Cobb Island, MD Profile: Facts, Map & Data


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Cobb Island, Maryland - Basic Facts

The Cobb Island Census Designated Place had a population of 1,226 as of July 1, 2016.

The primary coordinate point for Cobb Island is located at latitude 38.268 and longitude -76.8609 in Charles County. The formal boundaries for the Cobb Island Census Designated Place (see map below) encompass a land area of 0.62 sq. miles and a water area of 0.3 sq. miles. Charles County is in the Eastern time zone (GMT -5). The elevation is 0 feet.

The Cobb Island Census Designated Place (GNIS ID: 2583600) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The Cobb Island Census Designated Place is located within District 5, Thompkinsville, a minor civil division (MCD) of Charles County.

Beneath the boundary map are tables with Cobb Island population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

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.


Cobb Island Census Designated Place, MD Boundary Map

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Boundary Maps: District 5, Thompkinsville | Charles County | Maryland Counties / Independent Cities

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Cobb Island, MD Data & Demographics (As of July 1, 2016)


Total Population 1,226
Population in Households 1,226
Population in Familes 969
Population in Group Qrtrs 0
Population Density1 1,982
Diversity Index2 23


Total Households 523
Average Household Size 2.34
Family Households 334
Average Family Size 3


Total Housing Units 711 (100%)
Owner Occupied HU 425 (59.8%)
Renter Occupied HU 98 (13.8%)
Vacant Housing Units 188 (26.4%)
Median Home Value $250,714
Average Home Value $354,647


Median Household Income $63,835
Average Household Income $88,606
Per Capita Income $37,241
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.81% 0.99%
Households 0.79% 1.05%
Families 0.94% 0.88%
Median Household Income   2.33%
Per Capita Income   2.26%
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.

Cobb Island, MD - Peer Comparisons by Rank and Percentile

The table below compares Cobb Island to the other 518 incorporated cities, towns and CDPs 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 # 303 42nd
Population Density1 # 190 64th
Diversity Index2 # 365 30th
Median Household Income # 281 46th
Per Capita Income # 181 65th

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

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