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The demographics theme looks at some of the human population characteristics in the study area. This is important when deciding on future visions of how one's county will look.

Watersheds

A data set used to show watershed boundaries. A watershed includes all the land where water, from rain or runoff, drains to a specific river or water body. Ridges of high land separate watersheds from each other. Also, every waterway has its own watershed and every person lives within a watershed. For example, if rain that falls on your yard flows down the street and into a creek that eventually ends in the Hillsborough River, then you live in the Hillsborough Watershed. This data set was developed using US Geological Survey data for 8-digit hydrologic unit codes (HUCs) (this size shows watersheds for large rivers). Information for smaller watersheds (i.e. 11-digit HUCs which includes smaller streams) can be found at Site1. For information on pollution sources within your watershed, check out EPA's Surf Your Watershed at Reference 2.
Reference 1 , Reference 2 ,  Reference 3 , Funding Information    (search by #  10.906  or Watershed )   

States

The states data set shows state boundaries and serves as a visual reference to identify natural resources that may cross state lines. To adequately protect your community's resources within the SEF may require a collaborative effort with neighboring counties may be required. This is important for developing strategies for resource protection efforts in approximately 150 watersheds that cross over state lines. For additional information on counties you can link to the census bureau at Site.
Reference 1 ,  Funding Information    (search by #  15.916  or Outdoor recreation )   

Counties

The county data set shows the county boundaries. This provides a visual reference for identifying locations on the map and navigating around the other data sets. To adequately protect your community's resources within the SEF may require a collaborative effort with neighboring counties may be required. For additional information on counties you can link to the census bureau at Reference 1.
Reference 1 , Funding Information     (search by #  10772  or Empowerment zones )  

Cities

The cities data set shows municipal boundaries for cities and towns. This data can be used to identify locations where land development is moving away from the city's center and may be threatening water and ecological resources or contributing to habitat fragmentation. The data may also be used to design urban greenways and trails that tie into the larger ecological hub and corridor system. This not only provides recreational opportunities for residents and visitors, it helps maintain the health and vitality of the local watershed and surrounding habitats. For additional information on cities you can link to the census bureau at Site1.
Reference 1 ,  Funding Information     (search by #  66.811  or Brownfields )   

Highways

The highways data set shows the Major Highways (based upon the 1995 Tiger database) within the specific map area. Highways serve as reference points to locate areas on the map. Combining the highways set with the SEF data sets allows you to easily identify locations where ecological areas are being fragmented or will be fragmented by future highway and land development. For more information on the Tiger data base and documentation go to Site1.
Reference 1 ,  Funding Information

EJ

The Environmental Justice (EJ) data set shows the location of low-income and minority populations in each county. This information can be used to make sure planning decisions do not adversely impact these populations and to identify diverse members for stakeholder groups. The EJ program ensures that all people, regardless of race, color, national origin, or income, are treated fairly with respect to the development, implementation, and enforcement of environmental laws, regulations, and policies. For more information on the EJ program, go to Site1.
Reference 1 ,  Reference 2 ,  Funding Information    

Population_Change

This layer identifies the change in population between 1990 and 1997. Many other population attributes are available by querying this data layer. The spatial resolution for the data is based on the census tract level. Additional information can be obtained from the 2000 Census at Site1.
Reference 1 ,  Funding Information     (search by #  66.460  or Nonpoint source )