, at 2.241 acres (9,070 m2) The sale of 5,000 acres (20 km2) of the ranch in 1875 started the City of Pomona. Lesser developed 10,000 housing units in this single project. The land was originally part of a 40,000-acre (160 km2) land grant from Mexico, Rancho San Jose, granted to Ricardo Vejar in 1837, who in 1864 sold to Prussian cowboy immigrant Louis Phillips, who came to California in the gold rush. Lesser's brother Alvin was his director of development at the time, and construction started in 1865. After the Civil War, the Southern Trail from the eastern United States, through Yuma, to the California coast passed through the ranch, and the Phillips Ranch Rubottom Hotel became a Saturday night wild west activity center, with fourteen saloons, and three opium dens for large numbers of settlers, businessmen, and others. Churches, schools, and Pomona College ended the lawless element. Louis Phillips Mansion The Phillips Mansion is a Second Empire-style historic house