What city is ZIP code 20451?

20451 is a Washington, District of Columbia ZIP code.

What county is 20451 in?

ZIP code 20451 is in District of Columbia, District of Columbia.

What time zone is ZIP code 20451 in?

20451 is in the Eastern Time zone (America/New_York).

What area code is 20451?

Phone numbers in ZIP code 20451 use area code 202.

Can I use 20451 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 20451?

The nearest ZIP codes to 20451 are 20006 (Washington, 0.1 miles), 20431 (Washington, 0.1 miles), 20240 (Washington, 0.2 miles) and 20433 (Washington, 0.2 miles).

ZIP code 20451

Where is ZIP code 20451?

Washington, District of Columbia

District of Columbia · Unique ZIP code

ZIP code 20451 belongs to Washington, District of Columbia in District of Columbia. 20451 is a unique ZIP code assigned to a single organization (Arms Control And Disarm Agy) that gets a lot of mail. It is in the Eastern Time zone and uses area code 202. The closest ZIP codes are 20006 (Washington, 0.1 mi south), 20431 (Washington, 0.1 mi northeast) and 20240 (Washington, 0.2 mi east).

ZIP code	20451
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	38.8977, -77.0444 map
3-digit prefix	204

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 20451

ZIP code	City	Distance	Type
20006	Washington, DC	0.1 mi S	Standard
20431	Washington, DC	0.1 mi NE	Unique
20240	Washington, DC	0.2 mi E	Unique
20433	Washington, DC	0.2 mi NE	Unique
20503	Washington, DC	0.2 mi N	Unique
20456	Washington, DC	0.2 mi E	Unique
20435	Washington, DC	0.2 mi NE	Unique
20570	Washington, DC	0.3 mi NE	Unique
20052	Washington, DC	0.3 mi NW	Unique
20555	Washington, DC	0.3 mi NE	Unique
20523	Washington, DC	0.3 mi SW	Unique
20526	Washington, DC	0.3 mi N	Unique

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 20451 or measure the distance to another ZIP code.

How to address mail to 20451

JANE SMITH
123 MAIN ST
WASHINGTON DC 20451

Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (20451-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 20451?: 20451 is a Washington, District of Columbia ZIP code.
What county is 20451 in?: ZIP code 20451 is in District of Columbia, District of Columbia.
What time zone is ZIP code 20451 in?: 20451 is in the Eastern Time zone (America/New_York).
What area code is 20451?: Phone numbers in ZIP code 20451 use area code 202.
Can I use 20451 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 20451?: The nearest ZIP codes to 20451 are 20006 (Washington, 0.1 miles), 20431 (Washington, 0.1 miles), 20240 (Washington, 0.2 miles) and 20433 (Washington, 0.2 miles).