| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Northumberland | city | New Hampshire | United States | 44.56 | -71.56 | 902 | |
| Northumberland | city | New York | United States | 43.13 | -73.59 | 157 | |
| Northumberland | city | Pennsylvania | United States | 40.89 | -76.80 | 830 | |
| Northumberland (historical) | city | Nevada | United States | 38.95 | -116.85 | 8389 | |
| Northumberland (historical) | city | Ohio | United States | 40.45 | -84.18 | 990 | |
| Northup | city | Ohio | United States | 38.78 | -82.28 | 830 |