Cobb Island, MD Profile: Facts & Data

The Cobb Island CDP⁽¹⁾ had a population of 933 as of July 1, 2024. Cobb Island ranks in the lower quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Maryland. See peer rankings below.

The primary coordinate point for Cobb Island is located at latitude 38.2585 and longitude -76.8439 in Charles County. The formal boundaries for the Cobb Island Census Designated Place 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 Cobb Island Census Designated Place 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.

A Census Designated Place (CDP) is a statistical counterpart to a self-governing (incorporated) place such as a city, town, or village. A CDP is not a legal entity and has no governmental functions.

Cobb Island, MD Data & Demographics (As of July 1, 2024)

POPULATION
Total Population	933 (100%)
Population in Households	933 (100.0%)
Population in Families	727 (77.9%)
Population in Group Quarters¹	0
Population Density	1,491
Diversity Index²	29


INCOME
Median Household Income	$104,309
Average Household Income	$126,974
% of Income for Mortgage⁴	26%
Per Capita Income	$54,709
Wealth Index⁵	143
Socioeconomic Status Index⁶	High (70.9)

HOUSING
Total HU (Housing Units)	587 (100%)
Owner Occupied HU	345 (58.8%)
Renter Occupied HU	57 ( 9.7%)
Vacant Housing Units	185 (31.5%)
Median Home Value	$434,106
Average Home Value	$433,913
Housing Affordability Index³	92

HOUSEHOLDS
Total Households	402
Average Household Size	2.32
Family Households	240
Average Family Size	3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
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 races 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.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Cobb Island, MD - Peer Comparisons by Rank and Percentile

The table below compares Cobb Island to the other 536 incorporated cities, towns and CDPs in Maryland by rank and percentile using July 1, 2024 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.

GROWTH RATE / YEAR	2020-2024	2024-2029
Population	0.10%	-0.59%
Households	-0.06%	-0.35%
Families		-0.59%
Median Household Income		2.45%
Per Capita Income		3.11%
Owner Occupied HU		-0.12%

Variable Description	Rank	Percentile
Total Population	# 333	38th
Population Density	# 254	53rd
Median Household Income	# 221	59th
Housing Affordability Index	# 311	58th
Per Capita Income	# 200	63rd
Diversity Index	# 411	24th

Cobb Island, MD Profile: Facts & Data

Cobb Island, Maryland - Basic Facts

Cobb Island, MD Data & Demographics (As of July 1, 2024)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Cobb Island, MD - Peer Comparisons by Rank and Percentile

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