Signs around the city proclaim 21 miles of scenic beauty, referring to the incorporated city limits. The city updated the signs in 2017 from the historical length of the Malibu coast spanning from Tuna Canyon on the southeast to Point Mugu in Ventura County on the northwest. For many residents of the unincorporated canyon areas, Malibu has the closest commercial centers and they are included in the Malibu ZIP Codes. The city is bounded by Topanga on the east, the Santa Monica Mountains (Agoura Hills, Calabasas, and Woodland Hills) to the north, the Pacific Ocean to the south, and Solromar in Ventura County to the west.