Gunpowder, MD 21010 ZIP Code Profile


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ZIP Code 21010: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Gunpowder, MD 21010

Acceptable Alternative
Aber Prov Grd, MD 21010
Aberdeen Proving Ground, MD 21010

Not Acceptable, USPS
Edgewood Arsenal, MD 21010

  • ZIP Code Type: STANDARD
  • County: Harford County
  • Centroid: Latitude 39.405, Longitude -76.288
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 19
  • PO Box Addresses: 32
  • Residential Addresses: 105
    • Multi-Family Addresses: 63
    • Single Family Addresses: 42

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.


21010 ZIP Code Map

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Gunpowder, MD 21010 Data & Demographics (As of July 1, 2017)


Total Population 111
Daytime Population: Workers 163
Daytime Population: Residents 46
Total Daytime Population (TDP) 209
Ratio TDP/Total Population1 1.88
Population in Households 111
Population in Familes 104
Population in Group Qrtrs 0
Population Density2 7
Diversity Index3 57


Median Household Income $50,000
Average Household Income $58,478
Per Capita Income $18,966


Total Housing Units 114 (100%)
Owner Occupied HU 0
Renter Occupied HU 36 (31.6%)
Vacant Housing Units 78 (68.4%)
Median Home Value $0
Average Home Value $0


Total Households 36
Average Household Size 3.08
Family Households 29
Average Family Size 4
  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 0.9% 0.53%
Households 0.79% 0.55%
Families 0.49% 0.68%
Median Household Income   0.29%
Per Capita Income   1.05%

Gunpowder, MD 21010 - Peer Comparisons by Rank and Percentile

The table below compares 21010 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 # 435 5th
Population Density # 450 2nd
Diversity Index # 115 75th
Median Household Income # 399 13th
Per Capita Income # 444 3rd

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

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