US Gazetteer > Maryland Gazetteer > Maryland ZIP Codes > Columbia, MD 21046

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Columbia, MD 21046

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The 21046 ZIP Code is centered1 in Howard County at latitude 39.172 and longitude -76.853 (Panoramio Photos). It is a standard type ZIP Code. Howard County is in the Eastern Time Zone (UTC -5 hours) and observes daylight savings time.

The population in ZIP Code Tabulation Area (ZCTA) 21046 was 15,074 with 6,066 housing units; a land area land area of 7.78 sq. miles; a water area of 0 sq. miles; and a population density of 1,938.67 people per sq. mile for Census 2000. Demographic Profile

Columbia, MD 21046 Map (Marker is ZIP Code Centroid)

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Nearby Cities, Towns & Census Designated Places

Guilford, MD (1.4 miles E)
Simpsonville, MD (1.9 miles NW)
North Laurel, MD (2.4 miles SSW)
Savage, MD (2.7 miles SE)
Scaggsville, MD (3.1 miles SW)
Oakland Mills, MD (3.4 miles N)
Pfeiffer Corners, MD (3.6 miles ENE)
Waterloo, MD (3.6 miles E)
High Ridge, MD (3.6 miles S)
Fulton, MD (4.1 miles WSW)

Nearby Neighborhoods, Subdivisions & Other Small Populated Places

Woodvalley, MD (< 0.1 mile)
The Pines, MD (< 0.1 mile)
Stonebrook, MD (< 0.1 mile)
MacGills Common, MD (< 0.1 mile)
Dickinson, MD (< 0.1 mile)
 Carriage Hills, MD (< 0.1 mile)
Chase Eden, MD (< 0.1 mile)
Donleigh, MD (1.4 miles NW)
Dasher Green, MD (1.4 miles N)
Kings Meade, MD (1.4 miles W)

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.