What city is ZIP code 20540?

20540 is a Washington, District of Columbia ZIP code.

What county is 20540 in?

ZIP code 20540 is in District of Columbia, District of Columbia.

What time zone is ZIP code 20540 in?

20540 is in the Eastern Time zone (America/New_York).

What area code is 20540?

Phone numbers in ZIP code 20540 use area codes 202 and 771.

Can I use 20540 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 20540?

The nearest ZIP codes to 20540 are 20541 (Washington, 0 miles), 20557 (Washington, 0 miles), 20559 (Washington, 0 miles) and 20216 (Washington, 0.6 miles).

ZIP code 20540

Where is ZIP code 20540?

Washington, District of Columbia

District of Columbia · Unique ZIP code

ZIP code 20540 belongs to Washington, District of Columbia in District of Columbia. 20540 is a unique ZIP code assigned to a single organization (Library Of Congress) 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 20541 (Washington, 0 mi north), 20557 (Washington, 0 mi north) and 20559 (Washington, 0 mi north).

ZIP code	20540
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	38.8874, -77.0047 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 20540

ZIP code	City	Distance	Type
20541	Washington, DC	0 mi N	Unique
20557	Washington, DC	0 mi N	Unique
20559	Washington, DC	0 mi N	Unique
20216	Washington, DC	0.6 mi NW	Unique
20534	Washington, DC	0.6 mi NW	Unique
20013	Washington, DC	0.7 mi NW	PO Box only
20026	Washington, DC	0.7 mi NW	PO Box only
20029	Washington, DC	0.7 mi NW	PO Box only
20030	Washington, DC	0.7 mi NW	PO Box only
20033	Washington, DC	0.7 mi NW	PO Box only
20035	Washington, DC	0.7 mi NW	PO Box only
20038	Washington, DC	0.7 mi NW	PO Box only

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 20540 or measure the distance to another ZIP code.

How to address mail to 20540

JANE SMITH
123 MAIN ST
WASHINGTON DC 20540

Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (20540-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 20540?: 20540 is a Washington, District of Columbia ZIP code.
What county is 20540 in?: ZIP code 20540 is in District of Columbia, District of Columbia.
What time zone is ZIP code 20540 in?: 20540 is in the Eastern Time zone (America/New_York).
What area code is 20540?: Phone numbers in ZIP code 20540 use area codes 202 and 771.
Can I use 20540 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 20540?: The nearest ZIP codes to 20540 are 20541 (Washington, 0 miles), 20557 (Washington, 0 miles), 20559 (Washington, 0 miles) and 20216 (Washington, 0.6 miles).