Newbury Park is a populated place and town in Ventura County, California. Most of it lies within the western Thousand Oaks city limits, while unincorporated areas include Casa Conejo and Ventu Park. About 28,000 residents of Thousand Oaks reside in Newbury Park. Newbury Park makes up around 40 percent of the total land area of Thousand Oaks.

Camarillo is a city in Ventura County in the U.S. state of California. As of the 2010 United States Census, the population was 65,201, an increase of 8,117 from the 57,084 counted in the 2000 Census.

Moorpark is a city in Ventura County in Southern California. Moorpark was founded in 1900. As of 2006, Moorpark was one of the fastest-growing cities in Ventura County. The population was 34,421 at the 2010 census, up from 31,415 at the 2000 census.

Oak View is an unincorporated community in Ventura County, California. The community is located along the Ventura River in a narrow valley between the towns of Casitas Springs (south) and Mira Monte (north). At the 2010 census, the population of Oak View was 4,066, down from 4,199 at the 2000 census.

Somis is an unincorporated community in Ventura County, California. It had a population of 3,179 in 2010. The United States Census Bureau has defined Somis as a census-designated place.

Ojai is a city in Ventura County, California. Located in the Ojai Valley. The valley is part of the east–west trending Western Transverse Ranges and is about 10 miles (16 km) long by 3 miles (5 km) wide and divided into a lower and an upper valley, each of similar size, surrounded by hills and mountains. The population was 7,637 at the 2020 census, up from 7,461 at the 2010 census.

Piru is a small unincorporated historic town located in eastern Ventura County, California, in the Santa Clara River Valley near the Santa Clara River and Highway 126. Lake Piru, in the Los Padres National Forest, is the main recreational attraction. The population was 2,063 at the 2010 census, up from 1,196 when the 2000 census was enumerated.

Fillmore is a small city in Ventura County, California, United States, in the Santa Clara River Valley. In an agricultural area with rich, fertile soil, Fillmore has a historic downtown that was established when the Southern Pacific built the railroad through the valley in 1887. The population was 15,002 at the 2010 census, up from 13,643 at the 2000 census.

Oak Park is an unincorporated community in Ventura County, California. When developed in the Simi Hills in the late 1960s, a single road provided the only access to the community from Agoura Hills, California, in neighboring Los Angeles County. As of the 2010 census, Oak Park had a population of 14,266, down from 14,625 at the 2000 census.

Port Hueneme is a small beach city in Ventura County, California, surrounded by the city of Oxnard and the Santa Barbara Channel. Both the Port of Hueneme and Naval Base Ventura County lie within the city limits. The 2010 United States Census reported that Port Hueneme had a population of 21,723.