US Gazetteer > Virginia Gazetteer > Virginia ZIP Codes > Dulles, VA 20104

City/Town Names Most Popular Resources Current Weather & 7-Day Forecast 
Preferred Name, USPS
Dulles, VA 20104
Not Acceptable, USPS
Inspection Service Forensic, VA 20104

Dulles VA MLS real estate listings Search the MLS in Dulles, VA

Property & neighborhood reports Property & Neighborhood Reports

Apartments in/near Dulles VA Apartments | Job Search

background checks Instant Background Checks
Weather forecast ZIP Code 20104

The 20104 ZIP Code is centered1 in Loudoun County at latitude 39.326 and longitude -77.535 (Panoramio Photos). It is a unique - single entity - type ZIP Code. Loudoun County is in the Eastern Time Zone (UTC -5 hours) and observes daylight savings time.

Dulles, VA 20104 Map (Marker is ZIP Code Centroid)

Local Search, 20104 ZIP Code| Distance & Driving Directions

Nearby Cities, Towns & Census Designated Places

Mountville, MD (1.4 miles NE)
Lander, MD (1.9 miles SW)
Bells Mill, MD (2.4 miles WNW)
Jefferson, MD (2.4 miles N)
Olive, MD (2.7 miles W)
Doubs, MD (3.1 miles ESE)
Church Hill, MD (3.4 miles ENE)
Adamstown, MD (3.4 miles ESE)
Lewis Mill, MD (3.4 miles NNW)
Slabtown, MD (3.6 miles WNW)

Nearby Neighborhoods, Subdivisions & Other Small Populated Places

Middlebrook, MD (< 0.1 mile)
Adamstown Village, MD (1.4 miles ESE)
Sunrise, MD (1.4 miles SW)
Potomac Overlook, MD (1.4 miles SSW)
Merry Midnight, MD (1.4 miles WSW)
Wilber Woods, MD (1.4 miles SE)
Mar-Lu-Ridge Vista, MD (1.9 miles NE)
Jefferson Heights, MD (1.9 miles NNE)
Roundtree, MD (1.9 miles NNW)
Springview, MD (1.9 miles NNW)

ZIP Codes - Key Concepts

  1. ZIP Codes are categories for grouping mailing addresses and are not exact geographic regions.
  2. The centroid of a ZIP Code may be in one County and the associated city/town in another.
  3. In rural areas, a single ZIP Code may be used for cities and towns in several different Counties / Independent Cities.
  4. ZIP Code "areas" can overlap, be subsets of each other, or be artificial constructs with no geographic area.
  5. ZIP Codes are only loosely tied to cities.

1 Keeping the above key concepts in mind, what we informally refer to as the "center" of a ZIP Code is most often actually the centroid of a polygon.