20540 Zip code is used for Library Of Congress Area Code City in District Of Columbia County, District Of Columbia in Usa. The ZIP Codes / Postal Codes are Used by USPS (United States Postal Service known as “Post Office”, “ Usa Mail”, or” Postal Service”, an independent agency of the United States federal government responsible for providing postal service in the United States). Below is the detail for 20540, Library Of Congress Area Code City.
| Zip Code | : | 20540 |
| City Name | : | Library Of Congress Area Code |
| County Name | : | District Of Columbia County |
| State Name | : | District Of Columbia |
| Country Name | : | USA |
| Area Code | : | 202 |
| Time Zone | : | EST |
| Country Code | : | +1 |
| Currency | : | $ USA Dollor |
| ISO Code | : | USA |