US Gazetteer > Maryland Gazetteer > Maryland ZIP Codes > Ellicott City, MD 21042

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Preferred Name, USPS
Ellicott City, MD 21042
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Ellicott, MD 21042

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Weather forecast ZIP Code 21042

The 21042 ZIP Code is centered1 in Howard County at latitude 39.277 and longitude -76.867 (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) 21042 was 35,522 with 12,178 housing units; a land area land area of 38.66 sq. miles; a water area of 0.08 sq. miles; and a population density of 918.93 people per sq. mile for Census 2000. Demographic Profile

Ellicott City, MD 21042 Map (Marker is ZIP Code Centroid)

Local Search, 21042 ZIP Code| Distance & Driving Directions

Nearby Cities, Towns & Census Designated Places

Pine Orchard, MD (< 0.1 mile)
Saint Johns Village, MD (1.9 miles ESE)
Saint Johns Manor, MD (2.4 miles ESE)
Mayfield, MD (3.1 miles WNW)
Elioak, MD (3.1 miles SSW)
Columbia, MD (3.1 miles SSE)
Rockland, MD (3.4 miles ENE)
Woodstock, MD (3.6 miles N)
Ellicott City, MD (3.6 miles E)
Daniels, MD (3.9 miles NE)

Nearby Neighborhoods, Subdivisions & Other Small Populated Places

Somerset, MD (< 0.1 mile)
Font Hill Village, MD (< 0.1 mile)
Chateau Ridge, MD (< 0.1 mile)
Burleigh Manor, MD (< 0.1 mile)
Centennial Manor, MD (< 0.1 mile)
 Turf Valley Overlook, MD (< 0.1 mile)
The Fairways, MD (< 0.1 mile)
Oak Lea, MD (< 0.1 mile)
Font Hill Manor, MD (< 0.1 mile)
Fairway Hill, MD (< 0.1 mile)

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.