Napa County, California

Napa County is a county in California with an estimated population of 133,216 in 2023. 5 cities, towns and Census places in it are indexed here.

Largest places in Napa County

About Napa County

Napa County is one of the counties of California. County governments in California handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.