What city is ZIP code 20431?

20431 is a Washington, District of Columbia ZIP code.

What county is 20431 in?

ZIP code 20431 is in District of Columbia, District of Columbia.

What time zone is ZIP code 20431 in?

20431 is in the Eastern Time zone (America/New_York).

What area code is 20431?

Phone numbers in ZIP code 20431 use area codes 202 and 771.

Can I use 20431 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 20431?

The nearest ZIP codes to 20431 are 20433 (Washington, 0.1 miles), 20451 (Washington, 0.1 miles), 20435 (Washington, 0.1 miles) and 20240 (Washington, 0.1 miles).

ZIP code 20431

Where is ZIP code 20431?

Washington, District of Columbia

District of Columbia · Unique ZIP code

ZIP code 20431 belongs to Washington, District of Columbia in District of Columbia. 20431 is a unique ZIP code assigned to a single organization (International Monetary Fund) that gets a lot of mail. It is in the Eastern Time zone and uses area codes 202 and 771. The closest ZIP codes are 20433 (Washington, 0.1 mi northeast), 20451 (Washington, 0.1 mi southwest) and 20435 (Washington, 0.1 mi east).

ZIP code	20431
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 codes	202, 771
Coordinates	38.8986, -77.0428 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 20431

ZIP code	City	Distance	Type
20433	Washington, DC	0.1 mi NE	Unique
20451	Washington, DC	0.1 mi SW	Unique
20435	Washington, DC	0.1 mi E	Unique
20240	Washington, DC	0.1 mi SE	Unique
20503	Washington, DC	0.1 mi N	Unique
20570	Washington, DC	0.1 mi E	Unique
20456	Washington, DC	0.1 mi E	Unique
20555	Washington, DC	0.2 mi NE	Unique
20006	Washington, DC	0.2 mi SW	Standard
20232	Washington, DC	0.2 mi NE	Unique
20526	Washington, DC	0.3 mi N	Unique
20506	Washington, DC	0.3 mi E	Unique

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 20431 or measure the distance to another ZIP code.

How to address mail to 20431

JANE SMITH
123 MAIN ST
WASHINGTON DC 20431

Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (20431-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 20431?: 20431 is a Washington, District of Columbia ZIP code.
What county is 20431 in?: ZIP code 20431 is in District of Columbia, District of Columbia.
What time zone is ZIP code 20431 in?: 20431 is in the Eastern Time zone (America/New_York).
What area code is 20431?: Phone numbers in ZIP code 20431 use area codes 202 and 771.
Can I use 20431 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 20431?: The nearest ZIP codes to 20431 are 20433 (Washington, 0.1 miles), 20451 (Washington, 0.1 miles), 20435 (Washington, 0.1 miles) and 20240 (Washington, 0.1 miles).