Frequently Asked Questions About ZIP Code 20340
FAQs and quick facts on ZIP Code 20340
See answers to frequently asked questions about 20340 (Washington, DC)
1
What region of the U.S. is ZIP Code 20340 associated with?
The 20340 ZIP Code is primarily associated with Washington, DC in the United States.
2
What U.S. county is ZIP Code 20340 located in?
The 20340 ZIP Code is located in District of Columbia County in the state of District of Columbia.
3
Which area codes are associated with ZIP Code 20340?
Telephone area codes that are frequently associated with ZIP Code 20340 include: No associated area codes were found for ZIP Code 20340.
4
How is the air quality in ZIP Code 20340?
The current air quality level in ZIP Code 20340, according to the Common Air Quality Index (CAQI) air quality index, is: Good.
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