USA Structures This feature layer, utilizing Federal Emergency Management Agency (FEMA) data, displays footprints for all structures (buildings) greater than 450 square feet in the United States and its territories. According to FEMA, “FEMA’s Response Geospatial Office, Oak Ridge National Laboratory, and the U.S. Geological Survey collaborated to build and maintain the nation’s first comprehensive inventory of all structures larger than 450 square feet for use in Flood Insurance Mitigation, Emergency Preparedness and Response.”Note: these states and territories were updated in this cycle: Alabama, Alaska, Connecticut, Delaware, District of Columbia, Florida, Geogia, Hawaii, Iowa, Kansas, Kentucky, Louisiana, Maine, Michigan, Minnesota, Mississippi, Montana, Nebraska, New Hampshire, New Mexico, New York, North Carolina, North Dakota, Oregon, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Washington, West Virginia, Wisconsin, Wyoming, Puerto Rico, Virginia, Virgin Islands, Guam, American Samoa, and Northern Mariana Islands.Assembly Building in Dallas County, TexasData currency: June 6, 2025Data source: FEMA's USA Structures State GDB Download SiteData modification: added State FIPS, PROP_CNTY, and Global ID fields. The field type was changed from string to integer for POP_MEDIAN, POP_CI95_lower, POP_CI95_UPPER.For more information: USA StructuresSupport documentation:MetadataHazus Inventory Technical Manual For feedback please contact: Esri_US_Federal_Data@esri.com Federal Emergency Management Agency Per FEMA, “We leverage a tremendous capacity to coordinate within the federal government to make sure America is equipped to prepare for and respond to disasters.”