US Gazetteer > Maryland Gazetteer > Maryland ZIP Codes > Gunpowder, MD 21010

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Preferred Name, USPS
Gunpowder, MD 21010
Acceptable Alternative
Aber Prov Grd, MD 21010
Aberdeen Proving Ground, MD 21010
Not Acceptable, USPS
Edgewood Arsenal, MD 21010

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Weather forecast ZIP Code 21010

The 21010 ZIP Code is centered1 in Harford County at latitude 39.405 and longitude -76.288 (Panoramio Photos). It is a standard type ZIP Code. Harford County is in the Eastern Time Zone (UTC -5 hours) and observes daylight savings time.

The population in ZIP Code Tabulation Area (ZCTA) 21010 was 864 with 255 housing units; a land area land area of 15.94 sq. miles; a water area of 0.16 sq. miles; and a population density of 54.22 people per sq. mile for Census 2000. Demographic Profile

Gunpowder, MD 21010 Map (Marker is ZIP Code Centroid)

Local Search, 21010 ZIP Code| Distance & Driving Directions

Nearby Cities, Towns & Census Designated Places

Edgewood, MD (1.4 miles NNW)
Edgewood Heights, MD (1.4 miles NNW)
Magnolia, MD (1.9 miles W)
Edgewood Meadows, MD (1.9 miles NNW)
McComas, MD (2.4 miles NNW)
Old Baltimore, MD (2.4 miles E)
Van Bibber, MD (2.7 miles NNW)
Van Bibber Manor, MD (3.1 miles NNW)
Crestwood Acres, MD (3.1 miles NE)
Clearview, MD (3.1 miles N)

Nearby Neighborhoods, Subdivisions & Other Small Populated Places

Willoughby Court, MD (1.4 miles N)
Trimble Fields, MD (1.4 miles NW)
Scholar Woods, MD (1.4 miles N)
Martin Manor, MD (1.4 miles NNW)
Harford Commons, MD (1.4 miles NW)
Perry's Mobile Home Park, MD (1.4 miles NNE)
Ashby Place, MD (1.9 miles NW)
Harbour Oaks, MD (1.9 miles NNE)
Harford Manor, MD (1.9 miles NNE)
Harford Square, MD (1.9 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.