The Santa Rosa Valley is a small

valley A valley is an elongated low area often running between Hill, hills or Mountain, mountains, which will typically contain a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers ...

and rural

unincorporated community An unincorporated area is a region that is not governed by a local municipal corporation. Widespread unincorporated communities and areas are a distinguishing feature of the United States and Canada. Most other countries of the world either have ...

Ventura County Ventura County () is a county in the southern part of the U.S. state of California. As of the 2020 census, the population was 843,843. The largest city is Oxnard, and the county seat is the city of Ventura. Ventura County comprises the Oxnar ...

, Southern

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

. The valley is about long (east to west) and wide (north to south). Although not within its city limits, the community is sometimes considered to be an outlying neighborhood of

Camarillo Camarillo ( ) is a city in Ventura County in the U.S. state of California. As of the 2020 United States Census, the population was 70,741, an increase of 5,540 from the 65,201 counted in the 2010 Census. Camarillo is named for brothers Juan an ...

. There is an elementary school within the valley
Santa Rosa Technology Magnet School
which is part of th
PVSD
district. It is bordered on the south by the western

Simi Hills The Simi Hills are a low rocky mountain range of the Transverse Ranges in eastern Ventura County and western Los Angeles County, of southern California, United States. Geography The Simi Hills are aligned east-west and run for , and average arou ...

and

Wildwood Regional Park Wildwood Regional Park is a suburban regional park in the western Simi Hills and Conejo Valley, in Ventura County, California. It is located in western Thousand Oaks, northern Newbury Park, and southern Moorpark. Wildwood is home to over 27 mi ...

, and on the north by Las Posas Hills. The valley is drained principally by the Arroyo Santa Rosa, a tributary of

Calleguas Creek Calleguas Creek (; Chumash: ''Kayïwïsh'', meaning "the head") is the terminus of a river system in Ventura County, California. It drains the Calleguas Creek Watershed, an area 30 miles long and 14 miles wide (343 square miles), which includes Sim ...

which flows into the Pacific Ocean at

Mugu Lagoon Mugu Lagoon (; Chumash: ''Muwu'', meaning "Beach") is a salt marsh located within the Naval Base Ventura County at the foot of the Santa Monica Mountains in Ventura County, California. The lagoon extends for 4.3 miles parallel to a narrow barrier ...

References

Valleys of Ventura County, California Unincorporated communities in Ventura County, California Camarillo, California Simi Hills Unincorporated communities in California {{VenturaCountyCA-geo-stub