Washington, DCZIP code 20422 is located in Washington, D.C. and is home to the United States Naval Observatory. This prestigious observatory is responsible for maintaining the official time for the country and houses the Vice President's residence. The ZIP code also includes the National Cathedral, an iconic landmark known for its stunning Gothic architecture and vibrant religious community. |
ZIP code 20422Washington, DCUnited StatesUS > DC > District of Columbia County > 20422 Daylight Saving:
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