For the wine region, see Napa Valley AVA. Napa County is a county located north of San Pablo Bay in the northern portion of the U.S. state of California. As of the 2010 census, the population was 136,484. The county seat is the City of Napa. Napa County was one of the original counties of California, created in 1850 at the time of statehood.
Area code 412 is a Pennsylvania area code that covers Pittsburgh and some of the surrounding areas. Area code 412 overlays the area code of 878. Pennsylvania has area codes of 215, 267, 272, 412, 484, 570, 610, 717, 724, 814, 878.
Zip Code 41240 Description. Zip Code 41240 is located in the state of Kentucky in the Charleston metro area. Zip code 41240 is primarily located in Johnson County. The official US Postal Service name for 41240 is PAINTSVILLE, Kentucky. Portions of zip code 41240 are contained within or border the city limits of Paintsville, KY, . The area code for zip code 41240 is 606.