Gibson Island, MD 21056 ZIP Code Profile

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Gibson Island, MD

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ZIP Code 21056: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Gibson Island, MD 21056

  • ZIP Code Type: PO BOX
  • Businesses Addresses: 2
  • Single Family Addresses: 1
  • Multi-Family Addresses: 0
  • County: Anne Arundel County
  • Centroid: Latitude 39.077, Longitude -76.431
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

Neighborhood Data

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Gibson Island, MD 21056 Data & Demographics (As of July 1, 2017)


Total Population 289
Daytime Population: Workers 81
Daytime Population: Residents 130
Total Daytime Population (TDP) 211
Ratio TDP/Total Population1 0.73
Population in Households 289
Population in Familes 247
Population in Group Qrtrs 0
Population Density2 197
Diversity Index3 11


Median Household Income $172,413
Average Household Income $232,452
Per Capita Income $102,150


Total Housing Units 246 (100%)
Owner Occupied HU 113 (45.9%)
Renter Occupied HU 14 ( 5.7%)
Vacant Housing Units 119 (48.4%)
Median Home Value $756,250
Average Home Value $796,903


Total Households 127
Average Household Size 2.28
Family Households 92
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 1.1% 1.15%
Households 1.02% 1.08%
Families 0.93% 1.06%
Median Household Income   0.5%
Per Capita Income   1.31%

Gibson Island, MD 21056 - Peer Comparisons by Rank and Percentile

The table below compares 21056 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 # 413 10th
Population Density # 297 35th
Diversity Index # 422 8th
Median Household Income # 13 97th
Per Capita Income # 3 100th

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

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