Oakland, MD 21550 ZIP Code Profile


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ZIP Code 21550: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Oakland, MD 21550

Acceptable Alternative
Crellin, MD 21550
Deer Park, MD 21550
Hutton, MD 21550
Loch Lyn Hght, MD 21550
Loch Lynn Heights, MD 21550
Mnt Lake Park, MD 21550
Mountain Lake Park, MD 21550
Mt Lake Park, MD 21550
Mtn Lk Park, MD 21550

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 678
  • Single Family Addresses: 6,037
  • Multi-Family Addresses: 264
  • County: Garrett County
  • Centroid: Latitude 39.338, Longitude -79.402
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

Neighborhood 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 certain data.


21550 ZIP Code Map

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Oakland, MD 21550 Data & Demographics (As of July 1, 2016)


Total Population 14,354
Population in Households 14,068
Population in Familes 11,573
Population in Group Qrtrs 286
Population Density1 67
Diversity Index2 6


Total Households 5,777
Average Household Size 2.44
Family Households 3,931
Average Family Size 3


Total Housing Units 8,483 (100%)
Owner Occupied HU 4,231 (49.9%)
Renter Occupied HU 1,546 (18.2%)
Vacant Housing Units 2,706 (31.9%)
Median Home Value $173,923
Average Home Value $212,083


Median Household Income $40,110
Average Household Income $53,869
Per Capita Income $22,260
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.05% 0.07%
Households -0.01% 0.05%
Families -0.15% -0.04%
Median Household Income   -0.16%
Per Capita Income   1.21%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Oakland, MD 21550 - Peer Comparisons by Rank and Percentile

The table below compares 21550 to the other 455 ZIP Codes in Maryland by rank and percentile using July 1, 2016 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 # 150 67th
Population Density1 # 387 15th
Diversity Index2 # 440 4th
Median Household Income # 425 7th
Per Capita Income # 411 10th

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