Napa County is located in the northern part of California's famous wine country region. It is the seventh most populous county in California. The county seat is the city of Napa. The largest city is American Canyon.

Napa County is known for its wine production, which is the foundation of its economy. The county is home to over 400 wineries, which produce some of the world's most renowned wines. The region is also known for its hot springs, spas, and resorts.

The county is governed by a five-member Board of Supervisors, with each supervisor representing one of five districts. The Board of Supervisors is responsible for formulating the county's budget and setting policy. The county also has a number of departments and offices, including those responsible for public works, health, the Napa County Sheriff’s Office, and planning and development.

The county is served by several public school districts, as well as several private schools. Napa Valley College is the only public institution of higher learning in the county.

Napa County is home to several state parks, including Bothe-Napa Valley, Bale Grist Mill State Historic Park, Robert Louis Stevenson State Park, and the Napa Valley State Park.

For the most up-to-date and in-depth information, please check the public records links below.