Yes, Thousand Oaks is in Ventura County, but this extension of its main drag pops up in three L.A. County municipalities. Thousand Oaks itself was established in 1922. Dr. Homer A. Hansen (namesake of Hansen Dam in the northeast Valley: see Sunland Blvd.), who had purchased some 2,250 acres that April from rancher William H. Crowley, then sold 1,700 acres to real estate developers Lucian M. Culver and Livingston M. Sturges, who staged a “name that town” contest that November. Historians contend that it was teenager Bobby Harrington who submitted “Thousand Oaks”, winning $5 and a small piece of land; I found no mention of him until 1964, so take that factoid with a grain of salt. Anyway, Thousand Oaks Blvd. was initially part of Ventura Blvd. In 1959, Thousand Oaks business leaders began yearning to change the name, complaining that there were already plenty of streets called “Ventura” and none called “Thousand Oaks”. (They must not have known about Sunland-Tujunga’s Thousand Oaks Drive.) They finally got their wish in 1963. Thousand Oaks Blvd. was extended into Westlake Village by 1970, Agoura Hills in 1980, and Calabasas by 1985.
Find it on the map:
![Map of Thousand Oaks Boulevard in Los Angeles County, California](https://lastreetnames.com/wp-content/uploads/2024/05/thousand-oaks-boulevard-map.png)