| Map Naming Convention | ||
| 1 | Data Type | |
| D | Demographic data | |
| C | Case data | |
| A | Access - Case and Demographic data together | |
| S | Special data | |
| 2 | Extent | |
| N | National | |
| S | State or a multi-grantee region | |
| G | Grantee service area | |
| C | County | |
| L | Local, grantee sub-area or other | |
| 3 | Mapping Unit | |
| S | State | |
| C | County | |
| Z | Zip code | |
| T | census Tract | |
| G | census block Group | |
| B | census Block | |
| R | Service Region | |
| P | Point location | |
| O | Other |