word | | Area - comparative |
| Washington | Andorra | 2.5 times the size of Washington, DC |
| Washington | Anguilla | about one-half the size of Washington, DC |
| Washington | Antigua and Barbuda | 2.5 times the size of Washington, DC |
| Washington | Aruba | slightly larger than Washington, DC |
| Washington | Ashmore and Cartier Islands | about eight times the size of The Mall in Washington, DC |
| Washington | Bahrain | 3.5 times the size of Washington, DC |
| Washington | Barbados | 2.5 times the size of Washington, DC |
| Washington | Bermuda | about one-third the size of Washington, DC |
| Washington | Bouvet Island | about 0.3 times the size of Washington, DC |
| Washington | British Indian Ocean Territory | land area is about 0.3 times the size of Washington, DC |
| Washington | British Virgin Islands | about 0.9 times the size of Washington, DC |
| Washington | Cayman Islands | 1.5 times the size of Washington, DC |
| Washington | Christmas Island | about three-quarters the size of Washington, DC |
| Washington | Clipperton Island | about 12 times the size of The Mall in Washington, DC |
| Washington | Cocos (Keeling) Islands | about 24 times the size of The Mall in Washington, DC |
| Washington | Comoros | slightly more than 12 times the size of Washington, DC |
| Washington | Cook Islands | 1.3 times the size of Washington, DC |