The 2010 Census Block Map Series, also referred to as the Geographic Unit (GU) block maps, is produced to support the 2010 Decennial Census data release. These maps display tabulation geography down to the census block level. The 2010 Census Block Maps are produced for the following entities: counties and statistically equivalent entities, minor civil divisions (MCDs), census county divisions (CCDs) and statistically equivalent entities, incorporated places, census designated places (CDPs), consolidated cities, sub-MCDs, federal American Indian reservations, state American Indian reservations, Oklahoma tribal statistical areas (OTSAs), Alaska Native village statistical areas (ANVSAs), tribal designated statistical areas (TDSAs), state designated tribal statistical areas (SDTSAs), tribal subdivisions, and Hawaiian home lands (HHLs).

These large-scale maps show the boundaries and numbers for all census blocks within an entity. In addition to state and county, these maps show the boundaries, names and codes for American Indian areas, Alaska Native areas, Hawaiian home lands, county subdivisions, places and census tracts. These maps also show and label base features, such as roads, railroads and hydrography. The intent of this series is to show each entity on the fewest number of map sheets possible and at the maximum practical scale, depending on the size and shape of the entity and the density of the census blocks it contains. Census block density affects the display of the census blocks numbers and feature identifiers. Each entity is covered by one or more parent map sheets at a single scale. Inset map sheets at larger scales were created as required to show the map content described above. An index map showing the sheet configuration is included for all entities requiring more than one parent map sheet. The map sheet size is 36 x 32 inches.

Each map is accompanied by a Census Block to Map Sheet relationship file. These semicolon-delimited text files include a record for each census block within the entity, consisting of the corresponding state, county, census tract, and census block codes for the block and a list of all map sheet numbers that the block appears on for that map. When the map entity is a federal American Indian reservation or a tribal subdivision, the Census Block to Map Sheet relationship file also includes the related tribal census tract and tribal block group for each census block.

These map files are in Portable Document Format (PDF) and were designed to be viewed with Adobe® Reader® , which is available free from Adobe. If your browser opens them in another PDF reader, the screen display may not accurately reproduce the map.

American Indian, Alaska Native, and Native Hawaiian Areas

Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
District of Columbia
Florida
Georgia
Hawaii
Idaho
Illinois
Indiana

Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
New Hampshire

New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
Puerto Rico
Rhode Island
South Carolina
South Dakota
Tennessee
Texas

Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming

American Samoa
Guam
Northern Mariana Islands
U.S. Virgin Islands