6,7,8 Digit SIC Codes. U.S. SIC codes are defined at the 4-digit level. If you see a SIC code that has 6,7, or even 8-digits, it is not an official U.S. government SIC code. These 6,7, and 8-digit codes have been created by private data companies to help further classify industries for marketing and identification purposes.
Napa is the county seat of Napa County, California. It is the principal city of the Napa county Metropolitan Statistical Area, which encompasses Napa county. As of the 2010 census, the city had a total population of 76,915. The area was settled in the 1830s. It was incorporated as a city in 1872.
Trending Now. Answers. Best Answer: If you are a private pilot, the closest airport to Napa, CA is Napa County Airport (5 miles from Napa). If you are a tourist taking a commercial flight, by distance, Oakland International (OAK) is 49.5 miles from Napa; San Francisco International (SFO) is 58.6 miles from Napa. I used to travel to the Bay area regularly.