More historic than 5% of U.S. towns · #768 of 847 in California. What drives it
Most of Casa Conejo was built recently: 0.0% of its homes predate 1940 and the median home dates from 1965. Below: maps from 1900 on and the census since 1990.
On its age, its old homes and the National Register, Casa Conejo is more historic than 5% of U.S. towns, #768 of 847 in California. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
D−
HistoryA character grade: shown, never part of Casa Conejo’s overall grade.
Few California towns list much on the Register (a typical California town has 0.0 per 10,000 residents, the U.S. 2.4), so Casa Conejo’s 0.0 sits below most of its state (31% of California towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share (±1.7 points) is firm at this size.
Founding year: our sources. Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Casa Conejo’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Every edition of the U.S. Geological Survey’s map of Casa Conejo. Tap a year, or press play to watch the town change.
1900Triunfo Pass sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Casa Conejo.
The story so far
Casa Conejo, in brief
Wikipedia doesn’t have a history of Casa Conejo yet. The photos, dates and memories neighbors add here are how it gets written.
Casa Conejo ( ; Spanish for "Rabbit House") is an unincorporated county island in Newbury Park, Ventura County, California, United States. It was the first planned community in Newbury Park, with construction beginning in 1960. When the city of Thousand Oaks incorporated 4 years later, the new developments in Newbury Park were included within the city boundaries before being subdivided. The community is bordered by Old Conejo Road and US 101 to the north, Borchard Road to the south, Jenny Drive to the west, and Sequoia Middle School to the east. For statistical purposes, the United States Census Bureau defines Casa Conejo as a census-designated place (CDP), though this definition may not ex…
Its population held steady between the last two censuses: 3,249 in 2010, 3,267 in 2020.
Intro from Wikipedia. Population: U.S. Census Bureau.
Casa Conejo is more historic than 5% of U.S. towns, #768 of 847 in California. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
How old are the homes in Casa Conejo?
0.0% of Casa Conejo’s homes were built before 1940 (Census estimate, ±1.7 points), against a typical 3.4% for a California town; the median home was built in 1965.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021).
From Wikimedia Commons (4), U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
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