US Gazetteer > Virginia Gazetteer > Virginia ZIP Codes > Dulles, VA 20103

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Preferred Name, USPS
Dulles, VA 20103
Not Acceptable, USPS
Stamp Distribution Network, VA 20103

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Weather forecast ZIP Code 20103

The 20103 ZIP Code is centered1 in Loudoun County at latitude 38.997 and longitude -77.451 (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 20103 Map (Marker is ZIP Code Centroid)

Local Search, 20103 ZIP Code| Distance & Driving Directions

Nearby Cities, Towns & Census Designated Places

Sterling, VA (1.4 miles ENE)
Ryan, VA (2.4 miles WNW)
Oak Grove, VA (2.7 miles ESE)
Sterling Park, VA (2.7 miles E)
Herndon Heights, VA (3.1 miles ESE)
Cooktown, VA (3.6 miles ESE)
Countryside, VA (3.6 miles NE)
Ashburn, VA (3.6 miles NNW)
Waxpool, VA (4.1 miles WNW)
Herndon, VA (4.1 miles ESE)

Nearby Neighborhoods, Subdivisions & Other Small Populated Places

Carters, VA (3.1 miles SW)
Ashburn Village, VA (3.4 miles NNW)
Ashburn Farm, VA (3.9 miles NW)
Broadlands, VA (3.9 miles WNW)
University Center, VA (4.1 miles N)
Royville, VA (4.5 miles WSW)
Potomac Farms, VA (4.7 miles N)
Graves, VA (4.9 miles NW)
Hutchinson, VA (5.3 miles SW)
Belmont Greene, VA (5.6 miles NW)

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.