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1. United States Census Tracts, 2010

2010. TomTom North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). This polygon shapefile represents the U.S. Census tracts of the United States in the 50 states, the District of Columbia, and Puerto Rico. Data are... Environmental Systems Research Institute (Redlands, Calif.).

2. United States Core Based Statistical Areas, 2010

2010. U.S. Census Bureau. This polygon shapefile represents geographic entities, defined by the United States Office of Management and Budget (OMB) for use by Federal statis... Environmental Systems Research Institute (Redlands, Calif.).

3. United States Counties, 2010-2013

2010. TomTom North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). This polygon shapefile represents the counties of the United States in the 50 states, the District of Columbia, and Puerto Rico at 1:100,000 scale.... Environmental Systems Research Institute (Redlands, Calif.).

4. United States Parks, 2010-2014

2010. Tele Atlas (Firm : U.S.) and Environmental Systems Research Institute (Redlands, Calif.). This polygon shapefile contains the boundaries of parks, gardens, and forests within the United States at national, state, county, regional, and lo... Environmental Systems Research Institute (Redlands, Calif.).

5. United States Populated Place Areas, 2010

2010. U.S. Census Bureau. This polygon shapefile represents populated place areas within the United States that include both incorporated places and census designated places... Environmental Systems Research Institute (Redlands, Calif.).

6. U.S. States, 2007-2013

2010. TomTom North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). This polygon shapefile represents the 50 states, the District of Columbia, and Puerto Rico of the United States at 1:100,000 scale.This layer also ... Environmental Systems Research Institute (Redlands, Calif.).

7. U.S. States (Generalized) 2010-2013

2010. Environmental Systems Research Institute (Redlands, Calif.). This polygon shapefile contains the boundaries of the 50 states and the District of Columbia of the United States. Included are statistics on popul... Environmental Systems Research Institute (Redlands, Calif.).

8. U.S. Marine Protected Area Boundaries: MPA Inventory, 2010

2010. United States. Office of Ocean and Coastal Resource Management, National Marine Protected Areas Center (U.S.), United States. Department of Commerce, and United States. National Oceanic and Atmospheric Administration. This polygon shapefile represents the Marine Protected Areas inventory as of March 2010. The MPA Inventory is a comprehensive geospatial database t... National Marine Protected Areas Center (U.S.).

9. ZIP Code Boundaries, United States (Q3 2010)

2010. TTG, Inc. This polygon shapefile contains zip code boundaries for the United States. Data are valid from July to September, 2010. Attributes included in the ... TTG, Inc.

10. ZIP Code Boundaries, United States (Q4 2010)

2010. TTG, Inc. This polygon shapefile contains zip code boundaries for the United States. Data are valid from October to December, 2010. Attributes included in th... TTG, Inc.

11. Nonattainment Areas for Sulfur Dioxide Pollution, United States and Territories, 2010

2010. United States. Bureau of Transportation Statistics and Stackhouse, Cecil. This polygon shapefile depicts nonattainment and maintenance areas for the United States and its Territories for the enforcement of the sulfur diox... United States. Bureau of Transportation Statistics.

12. Poverty Census Tracts, 2010

2010. United States. Department of Housing and Urban Development. This polygon shapefile represents 2010 U.S. Census Tracts with a 39% Poverty Rate or Greater. Data Current as of: November 10, 2014.This layer is i... United States. Department of Housing and Urban Development.