Plymouth County, Massachusetts


Plymouth County is a county in the U.S. state of Massachusetts, south of Boston. As of the 2020 census, the population was 530,819. Its county seats are Plymouth and Brockton. In 1685, the county was created by the Plymouth General Court, the legislature of Plymouth Colony, predating its annexation by the Massachusetts Bay Colony.
Plymouth County is part of the
Boston–Cambridge–Newton, MA–NH Metropolitan Statistical Area.

Geography

According to the U.S. Census Bureau, the county has a total area of, of which is land and is water. It is the third-largest county in Massachusetts by total area.

Adjacent counties

The towns of Hingham and Hull in Plymouth County extend north of Norfolk County and face onto Massachusetts Bay, sharing a northern water boundary with Suffolk County.

National protected area

Demographics

2020 census

As of the 2020 census, the county had a population of 530,819. Of the residents, 21.0% were under the age of 18 and 19.4% were 65 years of age or older; the median age was 43.5 years. For every 100 females there were 94.1 males, and for every 100 females age 18 and over there were 91.2 males. 87.5% of residents lived in urban areas and 12.5% lived in rural areas.
The racial makeup of the county was 77.5% White, 8.5% Black or African American, 0.2% American Indian and Alaska Native, 1.5% Asian, 0.0% Native Hawaiian and Pacific Islander, 3.8% from some other race, and 8.5% from two or more races. [Hispanic and Race (United States Census)|Latino Americans|Hispanic or Latino] residents of any race comprised 4.5% of the population.
There were 197,288 households in the county, of which 30.9% had children under the age of 18 living with them and 26.9% had a female householder with no spouse or partner present. About 24.6% of all households were made up of individuals and 12.4% had someone living alone who was 65 years of age or older.
There were 214,770 housing units, of which 8.1% were vacant. Among occupied housing units, 75.4% were owner-occupied and 24.6% were renter-occupied. The homeowner vacancy rate was 0.9% and the rental vacancy rate was 5.2%.
Race / Ethnicity Pop 2000Pop 2010% 2000% 2010
White alone 414,110415,341406,91987.58%83.92%76.65%
Black or African American alone 20,44933,99143,4824.32%6.86%8.19%
Native American or Alaska Native alone 8891,0247960.18%0.20%0.14%
Asian alone 4,3065,9287,6930.91%1.19%1.44%
Pacific Islander alone 95118940.02%0.02%0.01%
Other race alone 10,62511,64711,9662.24%2.35%2.25%
Mixed race or Multiracial 10,81111,25135,9172.28%2.27%6.76%
Hispanic or Latino 11,53715,61923,9522.44%3.15%4.51%
Total472,822494,919530,819100.00%100.00%100.00%

2010 census

At the 2010 census, there were 494,919 people, 181,126 households, and 127,925 families in the county. The population density was. There were 200,161 housing units at an average density of. The racial makeup of the county was 85.5% white, 7.2% black or African American, 1.2% Asian, 0.2% American Indian, 3.2% from other races, and 2.6% from two or more races. Those of Hispanic or Latino origin made up 3.2% of the population. In terms of ancestry, 33.7% were Irish, 15.8% were Italian, 15.3% were English, 7.3% were German, and 3.7% were American.
Of the 181,126 households, 35.1% had children under the age of 18 living with them, 53.6% were married couples living together, 12.6% had a female householder with no husband present, 29.4% were non-families, and 23.8% of households were made up of individuals. The average household size was 2.67 and the average family size was 3.18. The median age was 41.1 years.
The median household income was $73,131 and the median family income was $86,251. Males had a median income of $60,303 versus $43,837 for females. The per capita income for the county was $33,333. About 5.0% of families and 7.0% of the population were below the poverty line, including 8.3% of those under age 18 and 7.0% of those age 65 or over.

2000 census

At the 2000 census there were 472,972 people, 168,361 households, and 122,398 families in the county. The population density was. There were 181,524 housing units at an average density of. The racial makeup of the county was 88.70% White, 4.56% Black or African American, 0.21% Native American, 0.92% Asian, 0.02% Pacific Islander, 3.06% from other races, and 2.52% from two or more races. 2.44%. were Hispanic or Latino of any race. 28.0% were of Irish, 12.8% Italian, 10.6% English and 5.1% American ancestry, 90.1% spoke English, 2.5% Spanish, 2.3% Portuguese, 1.5% French Creole and 1.0% French as their first language.
Of the 168,361 households 36.30% had children under the age of 18 living with them, 57.00% were married couples living together, 11.90% had a female householder with no husband present, and 27.30% were non-families. 22.20% of households were one person and 9.00% were one person aged 65 or older. The average household size was 2.74 and the average family size was 3.23.
The age distribution was 26.80% under the age of 18, 7.20% from 18 to 24, 30.40% from 25 to 44, 23.90% from 45 to 64, and 11.80% 65 or older. The median age was 37 years. For every 100 females, there were 95.00 males. For every 100 females age 18 and over, there were 91.30 males.
The median household income was $55,615 and the median family income was $65,554. Males had a median income of $45,535 versus $31,389 for females. The per capita income for the county was $24,789. About 4.90% of families and 6.60% of the population were below the poverty line, including 8.30% of those under age 18 and 7.90% of those age 65 or over.
The leading ancestry group in Plymouth County is Irish, with 31%. Plymouth County, along with Norfolk County, Massachusetts, claims the highest percentage of people with Irish ancestry in the United States.

Demographic breakdown by town

Income

The ranking of unincorporated communities that are included on the list are reflective if the census designated locations and villages were included as cities or towns. Data is from the 2007–2011 American Community Survey 5-Year Estimates.

Government and politics

Elected Officials

Plymouth County is governed by three County Commissioners:
Chairman Jared L. Valanzola
, Commissioner Sandra M. Wright,
and Commissioner Gregory M. Hanley
Other county elected officials include Sheriff Joseph D. McDonald Jr., District Attorney Timothy Cruz, Treasurer Thomas J. O'Brien, Register of Deeds John R. Buckley Jr., Register of Probate Matthew McDonough, and Clerk of Courts Robert Creedon

Presidential election results

From the late 19th to the mid 20th centuries, Plymouth County was a Republican Party stronghold in presidential elections. From 1876 to 1988, only three Democrats carried the county: Lyndon Johnson, Hubert Humphrey, and Jimmy Carter. Since 1992, however, it has become solidly Democratic, though less so relative to other counties in the state. In 2012, Mitt Romney lost the county by 4.2 points, the closest a Republican had come to winning a county in Massachusetts since 1988. However, it has become more Democratic afterwards, and in 2020, Joe Biden carried the county by 17 points, the largest margin of victory for a Democrat since 1996, only for Kamala Harris to carry it by only 9% four years later. At the state level, Plymouth County is more of a swing county and frequently splits its tickets in local and state elections.

County seal

The seal was adopted by the Plymouth County Commissioners on March 31, 1931, under the authority of the General Laws, Chapter 34, Section 14, and was designed by Frederic T. Bailey of North Scituate who was, at that time and for many years, chairman of the county commissioners.
Voter registration and party enrollment as of October 17, 2018Voter registration and party enrollment as of October 17, 2018Voter registration and party enrollment as of October 17, 2018Voter registration and party enrollment as of October 17, 2018Voter registration and party enrollment as of October 17, 2018Voter registration and party enrollment as of October 17, 2018
PartyPartyNumber of votersPercentage--
Democratic93,57125.91%--
Republican46,85612.97%--
Unenrolled215,24759.59%--
Minor Parties1,3220.37%--
TotalTotal361,186100%--

Media

For television, the city is served by the Boston and Providence media markets; no television stations are located within the county.
Radio stations located in Plymouth County include:
Call signFrequencyCity of licenseLicenseeFormat Notes
WATD-FM95.9 FMMarshfieldMarshfield Broadcasting Co., Inc.Adult contemporary
WBMS1460 AMBrocktonMarshfield Broadcasting Co., Inc.Adult contemporary
WBIM-FM91.5 FMBridgewaterBridgewater State UniversityCollege radio, alternative
WPLM1390 AMPlymouthPlymouth Rock Broadcasting Co., Inc.VariousCurrently silent since February 15, 2024
WPLM-FM99.1 FMPlymouthPlymouth Rock Broadcasting Co., Inc.Adult contemporary
WRPS88.3 FMRocklandRockland Public SchoolsHigh school radio
WSMA90.5 FMScituateCalvary Chapel of Twin Falls, Inc.Religious
WVBF1530 AMMiddleborough CenterSteven J. CallahanTalking Information Center
WWTA88.5 FMMarionTabor AcademyHigh school radioDefunct since April 1, 2014
WZRM97.7 FMBrocktoniHM Licenses, LLCSpanish CHR

The first radio broadcast in history was made in 1906, from the Brant Rock neighborhood in the town of Marshfield.
The Brockton Enterprise is the only daily newspaper published in the county, although the Quincy Patriot Ledger has extensive coverage of the South Shore of Massachusetts generally and Plymouth County in particular.
There are numerous weekly newspapers published in the county, including:Abington MarinerAbingtonDuxbury ClipperDuxburyThe Hingham JournalHinghamMarshfield Mariner - – MarshfieldOld Colony MemorialPlymouth
Many were operated by the Memorial Press Group, based in Plymouth, until the chain was sold to GateHouse Media in 2006. The flagship of the group was the Old Colony Memorial, the oldest continually published weekly newspaper in New England, first published in 1822.

Communities

Cities

Towns

Census-designated places

Other villages