2010 National Geographic Tallies

Geographic Entities	United States
*There are 435 Congressional Districts and 1 Delegate at Large (DC)
American Indian/Alaska Native/Native Hawaiian Areas	695
Alaska Native Regional Corporations	12
Tribal Subdivisions	492
Tribal Tracts	480
Tribal Block Groups	914
Block Groups	217,740
Census Blocks	11,078,297
Census Tracts	73,057
Counties & Equivalents	3,143
County Subdivisions	35,703
Consolidated Cities	7
Places	29,261
Incorporated Places	19,540
Census Designated Places	9,721
Metropolitan and Micropolitan Statistical Areas and Related Statistical Areas
Metropolitan Statistical Areas	366
Micropolitan Statistical Areas	576
Metropolitan Divisions	29
Combined Statistical Areas	125
Metropolitan New England City and Town Areas (NECTAs)	21
Micropolitan New England City and Town Areas (NECTAs)	22
New England City and Town Area (NECTA) Divisions	9
Combined New England City and Town Areas (CNETCAs)	10
Congressional Districts	436*
State Legislative Districts
Upper	1,967
Lower	4,745
Voting Districts	177,808
School Districts	13,709
Elementary	2,304
Secondary	514
Unified	10,891
ZIP Code Tabulation Areas (ZCTAs)	32,989
Regions	4
Divisions	9
States & Equivalents	51