What city is ZIP code 20504?

20504 is a Washington, District of Columbia ZIP code.

What county is 20504 in?

ZIP code 20504 is in District of Columbia, District of Columbia.

What time zone is ZIP code 20504 in?

20504 is in the Eastern Time zone (America/New_York).

What area code is 20504?

Phone numbers in ZIP code 20504 use area code 202.

Can I use 20504 for a street address?

Only for mail to the organization it is assigned to. Other addresses in Washington use a standard ZIP code.

What ZIP codes are near 20504?

The nearest ZIP codes to 20504 are 20013 (Washington, 0 miles), 20026 (Washington, 0 miles), 20029 (Washington, 0 miles) and 20030 (Washington, 0 miles).

ZIP code 20504

Where is ZIP code 20504?

Washington, District of Columbia

District of Columbia · Unique ZIP code

ZIP code 20504 belongs to Washington, District of Columbia in District of Columbia. 20504 is a unique ZIP code assigned to a single organization (National Security Counsel) that gets a lot of mail. It is in the Eastern Time zone and uses area code 202. The closest ZIP codes are 20013 (Washington, 0 mi north), 20026 (Washington, 0 mi north) and 20029 (Washington, 0 mi north).

ZIP code	20504
Type	Unique ZIP code for a single organization
Status	Active
City	Washington
State	District of Columbia (DC)
County	District of Columbia
Time zone	Eastern Time · now
Area code	202
Coordinates	38.8933, -77.0146 map
3-digit prefix	205

The Census Bureau doesn’t publish population figures for unique ZIP codes because nobody lives at a PO Box or a single organization’s address. For figures about the area, see the nearby standard ZIP codes below.

ZIP codes near 20504

ZIP code	City	Distance	Type
20013	Washington, DC	0 mi N	PO Box only
20026	Washington, DC	0 mi N	PO Box only
20029	Washington, DC	0 mi N	PO Box only
20030	Washington, DC	0 mi N	PO Box only
20033	Washington, DC	0 mi N	PO Box only
20035	Washington, DC	0 mi N	PO Box only
20038	Washington, DC	0 mi N	PO Box only
20039	Washington, DC	0 mi N	PO Box only
20040	Washington, DC	0 mi N	PO Box only
20041	Washington, DC	0 mi N	PO Box only
20042	Washington, DC	0 mi N	Unique
20043	Washington, DC	0 mi N	PO Box only

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 20504 or measure the distance to another ZIP code.

How to address mail to 20504

JANE SMITH
123 MAIN ST
WASHINGTON DC 20504

Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (20504-XXXX) helps mail sort faster but isn’t required.

Other ZIP codes in Washington, DC

All Washington ZIP codes with population and income →

Questions

What city is ZIP code 20504?: 20504 is a Washington, District of Columbia ZIP code.
What county is 20504 in?: ZIP code 20504 is in District of Columbia, District of Columbia.
What time zone is ZIP code 20504 in?: 20504 is in the Eastern Time zone (America/New_York).
What area code is 20504?: Phone numbers in ZIP code 20504 use area code 202.
Can I use 20504 for a street address?: Only for mail to the organization it is assigned to. Other addresses in Washington use a standard ZIP code.
What ZIP codes are near 20504?: The nearest ZIP codes to 20504 are 20013 (Washington, 0 miles), 20026 (Washington, 0 miles), 20029 (Washington, 0 miles) and 20030 (Washington, 0 miles).