Matches in the G category indicate that a match was made at the state, county, or city level.
| Code | Description |
|---|---|
| G1 | State match, point located at the state centroid. |
| G2 | County match, point located at the county centroid. |
| G3 | City match, point located at the city centroid. A number of prominent U.S cities can be matched even if no other information is provided. For example, if you provide Chicago (city) but no state, the record is matched to Chicago, IL. |