What city is ZIP code 20104?

20104 is a Dulles, Virginia ZIP code.

What county is 20104 in?

ZIP code 20104 is in Loudoun County, Virginia.

What time zone is ZIP code 20104 in?

20104 is in the Eastern Time zone (America/New_York).

What area code is 20104?

Phone numbers in ZIP code 20104 use area code 571.

Can I use 20104 for a street address?

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

What ZIP codes are near 20104?

The nearest ZIP codes to 20104 are 20102 (Dulles, 0 miles), 20146 (Ashburn, 0 miles), 20160 (Lincoln, 2.5 miles) and 20159 (Hamilton, 3.5 miles).

ZIP code 20104

Where is ZIP code 20104?

Dulles, Virginia

Loudoun County · Unique ZIP code

ZIP code 20104 belongs to Dulles, Virginia in Loudoun County. 20104 is a unique ZIP code assigned to a single organization (Inspection Service Forensic) that gets a lot of mail. It is in the Eastern Time zone and uses area code 571. The closest ZIP codes are 20102 (Dulles, 0 mi north), 20146 (Ashburn, 0 mi north) and 20160 (Lincoln, 2.5 mi west).

ZIP code	20104
Type	Unique ZIP code for a single organization
Status	Active
City	Dulles
State	Virginia (VA)
County	Loudoun County
Time zone	Eastern Time · now
Area code	571
Coordinates	39.0853, -77.6452 map
3-digit prefix	201

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 20104

ZIP code	City	Distance	Type
20102	Dulles, VA	0 mi N	Unique
20146	Ashburn, VA	0 mi N	PO Box only
20160	Lincoln, VA	2.5 mi W	PO Box only
20159	Hamilton, VA	3.5 mi N	PO Box only
20175	Leesburg, VA	3.7 mi SE	Standard
20158	Hamilton, VA	3.7 mi N	Standard
20177	Leesburg, VA	4.9 mi NE	PO Box only
20178	Leesburg, VA	4.9 mi NE	PO Box only
20129	Paeonian Springs, VA	5.5 mi N	Standard
20134	Purcellville, VA	5.6 mi NW	PO Box only
20131	Philomont, VA	5.6 mi W	PO Box only
20132	Purcellville, VA	6.2 mi NW	Standard

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 20104 or measure the distance to another ZIP code.

How to address mail to 20104

JANE SMITH
123 MAIN ST
DULLES VA 20104

Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (20104-XXXX) helps mail sort faster but isn’t required.

Other ZIP codes in Dulles, VA

All Dulles ZIP codes with population and income →

Questions

What city is ZIP code 20104?: 20104 is a Dulles, Virginia ZIP code.
What county is 20104 in?: ZIP code 20104 is in Loudoun County, Virginia.
What time zone is ZIP code 20104 in?: 20104 is in the Eastern Time zone (America/New_York).
What area code is 20104?: Phone numbers in ZIP code 20104 use area code 571.
Can I use 20104 for a street address?: Only for mail to the organization it is assigned to. Other addresses in Dulles use a standard ZIP code.
What ZIP codes are near 20104?: The nearest ZIP codes to 20104 are 20102 (Dulles, 0 miles), 20146 (Ashburn, 0 miles), 20160 (Lincoln, 2.5 miles) and 20159 (Hamilton, 3.5 miles).