What city is ZIP code 20440?

20440 is a Washington, District of Columbia ZIP code.

What county is 20440 in?

ZIP code 20440 is in District of Columbia, District of Columbia.

What time zone is ZIP code 20440 in?

20440 is in the Eastern Time zone (America/New_York).

What area code is 20440?

Phone numbers in ZIP code 20440 use area code 202.

Can I use 20440 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 20440?

The nearest ZIP codes to 20440 are 20036 (Washington, 0.4 miles), 20063 (Washington, 0.6 miles), 20203 (Washington, 0.6 miles) and 20009 (Washington, 0.6 miles).

ZIP code 20440

Where is ZIP code 20440?

Washington, District of Columbia

District of Columbia · Unique ZIP code

ZIP code 20440 belongs to Washington, District of Columbia in District of Columbia. 20440 is a unique ZIP code assigned to a single organization (International Joint Comm) that gets a lot of mail. It is in the Eastern Time zone and uses area code 202. The closest ZIP codes are 20036 (Washington, 0.4 mi southeast), 20063 (Washington, 0.6 mi south) and 20203 (Washington, 0.6 mi south).

ZIP code	20440
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	38.9139, -77.0453 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 20440

ZIP code	City	Distance	Type
20036	Washington, DC	0.4 mi SE	Standard
20063	Washington, DC	0.6 mi S	Unique
20203	Washington, DC	0.6 mi S	Unique
20009	Washington, DC	0.6 mi NE	Standard
20235	Washington, DC	0.6 mi W	Unique
20579	Washington, DC	0.7 mi S	Unique
20437	Washington, DC	0.8 mi S	Unique
20526	Washington, DC	0.8 mi S	Unique
20586	Washington, DC	0.8 mi S	Unique
20427	Washington, DC	0.8 mi S	Unique
20441	Washington, DC	0.8 mi NE	Unique
20037	Washington, DC	0.9 mi S	Standard

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 20440 or measure the distance to another ZIP code.

How to address mail to 20440

JANE SMITH
123 MAIN ST
WASHINGTON DC 20440

Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (20440-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 20440?: 20440 is a Washington, District of Columbia ZIP code.
What county is 20440 in?: ZIP code 20440 is in District of Columbia, District of Columbia.
What time zone is ZIP code 20440 in?: 20440 is in the Eastern Time zone (America/New_York).
What area code is 20440?: Phone numbers in ZIP code 20440 use area code 202.
Can I use 20440 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 20440?: The nearest ZIP codes to 20440 are 20036 (Washington, 0.4 miles), 20063 (Washington, 0.6 miles), 20203 (Washington, 0.6 miles) and 20009 (Washington, 0.6 miles).