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The 20104 ZIP Code is centered1 in Loudoun County at latitude 39.326 and longitude -77.535. 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
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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) Pleasant View, MD (3.6 miles SE) |
Nearby Neighborhoods, Subdivisions & Other Small Populated Places
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Middlebrook, MD
(< 0.1 mile) Merry Midnight, MD (1.4 miles WSW) Sunrise, MD (1.4 miles SW) Adamstown Village, MD (1.4 miles ESE) Potomac Overlook, MD (1.4 miles SSW) |
Wilber Woods, MD
(1.4 miles SE) Mar-Lu-Ridge Vista, MD (1.9 miles NE) Springview, MD (1.9 miles NNW) Roundtree, MD (1.9 miles NNW) Jefferson Heights, MD (1.9 miles NNE) |
ZIP Codes - Key Concepts
- ZIP Codes are categories for grouping mailing addresses and are not exact geographic regions.
- The centroid of a ZIP Code may be in one County and the associated city/town in another.
- In rural areas, a single ZIP Code may be used for cities and towns in several different Counties / Independent Cities.
- ZIP Code "areas" can overlap, be subsets of each other, or be artificial constructs with no geographic area.
- 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.
