| Abbreviation | Definition |
|---|---|
| KCIW | King County Industrial Waste |
| KCJC | Kenosha County Job Center |
| KCJC | Kent County Junior Choir |
| KCJC | Kings County Juvenile Center |
| KCLS | King County Library System |
| KCNA | Kern County Narcotics Anonymous |
| KCNC | Kern County Network for Children |
| KCOA | Kent County Osteopathic Association |
| KCP | Kingdom County Productions |
| KCPS | Kent County Public Schools |
| KCPS | Knox County Public Schools |
| KCRC | Kent County Road Commission |
| KCRC | Kings County Radio Club |
| KCRC | Knox County Radio Control |
| KCRL | Knox County Right to Life |
| KCSO | Kendall County Special Olympics |
| KCSO | King County Sheriffs Office |
| KGCB | Keep Genesee County Beautiful |
| KGCB | Keep Greenville County Beautiful |
| KHCB | Keep Huntingdon County Beautiful |