| STATE | State | State | |
| CITY | City | City | Beginning, sec.C3 |
| zip5 | Zip code, 5 digits | First 5 digits of zip code | |
| FIPS | State + County FIPS code | 2-digit State + 3-digit County FIPS code (Federal Information Processing Standard). See also U.S. Census Bureau State & County QuickFacts. | |
| MSA | Metropolitan Statistical Area | Metropolitan Statistical Area (NCCS file) (list) | |
| PMSA | Primary MSA | Primary Metropolitan Statistical Area - the component areas that comprise a CMSA (76 PMSAs as of 1995). (list) | |
| CNTY_NM | County | County Name | |
| CMSA | Consolidated MSA | Consolidated Metropolitan Statistical Area - by definition is an MSA with one million population or more. Separate component areas (PMSAs) must be defined within an MSA for the entire area to be designated a CMSA (19 CMSAs as of 1995). (list) | |