South Dennis, MA Profile: Facts, Map & Data


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South Dennis, Massachusetts - Basic Facts

The South Dennis Census Designated Place had a population of 3,752 as of July 1, 2016.

The primary coordinate point for South Dennis is located at latitude 41.7041 and longitude -70.1507 in Barnstable County. The formal boundaries for the South Dennis Census Designated Place (see map below) encompass a land area of 4.55 sq. miles and a water area of 0.2 sq. miles. Barnstable County is in the Eastern time zone (GMT -5). The elevation is 33 feet.

The South Dennis Census Designated Place (GNIS ID: 2378230) 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 South Dennis Census Designated Place is located within Town of Dennis, a minor civil division (MCD) of Barnstable County.

Beneath the boundary map are tables with South Dennis 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

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South Dennis Census Designated Place, MA Boundary Map

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Boundary Maps: Town of Dennis | Barnstable County | Massachusetts Counties

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South Dennis, MA Data & Demographics (As of July 1, 2016)


Total Population 3,752
Population in Households 3,640
Population in Familes 2,814
Population in Group Qrtrs 112
Population Density1 825
Diversity Index2 21


Total Households 1,668
Average Household Size 2.18
Family Households 1,033
Average Family Size 3


Total Housing Units 2,821 (100%)
Owner Occupied HU 1,285 (45.6%)
Renter Occupied HU 383 (13.6%)
Vacant Housing Units 1,153 (40.9%)
Median Home Value $312,611
Average Home Value $369,786


Median Household Income $51,983
Average Household Income $64,069
Per Capita Income $28,840
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.47% 0.47%
Households 0.41% 0.45%
Families 0.44% 0.4%
Median Household Income   -0.85%
Per Capita Income   1.27%
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.

South Dennis, MA - Peer Comparisons by Rank and Percentile

The table below compares South Dennis to the other 246 incorporated cities, towns and CDPs in Massachusetts 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 # 142 43rd
Population Density1 # 184 26th
Diversity Index2 # 126 48th
Median Household Income # 195 21st
Per Capita Income # 193 22nd

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

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