Chelsea, MA Profile: Facts, Map & Data

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Chelsea, Massachusetts - Basic Facts

The City of Chelsea had a population of 37,187 as of July 1, 2015. Chelsea ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Massachusetts. See peer rankings below.

The primary coordinate point for Chelsea is located at latitude 42.3968 and longitude -71.0313 in Suffolk County. The formal boundaries for the City of Chelsea (see map below) encompass a land area of 2.21 sq. miles and a water area of 0.25 sq. miles. Suffolk County is in the Eastern time zone (GMT -5). The elevation is 39 feet.

The City of Chelsea has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Beneath the boundary map are tables with Chelsea population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2015.

Alternate Unofficial Names for Chelsea: Romney Marsh, Rumney Marsh, Winisemit, Winne-ashim-ut, Winnet Semet, Winnisemit, Winnisimmet, Winnissimmet.

City of Chelsea, MA Boundary Map

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Boundary Maps: Suffolk County | Massachusetts Counties

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Chelsea, MA Data & Demographics (As of July 1, 2015)

POPULATION

Total Population 37,187
Population in Households 36,480
Population in Familes 27,353
Population in Group Qrtrs 707
Population Density1 16,810
Diversity Index2 88
 

HOUSEHOLDS

Total Households 12,497
Average Household Size 2.92
Family Households 7,741
Average Family Size 4

HOUSING

Total Housing Units 13,357 (100%)
Owner Occupied HU 3,618 (27.1%)
Renter Occupied HU 8,879 (66.5%)
Vacant Housing Units 860 ( 6.4%)
Median Home Value $306,989
Average Home Value $337,576
 

INCOME

Median Household Income $41,766
Average Household Income $53,754
Per Capita Income $18,115
  (Compound Annual Growth Rates)

GROWTH RATES

2010-2015 2015-2020
Population 1.06% 1.36%
Households 1.05% 1.34%
Families 0.93% 1.27%
Median Household Income   2.37%
Per Capita Income   2.14%
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.

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Chelsea, MA - Peer Comparisons by Rank and Percentile

The table below compares Chelsea to the other 244 incorporated cities, towns and CDPs in Massachusetts by rank and percentile using July 1, 2015 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 # 39 84th
Population Density1 # 3 99th
Diversity Index2 # 2 100th
Median Household Income # 226 8th
Per Capita Income # 236 4th

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