Eau Claire, WI
Metropolitan Statistical Area
MSA code 20740 is the Eau Claire, WI, a Metropolitan Statistical Area defined by the Office of Management and Budget (OMB). It encompasses 2 counties. This code is used by the BLS, Census Bureau, HUD, and BEA to publish labor market, demographic, and economic data at the metropolitan area level — distinct from the individual county FIPS codes used for county-level data.
MSA Code
20740
Type
Metro SA
Component Counties (2)
OMB designates each county in a Core Based Statistical Area as either central — containing the urban core that anchors the metro — or outlying, meaning it qualifies based on commuting ties to the central counties. Both types are included in MSA-level data published by federal agencies. Click any county to see its individual 5-digit FIPS code and data profile.
| County | FIPS Code |
|---|---|
| Eau Claire County | 55035 |
| Chippewa County | 55017 |
Federal Datasets Using MSA Code 20740
Several major federal datasets publish directly at the MSA level using this 5-digit code rather than individual county FIPS codes. Note that MSA codes and county FIPS codes are separate namespaces — never join an MSA code against a county FIPS column. To work with county-level data within this metro, use the individual county FIPS codes listed above.