Charlestown, MD 21914 ZIP Code Profile

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Charlestown, MD

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ZIP Code 21914: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Charlestown, MD 21914

  • ZIP Code Type: PO BOX
  • County: Cecil County
  • Centroid: Latitude 39.574, Longitude -75.981
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 16
  • PO Box Addresses: 366
  • Residential Addresses: 1
    • Multi-Family Addresses: 0
    • Single Family Addresses: 1

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


21914 ZIP Code Map

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Charlestown, MD 21914 Data & Demographics (As of July 1, 2017)


Total Population 789
Daytime Population: Workers 197
Daytime Population: Residents 449
Total Daytime Population (TDP) 646
Ratio TDP/Total Population1 0.82
Population in Households 788
Population in Familes 641
Population in Group Qrtrs 1
Population Density2 1,416
Diversity Index3 18


Median Household Income $67,767
Average Household Income $78,087
Per Capita Income $32,321


Total Housing Units 399 (100%)
Owner Occupied HU 246 (61.7%)
Renter Occupied HU 80 (20.1%)
Vacant Housing Units 73 (18.3%)
Median Home Value $271,930
Average Home Value $341,667


Total Households 326
Average Household Size 2.42
Family Households 221
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.04% 3.74%
Households -0.17% 3.7%
Families -0.31% 3.62%
Median Household Income   2.94%
Per Capita Income   2.76%

Charlestown, MD 21914 - Peer Comparisons by Rank and Percentile

The table below compares 21914 to the other 456 ZIP Codes in Maryland by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 368 20th
Population Density # 137 70th
Diversity Index # 379 17th
Median Household Income # 272 41st
Per Capita Income # 282 38th

Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.

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