Our spatial boundary products are structured for use within common geographic information systems (GIS) and for loading into relational database systems.
| Geographic Availability | United States |
| Geographic Tiling | Country |
| Update Frequency | Quarterly |
| Character Set | UTF-8 |
| Datum | WGS84 (SRID=4326) |
Format availability
| GIS | Esri Shapefile (SHP), MapInfo Extended TAB (XTAB) |
| Database-loadable | MySQL, PostGIS, WKT |
| Non-spatial tables | CSV, DBF, MySQL, Postgres |