Marion Station, MD 21838 ZIP Code Profile

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Marion, MD

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ZIP Code 21838: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Marion Station, MD 21838

Acceptable Alternative
Marion, MD 21838
Marion Sta, MD 21838

  • ZIP Code Type: STANDARD
  • County: Somerset County
  • Centroid: Latitude 38.025, Longitude -75.729
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 26
  • PO Box Addresses: 120
  • Residential Addresses: 653
    • Multi-Family Addresses: 0
    • Single Family Addresses: 653

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.


21838 ZIP Code Map

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Marion Station, MD 21838 Data & Demographics (As of July 1, 2017)


Total Population 1,830
Daytime Population: Workers 178
Daytime Population: Residents 817
Total Daytime Population (TDP) 995
Ratio TDP/Total Population1 0.54
Population in Households 1,826
Population in Familes 1,539
Population in Group Qrtrs 4
Population Density2 34
Diversity Index3 51


Median Household Income $57,666
Average Household Income $66,959
Per Capita Income $25,841


Total Housing Units 932 (100%)
Owner Occupied HU 585 (62.8%)
Renter Occupied HU 119 (12.8%)
Vacant Housing Units 228 (24.5%)
Median Home Value $172,454
Average Home Value $249,744


Total Households 704
Average Household Size 2.59
Family Households 517
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 0.22% -0.05%
Households 0.26% -0.03%
Families 0.13% -0.08%
Median Household Income   1.66%
Per Capita Income   2.77%

Marion Station, MD 21838 - Peer Comparisons by Rank and Percentile

The table below compares 21838 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 # 319 30th
Population Density # 429 6th
Diversity Index # 140 70th
Median Household Income # 341 25th
Per Capita Income # 381 17th

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

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