US Gazetteer > Maryland Gazetteer > Maryland ZIP Codes > Great Mills, MD 20634

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Great Mills, MD 20634

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The 20634 ZIP Code is centered1 in Saint Marys County at latitude 38.258 and longitude -76.494 (Panoramio Photos). It is a standard type ZIP Code. Saint Marys County is in the Eastern Time Zone (UTC -5 hours) and observes daylight savings time.

The population in ZIP Code Tabulation Area (ZCTA) 20634 was 5,129 with 2,020 housing units; a land area land area of 8.64 sq. miles; a water area of 0.01 sq. miles; and a population density of 593.64 people per sq. mile for Census 2000. Demographic Profile

Great Mills, MD 20634 Map (Marker is ZIP Code Centroid)

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Nearby Cities, Towns & Census Designated Places

Patuxent Park, MD (1.4 miles ENE)
Great Mills, MD (1.4 miles S)
Callaway, MD (1.9 miles SW)
Lexington Park, MD (2.4 miles ENE)
Jonestown, MD (3.1 miles E)
Town Creek Manor, MD (3.1 miles N)
California, MD (3.1 miles NNW)
Woodland Acres, MD (3.4 miles NNW)
Hermanville, MD (3.6 miles ESE)
Chingville, MD (3.6 miles WSW)

Nearby Neighborhoods, Subdivisions & Other Small Populated Places

Lord Calvert Mobile Home Park, MD (< 0.1 mile)
Suburban Estates, MD (< 0.1 mile)
Hills Trailer Park, MD (< 0.1 mile)
Suburban Mobile Estates, MD (< 0.1 mile)
Friendly Pines, MD (< 0.1 mile)
 Greenview Knolls, MD (1.4 miles N)
Sherlock Mobile Home Estates, MD (1.4 miles E)
Spring Valley, MD (1.9 miles ENE)
National Mobile Home Park, MD (1.9 miles NNE)
Essex South, MD (1.9 miles E)

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.