Smoothed shapefiles are variations of the more detailed DMD polygon/area shapefiles.

 

The smoothing process removes more detailed vertices relative to the more detailed DMD shapefiles.

 

Areas in smoothed shapefiles are truncated at ocean shorelines and Great Lake shorelines.

 

NATION National outline

REGION National Region (Northeast, Southeast, Midwest and West)

DIVISION National Division (Subdivisions of Regions)

STATE State and Equivalent

 

Metropolitan Areas

CBSA Metropolitan Statistical Area / Micropolitan Statistical Area

CSA Combined Statistical Area

CNECTA Combined New England City and Town Area

NECTA New England City and Town Area

 

PUMA10 Public Use Microdata Area

UA10 Urban Area/Urban Cluster (Census 2010)

 

Congressional Districts & State Legislative Districts

CD115 Congressional District (115th Congress)

SLDL State Legislative District – Lower Chamber

SLDU State Legislative District – Upper Chamber

 

COUNTY County

COUNTY-CD115 Portion of county within a congressional district

COUNTY-UA Portion of county within an urban area

CONCITY Consolidated City

COUSUB County Subdivision

 

SD School Districts

 

PLACE Place

 

AIANNH American Indian / Alaska Native / Native Hawaiian Areas

ANRC Alaska Native Regional Corporation

SUBBARRIO Subbarrio – Legally defined subdivisions of county subdivisions in Puerto Rico

 

TRACT Census Tract

ZCA 5-Digit ZIP Code Tabulation Area (Census 2010)

BG Block Group