Coordinate Reference System

The dataset geometries are always delivered in EPSG 4326 (SRID=4326). This maximizes compatibility with popular database engines, such as:

• PostgreSQL (with PostGIS)
• Google BigQuery
• Snowflake
• Amazon Athena
• DuckDB
• and other engines.

Published File Formats

The dataset can be delivered in one of many formats, so choose the one that best suits your database engine, use case, and other business and technical requirements.

Instant Downloads

Two formats are produced automatically with quarterly releases and are available for download immediately after purchase:

• GeoPackage (.gpkg) — a single SQLite file that opens directly in QGIS, ArcGIS, ogr2ogr, and any standard GIS toolchain.
• GeoParquet (.parquet) — a columnar format for analytical engines such as DuckDB, BigQuery, Snowflake, and Athena.

No other format is available for instant download. Shapefile was retired with the 2026.2 release: the format's 8 GB per-file ceiling and 254-character field limit truncate long attributes such as legaldesc.

Custom Downloads

The following formats can be produced upon request:

• GeoJSON (newline-delimited)
• Geodatabase
• pg_dump file