US Census TIGER/Line

.rt1

Supported

TIGER/Line (Topologically Integrated Geographic Encoding and Referencing) is a series of geographic data products published by the US Census Bureau. TIGER data includes road networks, administrative boundaries, census areas, hydrographic features, and more, representing one of the most comprehensive public geographic datasets in the United States. RT1 is the classic exchange format for TIGER/Line data.

Specifications

Standard: US Census Bureau

MIME: application/octet-stream

Key Features

US Census Bureau official data covering the entire United States
Contains rich features including road networks, administrative boundaries, and census areas

Advantages

Free and public, one of the most authoritative US geographic data sources

Limitations

Only covers US territory
Limited coordinate precision, not suitable for precise surveying

Common Use Cases

US administrative boundary and demographic analysis
US road network and address matching

Related Tools

RT1 → GEOJSON