About ZIP code 20401
The ZIP code 20401 routes mail to Washington in the District of Columbia region of United States. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.
United States · ZIP code
20401 - Washington
ZIP code 20401 is Washington in District of Columbia, United States.
| ZIP code | 20401 |
| Place | Washington |
| Region | District of Columbia |
| District | District of Columbia |
| Country | United States (US) |
| Coordinates | 38.8933, -77.0146 (map) |
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Frequently Asked Questions
ZIP code 20401 explained
Which city is ZIP code 20401 in?
ZIP code 20401 is Washington in District of Columbia, United States.
What are the coordinates of 20401?
The approximate centre of 20401 is at latitude 38.8933, longitude -77.0146.
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