HIFLD Open (archived)

A national collection of foundational U.S. GIS layers (infrastructure and natural features) originally compiled from many federal agencies. The full repository—now offline—has been preserved in DataLumos as a snapshot (August 2025), useful for emergency management, planning, and general GIS analysis.

Online Newly Updated Datasets

How to find mappable census data? Please go to Explore Census Data to find tables which can be added to your maps.

Learn how to extract data in form of CSV (table) at: DATA GEMS: How to Navigate data.census.gov 

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This list is by no means all-inclusive. 

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