A Resource for the Protected Areas Database of the United States (PAD-US)

Data Stewards

PAD-US contains data developed by many stewards, including federal agencies, state-focused agencies and organizations, and national nongovernmental organizations – learn more about the USGS PAD-US partners program here.

Here’s a summary illustration of the current state of PAD-US data.  Access a map view and a PDF report for steward agencies below – federal agencies are in the table, on the map below that click on any state for a more detailed view of that state’s data.  Note that the ranking of  “complete” means between 95 and 100 percent complete – all ranks are general estimates.


14 federal agencies contribute land, water, and boundary information to PAD-US.  Individual federal agency completeness estimates below balance acres inventoried and quality of data/attributes in each inventory, including fee parcels, easement interests and major designations:

National Park Service Natural Resources Conservation Service
Forest Service Department of Energy
Fish and Wildlife Service Agricultural Research Service
Bureau of Land Management Tennessee Valley Authority
Army Corps of Engineers Bureau of Ocean Energy Management
Department of Defense National Oceanic and Atmospheric Administration
Bureau of Reclamation Census Bureau (state lines)



National nonprofits collaborate with USGS to leverage resources and contribute elements of projects for PAD-US:

TPL and Ducks Unlimited also lead the National Conservation Easement Database which provides this data to PAD-US.


Use the visualization below to explore for state stewards: Completeness is the estimate of the degree to which all fee simple protected areas are inventoried for the state, plus qualitative consideration for overall accuracy (alignment, attribute completion) of the data.  Estimates of easement inventory completion are available from the National Conservation Easement Database. Update Year is the most recent year a state’s data was updated in PAD-US or the year an update is expected (not all states can be updated every year). Capacity is a qualitative indication of the programmatic robustness of the State Steward’s ability to support PAD-US updates (data availability, consistency, budget, commitment, etc.).


Type State Steward Contact Last Update