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1. UA Census Block Groups, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. The polygons represent U.S. Census Block Groups for the state based on the ground condition of January 1, 2000. Block Groups (BGs) are clusters of ...

2. UA Census Blocks, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. The polygons in this datalayer represent U.S. Census Blocks for the entire state. Census blocks are statistical areas bounded on all sides by visib...

3. UA Census Collection Blocks, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. The polygons in this datalayer represent Census Collection Blocks for the entire state. To improve operational efficiency and geographic identifica...

4. UA Census Congressional Districts, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. The polygons represent Congressional Districts for the state based on the congressional districts in effect at the time of Census 2000, which are t...

5. UA Census Counties, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the counties for the state, based on a ground condition of January 1, 2000. The primary legal divisions of most states are ...

6. UA Census County Subdivisions, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays County Subdivisions (Minor Civil Divisions) for the state, based on legal and statistical entities established on January 1...

7. UA Census Key Geographic Locations, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Key Geographic Locations (KGLs), as defined by the US Census Bureau, throughout the state. Essential attribute data include...

8. UA Census Landmark Polygon Features, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays polygon landmark features throughout the state. 'Landmark' is the general name given to a cartographic (or locational) land...

9. UA Census Metropolitan Statistical Areas, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Metropolitan Statistical Areas (MSAs) for the state. MSAs are Metropolitan Areas (MAs) that are not closely associated with...

10. UA Census Places, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Census Places for the state based on the ground condition of January 1, 2000. Places, for the reporting of decennial ce...

11. UA Census Primary Metropolitan Statistical Areas, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Primary Metropolitan Statistical Areas (PMSA) for the state. If an area that qualifies as a Metropolitan Area (MA) has more...

12. UA Census Public Use Microdata Areas, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Public Use Microdata Areas (PUMAs) for the state. A public use microdata area is a decennial census area for which the ...

13. UA Census Tracts, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census Tracts for the state, based on boundaries established on January 1, 2000. Census tracts are small, relatively perman...

14. UA Census Traffic Analysis Zones, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. Traffic analysis zones (TAZs) are special-purpose geographic entities delineated by state and local transportation officials for tabulating traffic...

15. UA Census Unified School Districts, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Unified School Districts for the entire state. A unified school district is inclusive of kindergarten through twelfth g...

16. UA Census Urbanized Areas, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Urbanized Areas (UAs) for the state based on a January 1, 2000 ground condition. Note that the Census Bureau made signi...

17. UA Census Voting Districts, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Voting Districts (VTDs) for the state based on a ground condition of January 1, 2000. Voting district (VTD) is the gene...

18. UA Census Voting Districts, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays water bodies throughout the state. This category includes lakes, ponds, bays, rivers, reservoirs and other water features. ...

19. UA Census Zip Code Tabulation Areas, 2000 - Maryland

Polygon Harvard University Public content
2000. U.S. Department of Commerce, Bureau of the Census, Geography Division. The polygons in this datalayer represent ZIP Code Tabulation Areas (ZCTAs) for the entire state. ZCTAs are a new statistical entity developed by th...

20. Census Block Groups, 1995 - Maryland

Polygon Harvard University Public content
1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. The polygons represent U.S. Census Block Groups for the state. A Block Group (BG) is a cluster of census blocks having the same first digit of thei...

21. Census Blocks, 1995 - Maryland

Polygon Harvard University Public content
1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. The polygons in this datalayer represent U.S. Census Blocks for the entire state. Census blocks are areas bounded on all sides by visible features,...

22. Census Congressional Districts, 1995 - Maryland

Polygon Harvard University Public content
1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. The polygons represent Congressional Districts (104th Congress) for the entire state. Congressional districts (CDs) are the 435 areas from which pe...

23. Census County Divisions and Minor Civil Divisions, 1995 - Maryland

Polygon Harvard University Public content
1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions for the entire state. Census County Divisions (CCDs) are county subdivisi...

24. Census Key Geographic Locations, 1995 - Maryland

Polygon Harvard University Public content
1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Key Geographic Locations (KGLs) throughout the state, as definded by the US Census Bureau. Essential attribute data inc...

25. Census Landmark Polygon Features, 1995 - Maryland

Polygon Harvard University Public content
1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays polygon landmark features throughout the state. 'Landmark' is the general name given to a cartographic (or locational) land...

26. Census Metropolitan Statistical Areas, 1995 - Maryland

Polygon Harvard University Public content
1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Metropolitan Statistical Areas (MSA) for the state. Metropolitan statistical areas (MSAs) are metropolitan areas (MAs) that...

27. Census Primary Metropolitan Statistical Areas, 1995 - Maryland

Polygon Harvard University Public content
1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Primary Metropolitan Statistical Areas (PMSA) for the state. If an area that qualifies as a metropolitan area (MA) has 1 mi...

28. Census Tracts, 1995 - Maryland

Polygon Harvard University Public content
1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census Tracts for the state. Census tracts are small, relatively permanent statistical subdivisions of a county or statisti...

29. Census Traffic Analysis Zones, 1995 - Maryland

Polygon Harvard University Public content
1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Traffic Analysis Zones (TAZ) for the state. A traffic analysis zone (TAZ) is a statistical entity delineated by state o...

30. Census Unified School Districts, 1995 - Maryland

Polygon Harvard University Public content
1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Unified School Districts for the entire state. A unified school district is inclusive of kindergarten through twelfth g...

31. Census Urbanized Areas, 1995 - Maryland

Polygon Harvard University Public content
1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Urbanized Areas (UAs) for the state. The Census Bureau defines UAs as an area consisting of a central place(s) and adja...

32. Census Voting Districts, 1995 - Maryland

Polygon Harvard University Public content
1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Voting Districts throughout the state. A Voting District (VTD) is the generic name for a variety of geographic entities...

33. Census Water Bodies, 1995 - Maryland

Polygon Harvard University Public content
1995. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays water bodies throughout the state. This category includes lakes, ponds, bays, rivers, reservoirs and other water features. ...

34. Census Counties, 1990 - Maryland

Polygon Harvard University Public content
1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the counties for the state, based on a ground condition of January 1, 1990. The primary legal divisions of most states are ...

35. Census County Divisions and Minor Civil Divisions, 1990 - Maryland

Polygon Harvard University Public content
1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census County Divisions and Minor Civil Divisions based on the 1990 Census. Census county divisions (CCDs) are county subdi...

36. Census Places, 1990 - Maryland

Polygon Harvard University Public content
1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Census Places for the state based on the ground condition of January 1, 1990. Places, for the reporting of decennial ce...

37. UA Census Block Groups, 1990 - Maryland

Polygon Harvard University Public content
1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. The polygons represent U.S. Census Block Groups for the state based on the ground condition of January 1, 1990. Block Groups (BGs) are clusters of ...

38. UA Census Blocks, 1990 - Maryland

Polygon Harvard University Public content
1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. The polygons in this datalayer represent U.S. Census Blocks for the entire state. Census blocks are statistical areas bounded on all sides by visib...

39. UA Census Congressional Districts, 1990 - Maryland

Polygon Harvard University Public content
1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. The polygons represent Congressional Districts for the state based on the boundaries established on January 1, 1990. Congressional districts are th...

40. UA Census Counties, 1990 - Maryland

Polygon Harvard University Public content
1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the counties for the state, based on a ground condition of January 1, 1990. The primary legal divisions of most states are ...

41. UA Census County Subdivisions, 1990 - Maryland

Polygon Harvard University Public content
1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays County Subdivisions (Minor Civil Divisions) for the state, based on legal and statistical entities established on January 1...

42. UA Census Places, 1990 - Maryland

Polygon Harvard University Public content
1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Census Places for the state based on the ground condition of January 1, 1990. Places, for the reporting of decennial ce...

43. UA Census Tracts, 1990 - Maryland

Polygon Harvard University Public content
1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays Census Tracts for the state, based on entity boundaries established on January 1, 1990. Census tracts are small, relatively...

44. UA Census Urbanized Areas, 1990 - Maryland

Polygon Harvard University Public content
1990. U.S. Department of Commerce, Bureau of the Census, Geography Division. This datalayer displays the Urbanized Areas (UAs) for the state based on a January 1, 1990 ground condition. Note that the Census Bureau made signi...