Ellerslie, MD 21529 ZIP Code Profile

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Ellerslie, MD

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ZIP Code 21529: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Ellerslie, MD 21529

  • ZIP Code Type: PO BOX
  • County: Allegany County
  • Centroid: Latitude 39.719, Longitude -78.778
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 20
  • PO Box Addresses: 348
  • 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.


21529 ZIP Code Map

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Ellerslie, MD 21529 Data & Demographics (As of July 1, 2017)


Total Population 555
Daytime Population: Workers 122
Daytime Population: Residents 293
Total Daytime Population (TDP) 415
Ratio TDP/Total Population1 0.75
Population in Households 555
Population in Familes 468
Population in Group Qrtrs 0
Population Density2 239
Diversity Index3 8


Median Household Income $48,749
Average Household Income $60,002
Per Capita Income $25,406


Total Housing Units 261 (100%)
Owner Occupied HU 194 (74.3%)
Renter Occupied HU 41 (15.7%)
Vacant Housing Units 26 ( 10.0%)
Median Home Value $139,344
Average Home Value $160,825


Total Households 235
Average Household Size 2.36
Family Households 169
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 0.48% -0.04%
Households 0.54% 0.0%
Families 0.42% -0.12%
Median Household Income   1.05%
Per Capita Income   3.1%

Ellerslie, MD 21529 - Peer Comparisons by Rank and Percentile

The table below compares 21529 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 # 386 16th
Population Density # 282 38th
Diversity Index # 436 5th
Median Household Income # 403 12th
Per Capita Income # 386 16th

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

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