West Rancho Dominguez (formerly, West Compton) is an unincorporated census-designated place (CDP) located in southern Los Angeles County, California. The population was 5,669 at the 2010 census, up from 5,435 at the 2000 census. The community lies to the west (but is not a part) of the city of Compton. The ZIP Codes encompassing the CDP area are 90220 & 90248.

Rio Rancho (Spanish: Río Rancho) is the largest city and economic hub of Sandoval County, part of the expansive Albuquerque metropolitan area, in the U.S. state of New Mexico. A small portion of the city extends into northern Bernalillo County. It is the third-largest and also one of the fastest expanding cities in New Mexico. As of the 2010 census, Rio Rancho had a population of 87,521. The name Rio Rancho derives from Los Ranchos (the ranches) that stretched along the Rio Grande in the Albuquerque Basin, and throughout historic Nuevo México, including those in neighboring Corrales.

Rancho Santa Margarita () is a city in Orange County, California, United States. One of Orange County’s youngest cities, Rancho Santa Margarita is a master-planned community. The population was 47,853 at the 2010 census, up from 47,214 at the 2000 census.
Although it is named for Rancho Santa Margarita y Las Flores, which was in San Diego County, the city limits fall within the borders of Rancho Mission Viejo. At 20 characters long, it is the longest city name in California.

Rancho San Diego is a census-designated place (CDP) in San Diego County, California. The population was 21,208 at the 2010 census, up from 20,155 at the 2000 census. The area was developed as subdivisions beginning in the 1970s.

Rancho Palos Verdes, is a coastal city located in Los Angeles County, California atop the bluffs of the Palos Verdes Peninsula, neighboring other cities in the Palos Verdes Hills, including Palos Verdes Estates, Rolling Hills and Rolling Hills Estates. Rancho Palos Verdes is known for its dramatic views of the Pacific Ocean, Santa Catalina Island, and Los Angeles, as well as for its highly-ranked schools, extensive horse and hiking trails,
and for being one of the wealthiest zip codes in the United States in terms of household income and property prices.

Rancho Mirage is a city in Riverside County, California, United States. The population was 17,218 at the 2010 census, up from 13,249 at the 2000 census, but the seasonal (part-time) population can exceed 20,000. Located between Cathedral City and Palm Desert, it is one of the nine cities of the Coachella Valley (Palm Springs area). Rancho Mirage was incorporated in 1973 from a merger of Mirage Cove with five unincorporated areas known as the “Cove communities” (Desert, Magnesia, Palmas, Tamarisk, and Thunderbird), and had 3,000 permanent residents at the time.

Rancho Cucamonga () is a city located just south of the foothills of the San Gabriel Mountains and Angeles National Forest in San Bernardino County, California, United States. About 37 miles (60 km) east of Downtown Los Angeles, Rancho Cucamonga is the 26th most populous city in California. The city’s seal, which centers on a cluster of grapes, alludes to the city’s agricultural history including wine-making. The city’s proximity to major transportation hubs, airports, and highways has attracted the business of several large corporations, including Coca-Cola, Frito-Lay, Big Lots, Mercury Insurance Group, Southern California Edison, and Amphastar Pharmaceuticals.

The city had a population of 165,269 according to the 2010 United States Census and the Census Bureau estimated the population to be 177,603 in 2019. The city experiences an average of 287 sunny days per year, compared to a national average of 205 days. Its climate is classified as warm Mediterranean, or Csa, under the Köppen climate classification system.

The city’s favorable location and host of public amenities have earned it numerous distinctions. Notably, Money Magazine ranked Rancho Cucamonga 42nd on its “Best Places to Live” list in 2006. In addition, Business Insider established one Rancho Cucamonga neighborhood as the 13th richest neighborhood in Southern California. The four public high schools (Alta Loma, Etiwanda, Los Osos, and Rancho Cucamonga) earned the Silver distinction in a 2015 ranking of the nation’s high schools by U.S. News & World Report. In 2017 the California Department of Education announced that all four high schools were being named California Gold Ribbon Schools.

The Jack Benny Program popularized the city’s name, in particular the word “Cucamonga”.

Rancho Cordova is a city in Sacramento County, California, United States which was incorporated in 2003. It is part of the Sacramento Metropolitan Area. The population was 64,776 at the 2010 census. Rancho Cordova’s workforce of 65,000+ in emerging and mature sectors makes it one of the largest employment centers in the region. The city is served by Sacramento Regional Transit’s various bus lines and the Gold Line light rail line, though fewer than 0.1 percent of commuters to Rancho Cordova use the line according to the US Census Bureau’s American Community Survey (2010–2012). In 2010 and 2019, Rancho Cordova was named as a winner of the All-America City Award.

East Rancho Dominguez, also known as East Compton, is an unincorporated community and census-designated place (CDP) located in southern Los Angeles County, California. The population was 15,135 at the 2010 census, up from 9,286 at the 2000 census. East Rancho Dominguez is an accepted city name according to the USPS, and shares the 90221 ZIP Code with Compton.

East Rancho Dominguez is an unincorporated enclave surrounded by Compton within five blocks east and west of Atlantic Ave.. Alondra Boulevard is the southern border, and three blocks north of Rosecrans Ave. is roughly the northern border. East Rancho Dominguez County Park is in the center of the community.

To the north is the city of Lynwood. To the east is the Long Beach Freeway, the Los Angeles River, and then the city of Paramount. To the south and southeast is the city of Long Beach.

Its sphere of influence is the city of Compton, which has tried to annex East Rancho Dominguez, but business and property owners in the area have opposed the annexation. Rancho Dominguez is a separate unincorporated, mostly industrial area south of the city of Compton.