| Abbreviation | Definition |
|---|---|
| HCRP | Howard County Recreation and Parks |
| HCS | Haywood County Schools |
| HCSA | Halifax County Service Authority |
| HCSO | Hamilton County Sheriffs Office |
| HCSO | Hamilton County Sheriff's Office |
| HCSO | Harris County Sheriffs Office |
| HCSO | Hennepin County Sheriff's Office |
| HCSS | Hancock County School System |
| HCST | Hudson County Schools of Technology |
| HCTA | Host County Tax Authority |
| HCUA | Harrison County Utility Authority |
| HCUA | Hunterdon County Utilities Authority |
| HCWD | Hardin County Water District |
| HCY | Hunterdon County YMCA |
| HEA | Household Economic Approach |
| HFFC | Horseshoe Foundation of Floyd County |
| HFFC | Humanists and Freethinkers of Fairfield County |
| HFOC | HealthCare Foundation for Orange County |
| HFRC | Healthy Families Rockland County |
| HFTC | Healthy Families Travis County |