| Abbreviation | Definition |
|---|---|
| GCEA | Gunnison County Electric Association |
| GCED | Goodhue County Education District |
| GCFN | Green County Fall Nationals |
| GCFR | Gordon County Fire Rescue |
| GCH | Guthrie County Hospital |
| GCHA | Garfield County Housing Authority |
| GCHA | Grand County Historical Association |
| GCHA | Grand County Housing Authority |
| GCHA | Grundy County Housing Authority |
| GCHN | Gaston County Homeschool Network |
| GCHS | Giles County High School |
| GCHS | Grayson County High School |
| GCHS | Green County High School |
| GCHS | Greenup County High School |
| GCIT | Gloucester County Institute of Technology |
| GCMA | Greenville County Museum of Art |
| GCMC | Grand Cape Mount County |
| GCNA | Gloucestershire County Netball Association |
| GCPA | Genesee County Pharmacists Association |
| GCPS | Garrett County Public Schools |