| STATE | State | State | |
| 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_NECH | MSA | Metropolitan Statistical Area (NCCS file) (list) | |
| CBSA2003 | CBSA | Core Based Statistical Area | |
| cnty_name | County name | County name | |
| TotPop06 | Population Estimate, 2006 | Census Total Population Estimate by County FIPS for 2006 | |
| TotPop07 | Population Estimate, 2007 | Census Total Population Estimate by County FIPS for 2007 | |
| UrbanInfluence | Urban Influence Code | Urban Influence Code for measuring rurality (2003 U.S. Department of Agriculture) | |
| TotPop00 | Population, 2000 | Census Total Population by County FIPS in 2000 | |
| TotPop01 | Population Estimate, 2001 | Census Total Population Estimate by County FIPS for 2001 | |
| TotPop02 | Population Estimate, 2002 | Census Total Population Estimate by County FIPS for 2002 | |
| TotPop03 | Population Estimate, 2003 | Census Total Population Estimate by County FIPS for 2003 | |
| TotPop04 | Population Estimate, 2004 | Census Total Population Estimate by County FIPS for 2004 | |
| TotPop05 | Population Estimate, 2005 | Census Total Population Estimate by County FIPS for 2005 | |