Plymouth County, Massachusetts
Plymouth County: county in Massachusetts, United States
About
Plymouth County is a county located in the U.S. state of Massachusetts. As of the 2010 census, the population was 494,919 and a population density of 175 people per km². After 10 years in 2020 county had an estimated population of 523,738 inhabitants. Its county seat is Plymouth. The county was created 341 years ago in 1684.
County Snapshot
Plymouth County at a glance
Plymouth County currently has 37 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
37
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Massachusetts counties
14
Open related pagesLargest city
BrocktonPopulation 95,770
Top linked places
Quick Facts about Plymouth County
| Population | 523,738 (2020) |
| Country | United States of America |
| State | Massachusetts (United States) |
| Different from | Plymouth County |
| Area | 2832 km2 |
| Water as percent of area | 40% |
| Land as percent of area | 60% |
| Latitude & Longitude | 41.9874,-70.7371 |
| Named for | Plymouth |
| Altitude | 108 feet / 33 meters |
| Capital | Plymouth |
| Establishment | January 01, 1685 |
| Time Zone | America/New_York |
| Local time | 01:30:42 (19th April 2026) |
| Density | 185 Pop. per km² as of 2020 |
| Population growth | 5.5% (2010-2020) |
| Weather | 53℉ Rain Showers Likely 7-days weather |
Geography
Plymouth County is located at 41°59'15"N 70°44'13"W (41.9874300, -70.7370700). It has 4 neighbors: Barnstable County, Bristol County, Dukes County and Norfolk County.
Plymouth County map
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The largest city of Plymouth County is Brockton with a population of 95,770. Other cities include, Plymouth population 62,654, Bridgewater population 27,689, Marshfield population 26,037 and Middleborough population 25,722. See all Plymouth County cities & populated places.
Plymouth County Populated Places (more)
Cities, towns, neighborhoods & other populated places in Plymouth County.
| City Name | Population | Title |
|---|---|---|
| Brockton | 95,770 | The second most populous city in Plymouth County, Massachusetts. |
| Plymouth | 62,654 | County seat town in Plymouth County, Massachusetts, United States |
| Bridgewater | 27,689 | Town in Plymouth County, Massachusetts, United States |
| Marshfield | 26,037 | Village and civil parish in Gloucestershire, UK |
| Middleborough | 25,722 | Town in Plymouth County, Massachusetts, United States |
| Hingham | 24,720 | Town in Massachusetts, United States |
| Wareham | 22,778 | Town in Massachusetts |
| Scituate | 19,047 | Seacoast town in Plymouth County, Massachusetts |
| Pembroke | 18,553 | Town in Plymouth County, Massachusetts, USA |
| Rockland | 17,992 | City in Knox County, Maine, United States |
| Abington | 16,752 | Town in Plymouth County, Massachusetts, United States |
| Duxbury | 15,932 | Town in Massachusetts |
| Whitman | 15,295 | Town in Plymouth County, Massachusetts, United States |
| Hanover | 14,624 | Town in Massachusetts, United States |
| East Bridgewater | 14,554 | City in Plymouth County, Massachusetts, United States of America |
| Kingston | 12,208 | Coastal town in Plymouth County, Massachusetts, United States |
Weather
Rain showers likely. Cloudy, with a high near 53. Southwest wind 12 to 21 mph. Chance of precipitation is 70%.
7-Day ForecastOfficial website of Plymouth County
Official Website- Brockton
Demographics
The population of Plymouth County increased by 5.5% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 494,919 | - | census |
| 2011 | 498,184 | 0.66% | estimation process |
| 2012 | 499,495 | 0.26% | estimation process |
| 2013 | 502,792 | 0.66% | estimation process |
| 2014 | 506,513 | 0.73% | estimation process |
| 2015 | 509,221 | 0.53% | estimation process |
| 2016 | 512,207 | 0.58% | estimation process |
| 2017 | 515,461 | 0.63% | estimation process |
| 2018 | 518,422 | 0.57% | estimation process |
| 2019 | 521,202 | 0.53% | estimation process |
| 2020 | 523,738 | 0.48% | estimation process |
People born in Plymouth County (2)
People born in Plymouth County, including baseball player Brian Richard Warren, Episcopal priest Ethan Allen, .
More notable people
Other places with the same name (1)
- Plymouth County, Iowa county in Iowa, United States of America with a population of 25,219 people.
Massachusetts Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Middlesex County | 1,609,379 | County in Massachusetts, United States |
| Worcester County | 829,212 | County in Massachusetts, United States |
| Suffolk County | 801,582 | County in Massachusetts, United States |
| Essex County | 791,263 | County in Massachusetts, United States |
| Norfolk County | 709,409 | County in Massachusetts, United States |
| Boston | 691,531 | The twenty-first most populous city in the United States and the center of the Boston metropolitan area. |
| South Boston | 571,281 | This historic Boston neighborhood, often called "Southie, " is situated south of downtown Boston and the Fort Point Channel, with Dorchester Bay to its east and south. |
| Bristol County | 566,765 | County in Massachusetts, United States |
| Hampden County | 463,986 | County in Massachusetts, United States |
| Barnstable County | 213,164 | County in Massachusetts, United States |
| Worcester | 184,570 | The second most populous city in Massachusetts. |
| Hampshire County | 161,401 | County in Massachusetts, United States |
| Springfield | 152,646 | The fourth most populous city in Massachusetts. |
| Berkshire County | 124,571 | County in Massachusetts, United States |
| Cambridge | 119,192 | The most populous city in Middlesex County, Massachusetts. |
| Lowell | 110,904 | The third most populous city in Massachusetts. |