is a Data Source.
Homeland Infrastructure Foundation-Level Data (HIFLD) is a U.S. Department of Homeland Security program that provides national geospatial datasets describing the location and attributes of critical infrastructure across the United States. Datasets cover sectors such as hospitals and public health facilities, emergency medical and fire services, law enforcement, energy and utilities, transportation, and communications. The data are distributed as an ArcGIS Hub open-data catalog with downloads in formats including CSV, GeoJSON, KML, and shapefile, and via GeoServices/WMS/WFS APIs. HIFLD is an upstream source of the KnowWhereGraph.
public health, general, information technology
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| ID | Name | URL | Category | Format | Description |
|---|---|---|---|---|---|
| hifld.catalog | HIFLD Open Data Catalog | search | Product | csv | HIFLD ArcGIS Hub open-data catalog of... |
| hifld.api | HIFLD Open Data API | hifld-geoplatform.opendata.arcgis.com | ProgrammingInterface | http | ArcGIS Hub open-data API access to HI... |
| ID | Name | URL | Category | Format | Relation | Description |
|---|---|---|---|---|---|---|
| knowwheregraph.graph | KnowWhereGraph RDF Knowledge Graph | knowwheregraph.org | GraphProduct | rdfxml | had primary source | KnowWhereGraph knowledge graph with 2... |
Homeland Infrastructure Foundation-Level Data (HIFLD) is a program of the U.S. Department of Homeland Security (DHS) that assembles and shares national geospatial datasets describing critical infrastructure across the United States. It is delivered as an ArcGIS Hub open-data platform where users can discover, analyze, and download individual layers.
HIFLD layers span many critical-infrastructure sectors, including:
Datasets are available through the ArcGIS Hub catalog with downloads in formats such as CSV, GeoJSON, KML, GeoTIFF, and shapefile, and through GeoServices, WMS, and WFS API endpoints.
Many HIFLD layers are derived from U.S. federal sources and are in the public domain, but some individual layers carry use restrictions or are access-controlled. License terms vary by layer, so the resource-level license is recorded here as Not specified; consult each dataset’s metadata for its specific terms.
HIFLD is an upstream data source used by the KnowWhereGraph, contributing critical-infrastructure and human-systems geospatial layers.
Created: June 18, 2026 | Last modified: June 18, 2026