| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Hamburgh (historical) | city | District of Columbia | United States | 38.89 | -77.05 | 3 | |
| Hampshire Knolls | city | District of Columbia | United States | 38.96 | -77.00 | 131 | |
| Harlem (historical) | city | District of Columbia | United States | 38.91 | -77.08 | 62 | |
| Hawthorne | city | District of Columbia | United States | 38.98 | -77.05 | 249 | |
| Hells Bottom (historical) | city | District of Columbia | United States | 38.90 | -77.06 | 26 | |
| Hillcrest | city | District of Columbia | United States | 38.86 | -76.96 | 157 | |
| Historic Anacostia | city | District of Columbia | United States | 38.87 | -76.98 | 147 | |
| Hoa Thịnh Đốn | city | District of Columbia | United States | 38.90 | -77.04 | 9 | |
| Huà-sêng-dáung, D.C. | city | District of Columbia | United States | 38.90 | -77.04 | 9 | |
| Hƿæsingatūn | city | District of Columbia | United States | 38.90 | -77.04 | 9 |