Suffolk County, Massachusetts
Suffolk County: county in Massachusetts, United States
About
Suffolk County is a county located in the U.S. state of Massachusetts. As of the 2010 census, the population was 722,023 and a population density of 2,322 people per km². After 10 years in 2020 county had an estimated population of 801,582 inhabitants. Its county seat is Boston. The county was created 383 years ago in 1642.
County Snapshot
Suffolk County at a glance
Suffolk County currently has 5 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
5
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
BostonPopulation 691,531
Top linked places
Quick Facts about Suffolk County
| Population | 801,582 (2020) |
| Country | United States of America |
| State | Massachusetts (United States) |
| Different from | Suffolk, Suffolk County |
| Area | 311 km2 |
| Water as percent of area | 52% |
| Land as percent of area | 48% |
| Latitude & Longitude | 42.3555,-71.0658 |
| Named for | Suffolk |
| Capital | Boston |
| Establishment | January 01, 1643 |
| Time Zone | America/New_York |
| Local time | 01:29:57 (19th April 2026) |
| Density | 2,577 Pop. per km² as of 2020 |
| Population growth | 9.93% (2010-2020) |
| Weather | 58℉ Rain Showers Likely 7-days weather |
Geography
Suffolk County is located at 42°21'20"N 71°3'57"W (42.3555000, -71.0657500). It has 3 neighbors: Essex County, Middlesex County and Norfolk County.
Suffolk County map
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The largest city of Suffolk County is Boston with a population of 691,531. Other cities include, Revere population 52,375, Chelsea population 39,230, Jamaica Plain population 37,468 and Winthrop population 18,446. See all Suffolk County cities & populated places.
Suffolk County Populated Places
Cities, towns, neighborhoods & other populated places in Suffolk County.
| City Name | Population | Title |
|---|---|---|
| Boston | 691,531 | The twenty-first most populous city in the United States and the center of the Boston metropolitan area. |
| Revere | 52,375 | The most populous city in Suffolk County, Massachusetts. |
| Chelsea | 39,230 | City in Suffolk County, Massachusetts, United States |
| Jamaica Plain | 37,468 | Neighborhood in Boston, Massachusetts, United States |
| Winthrop | 18,446 | City in Massachusetts |
Weather
Rain showers likely. Cloudy, with a high near 58. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
7-Day Forecast- Boston
Demographics
The population of Suffolk County increased by 9.93% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 722,023 | - | census |
| 2011 | 737,141 | 2.05% | estimation process |
| 2012 | 751,103 | 1.86% | estimation process |
| 2013 | 762,488 | 1.49% | estimation process |
| 2014 | 773,630 | 1.44% | estimation process |
| 2015 | 782,591 | 1.15% | estimation process |
| 2016 | 792,576 | 1.26% | estimation process |
| 2017 | 800,806 | 1.03% | estimation process |
| 2018 | 803,147 | 0.29% | estimation process |
| 2019 | 803,907 | 0.09% | estimation process |
| 2020 | 801,582 | -0.29% | estimation process |
People born in Suffolk County (4)
People born in Suffolk County, including film producer Kenneth Macgowan, Massachusetts politician; United States senator James Lloyd, writer and psychiatrist Charles B. G. Murphy, .
More notable people
- Susanna Adams (daughter of U.S. president John Adams) she was born in 28/12/1768
Other places with the same name (1)
- Suffolk County, New York county in New York, United States with a population of 1,474,273 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 |
| 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 |
| Plymouth County | 523,738 | 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. |