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Ilchester is located in Howard County in the state of Maryland (MD).

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Ilchester, Maryland, in Howard County Ilchester has a population of 23,476 citizens who are all invited to join us here on our site.
Latest Ilchester, MD News:

More News Resources for Ilchester
County Level News: Howard County News
State Level News: State of Maryland News
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Ilchester, MD Map (Interactive)

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Ilchester Latitude: 39.2601 Longitude: -76.7979

The Zip Code for Ilchester, MD is: 21043

We also provide additional resources for the rest of Howard County and the State of Maryland.


Facts & Data:

Ilchester Maryland Physical Characteristics:

Ilchester has an area of 10.8 square miles
  • Land: 10.745820849421 Sq. Mi. (99.43%)
  • Water: 0.061969111969112 Sq. Mi.(0.57%)
The Ilchester CDP takes up 4.3% of the area of Howard County.

Map Location Coordinates:

  • Latitude: +39.2161852
  • Longitude: -076.7619467
Ilchester Land Water Pie Chart

Ilchester, MD Climate Information:

  • Average Temperature: 55.3°F
  • Average Rainfall: 45.55 inches
  • Average Snowfall: 21.9 inches
*Based on annual average for Weather Station USC00189750 WOODSTOCK
Latitude: 39.3333 Longitude: -76.8667 Elevation: 140.2 feet.

Ilchester, MD Population Data:

According to the 2010 U.S. Census, the population of Ilchester was 23,476 people, which is 8.2 % of the entire population of Howard County.


  • 49.15% Male
  • 50.85% Female


  • 68.061% White
  • 11.552% Black
  • 15.224% Asian
  • 0.24% American Indian/Alaskan Native
  • 0.03% Pacific Islander
  • 3.561% Mixed
  • 1.338% Other


  • 95.42% Not Hispanic or Latino
  • 4.58% Hispanic or Latino
Ilchester Race Population Ring Chart

Ilchester, MD Housing Information:

Average Household Size: 2.8
Number of Residences: 8,809
  • Occupied: 8,467 (96.12%)
  • Vacant: 342 (3.88%)

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