Component counties by state
BEA counties and county equivalents are identified by five-digit Federal Information Processing Standard (FIPS) codes. The first two digits are the FIPS state code and the last three digits are the county code within the state. BEA has created modified FIPS codes for the following conditions:
- Kalawao County, Hawaii is combined with Maui County and combined area is designated 15901.
- The independent cities of Virginia with populations of less than 100,000 have been combined with an adjacent county and given codes beginning with 51901. In the name of the combined area, the county name appears first and is followed by the city name(s).
- Menominee County, Wisconsin is combined with Shawano County for 1969–1988 as 55901. Separate estimates for Menominee and Shawano Counties begin in 1989.