Suffolk County, Massachusetts Population and Demographics

In this article, we'll explore the population statistics for Suffolk County, Massachusetts, including popular demographics data like median age, number of households, household income, gender, employment and unemployment rates, occupations, religion, and more.

We are using the latest American Community Survey (ACS) 5-Year survey data from the US Census Bureau, which is accurate up to 2021.

Table of Contents

Population

There is a lot of data that lets us see how many people live in Suffolk County, Massachusetts. The most basic data is the total population, which is the total number of people living in Suffolk County, Massachusetts. The estimated population of Suffolk County, Massachusetts is 792,647 people, with a median age of 33.3.

We can look at the total population in Suffolk County over the last 5 years to see how much it has changed.

Year Population Change 5-Year Change
2021
792,647
-1.06% +1.53%
2020
801,162
+0.57%
-
2019
796,605
+0.61%
-
2018
791,766
+1.42%
-
2017
780,685
- -

Population of Suffolk County, Massachusetts by Race and Ethnicity

We can also look at how the population has changed over the last 5 years by each of the race/ethnicity types as defined by the US Census Bureau.

Race 2021 2017 Change
White
44.1%
45.5%
-3.08%
Black/African American
19.1%
20.2%
-5.45%
Native
0.2%
0.2%
0.00%
Hispanic
23.3%
22.3%
+4.48%
Asian
8.7%
8.6%
+1.16%
Hawaiian/Pacific Islander
0%
0%
0.00%
Two Or More Races
3.6%
2.3%
+56.52%
Other
0.9%
0.9%
0.00%

This data can be very important for a number of reasons, including social and economic research, planning and development, and marketing to a multi-cultural population.

Note that the Native group includes both Native American and Alaskan Native people.

Population of Suffolk County, Massachusetts by Age and Gender

The age and gender of a population is another interesting demographic statistic because it lets us track trends in the population over time. For example, we can see how the population has changed over the last 5 years by median age as a total, and also by male and female.

Year Total Male Female
2021 33.3 +0.91% 32.9 +0.92% 33.6 +0.6%
2020 33 +0.61% 32.6 +0.93% 33.4 +0.3%
2019 32.8 +0.31% 32.3 +0.62% 33.3 +0.3%
2018 32.7 +0.31% 32.1 +0.31% 33.2 0%
2017 32.6 - 32 - 33.2 -

The median age of Suffolk County, Massachusetts gives you an idea of the age distribution, with half of the population being older than the median age and half being younger.

This can then be used to infer and compare against birth rates, parent ages, and more metrics to understand the population. For example, an increasing median age indicates an aging population, which can be a sign of a declining population in terms of birth rates and workforce participation.

Age 2021 2017
(Years) Male Female Male Female
0 to 9 39,038 -3.36% 38,653 -7.1% 37,742 35,958
10 to 19 43,322 +1.27% 44,906 +5.58% 43,870 47,467
20 to 29 88,231 -6.1% 91,726 -3.04% 82,907 88,922
30 to 39 65,120 +10.34% 66,313 +6.91% 72,095 70,997
40 to 49 45,494 -2.98% 45,114 +0.63% 44,148 45,394
50 to 59 42,055 +1.17% 45,176 -1.04% 42,545 44,686
60 to 69 30,019 +12.52% 35,228 +7.35% 33,955 37,871
70+ 24,293 +7.24% 35,997 +5.59% 26,065 38,025

Median Household Income

The latest median household income of Suffolk County, Massachusetts is $80,260.00.

In simple terms, the median income is the middle income of a group of people. Half of the people in the group make more than the median income, and half make less. The median income is a good indicator of the overall income of a group of people, and can be used to compare against other metrics such as the average income, per capita income, and more.

Median Income by Age

We can also look at the median income by age to see how the median income varies by age, and how it compares to the overall median income for Suffolk County.

  • Under 25
    $37,768.00
  • 25 to 44
    $102,072.00
  • 45 to 64
    $83,960.00
  • 65 and over
    $40,473.00

Average Household Income

Whenever we ask what is the average household income in Suffolk County, we are actually talking about the mean household income.

This is calculated by adding up all the incomes of all the households in Suffolk County, and then dividing that number by the total number of households. This is a good way to get a general idea of the average income of a group of people, but it can be skewed by a very high or very low incomes.

The average household income of Suffolk County, Massachusetts is currently $116,843.00.

In terms of accurately summarizing income at a geographic level, the median income is a better metric than the average income because it isn't affected by a small number of very high or very low incomes.

If you had an area where the average income was greater than the median, it can mean that there is significant income inequality, with income being concentrated in a small number of wealthy households.

15.32% of households in Suffolk County are classed as high income households (making $200,000+ per year).

Household Income Tiers

The US Census Bureau divides households into income tiers based on the median income for the area. This is a good way to compare the income of Suffolk County against other areas.

  • Less than $24,999
    21.86%
  • $25,000 to $49,999
    13.64%
  • $50,000 to $74,999
    12.21%
  • $75,000 to $99,999
    10.83%
  • $100,000 to $149,999
    16.44%
  • $150,000 to $199,999
    9.69%
  • $200,000 or more
    15.32%

Per Capita Income

The per capita income in Suffolk County is $47,916.00.

Per capita income is the average income of a person in a given area. It is calculated by dividing the total income of Suffolk County by the total population of Suffolk County.

This is different from the average or mean income because it includes and accounts for all people in Suffolk County, Massachusetts, including people like children, the elderly, unemployed people, retired people, and more.

Education Levels

We can also look at the education levels in Suffolk County to see how many people have a high school degree, a bachelor's degree, or a graduate degree.

Educational attainment is a good indicator of the overall education level of a population, and can be used to compare against other metrics such as the average income, per capita income, and more to see how education levels affect income, unemployment rates, and more.

  • Master's degree or higher
    22.35%
  • Bachelor's degree
    41.05%
  • Some college or associate's degree
    5.46%
  • High school diploma or equivalent
    28.30%
  • Less than high school diploma
    2.84%

Employment

Employment rates are all based around the total population in Suffolk County that are over the age of 16.

The total population of Suffolk County over the age of 16 is 675,011.

Of those people, a total of 69.70% are working or actively looking for work. This is called the labor force participation rate.

The participation rate is a useful market measure because it shows the relative amount of labor resources available to the economy.

The employment to total population rate in Suffolk County is 64.70%.

Employment by Age

We can look at the employment rates by age to see how it compares to the overall employment rate.

Age Population Participation Unemployment Rate
16 to 19 years 47,401 39.70% 20.80%
20 to 24 years 74,724 67.40% 10.70%
25 to 29 years 97,105 86.60% 5.80%
30 to 34 years 84,229 89.80% 4.20%
35 to 44 years 105,197 87.20% 6.00%
45 to 54 years 87,157 82.50% 7.30%
55 to 59 years 43,282 74.50% 5.20%
60 to 64 years 40,420 62.30% 5.30%
65 to 74 years 56,394 31.30% 7.60%
75 years and over 39,102 6.70% 3.00%

Employment by Race

Another very interesting employment statistic we can look at is the employment and unemployment rates by race in Suffolk County. The table below shows the rates for each of the ethnicity groups types defined by the US Census Bureau.

Age Population Participation Unemployment Rate
White 365,166 72.00% 5.00%
Black or African American 132,925 67.60% 9.30%
American Indian and Alaska Native 1,868 53.30% 9.10%
Asian 63,380 59.60% 6.20%
Native Hawaiian and Other Pacific Islander 434 56.70% 0.00%
Other 45,515 67.60% 11.20%
Two or more races 65,723 72.30% 10.90%
Hispanic or Latino 141,805 70.50% 9.60%
Not Hispanic or Latino 318,480 72.10% 4.80%

Occupations

In this section we can look at the most common occupations in Suffolk County as well as the gender breakdown and earnings of them.

The total population of civilian employees that are 16 years old or older in Suffolk County is 436,945, with median earnings of $51,420.00.

Women in Suffolk County, Massachusetts earning approximately 85.40% of the men's earnings.

Population Earnings
Total 436,945 $51,420.00
Male 217,168 $54,821.00
Female 219,777 $46,801.00

Occupations by Category

In the table below, we can break down the population and earnings even further by occupation. The list of occupation categories below will show you how many people are employed in each category and the median earnings of each profession.

Occupation Employed Earnings
Management 51,280 $92,140.00
Business and Financial 37,050 $81,851.00
Computer and Mathematical 20,662 $90,065.00
Architecture and Engineering 7,922 $77,391.00
Life, Physical, and Social Science 13,668 $60,788.00
Community and Social Service 9,310 $47,905.00
Legal 9,187 $109,617.00
Educational and Library 30,612 $48,402.00
Arts, Design, Entertainment, Sports, and Media 12,032 $53,667.00
Healthcare Practitioners 28,534 $75,624.00
Healthcare Support 15,706 $29,524.00
Firefighters and Protective Service 6,014 $33,220.00
Law Enforcement 2,826 $91,568.00
Food Preparation and Serving 27,092 $22,946.00
Building and Grounds Cleaning 19,409 $28,253.00
Personal Care and Service 13,047 $20,798.00
Sales 36,359 $40,148.00
Office and Administrative Support 44,350 $41,428.00
Farming, Fishing, and Forestry 433 $43,281.00
Construction and Extraction 13,010 $44,538.00
Installation, Maintenance, and Repair 6,039 $45,570.00
Production 9,713 $38,125.00
Transportation and Material Moving 13,800 $38,713.00

Occupations by Gender

The table below shows the same occupations from the list above, but we have split them by male and female to see how many male and females work in each occupation, the median earnings, and the male to female ratio of earnings.

That last metric is important because it can be used to look at the gender pay gap between men and women.

Occupation Male Female
Population Earnings Population Earnings
Management 25,874 $100,746.00 25,406 $84,351.00
Business and Financial 17,060 $88,208.00 19,990 $75,962.00
Computer and Mathematical 14,584 $95,992.00 6,078 $81,218.00
Architecture and Engineering 6,061 $80,370.00 1,861 $71,151.00
Life, Physical, and Social Science 7,206 $58,051.00 6,462 $62,720.00
Community and Social Service 2,942 $43,592.00 6,368 $49,790.00
Legal 4,664 $126,171.00 4,523 $95,213.00
Educational and Library 10,907 $54,583.00 19,705 $45,997.00
Arts, Design, Entertainment, Sports, and Media 5,072 $55,847.00 6,960 $52,075.00
Healthcare Practitioners 7,985 $78,825.00 20,549 $74,746.00
Healthcare Support 2,166 $32,576.00 13,540 $28,901.00
Firefighters and Protective Service 4,512 $38,960.00 1,502 $23,598.00
Law Enforcement 2,218 $92,813.00 608 $70,848.00
Food Preparation and Serving 14,773 $25,949.00 12,319 $18,263.00
Building and Grounds Cleaning 10,483 $34,766.00 8,926 $22,339.00
Personal Care and Service 3,910 $22,149.00 9,137 $20,239.00
Sales 19,764 $55,139.00 16,595 $25,008.00
Office and Administrative Support 14,454 $41,380.00 29,896 $41,450.00
Farming, Fishing, and Forestry 278 $62,772.00 155 $30,163.00
Construction and Extraction 12,649 $44,385.00 361 $60,369.00
Installation, Maintenance, and Repair 5,807 $44,974.00 232 $51,250.00
Production 5,976 $45,355.00 3,737 $27,379.00
Transportation and Material Moving 11,417 $40,121.00 2,383 $27,788.00

Households and Family Size

A household defined bu the US Census Bureau is a group of people who occupy a housing unit. A housing unit is a house, apartment, mobile home, group of rooms, or single room occupied as separate living quarters.

There are currently 315,192 households in Suffolk County, with an average household size of 2.36 people.

A family is defined as a group of two or more people related by birth, marriage, or adoption who live together in the same household.

There are 153,628 families in Suffolk County with an average family size of 3.16 people.

Households by Marital Status

The four categories of household by marital status are:

  • Married-couple family
  • Male householder with no spouse present
  • Female household with no spouse present
  • Nonfamily household

The table below shows the total number of households and families, with the average sizes of each.

Married Male Female Nonfamily
Total Households 94,076 14,155 45,397 161,564
Average Household Size 3.24 3.3 3.4 1.48
Total Families 94,076 14,155 45,397 0
Average Household Size 3.18 2.9 3.19 0

Poverty

Of the 153,628 families in Suffolk County, 12.50% are considered to be below the poverty threshold.

The table below shows the latest poverty thresholds in Suffolk County:

Household Size Poverty Threshold
1 Person $14,580.00
2 People $19,720.00
3 People $24,860.00
4 People $30,000.00
5 People $35,140.00
6 People $40,280.00
7 People $45,420.00
8 People $50,560.00

Housing

There are 346,557 housing units in Suffolk County, Massachusetts.

The table below shows the split between occupied and vacant units:

Total Percentage
Occupied 315,192 90.95%
Vacant 31,365 9.05%

56.89% of the total 346,557 housing units in Suffolk County are rental units. This is approximately 197,139 properties.

For owner-occupied housing units, a total of 114,012 are occupied by the owner - or 32.90% of the total.

Rental Rates

The median rent for a property in Suffolk County is $1,761.00.

In the chart below, we can look at the number of rental properties in Suffolk County that fall into a particular rent range. These can then be used to compare with other areas, or to see how they have changed over time.

  • No rent paid
    4,041
  • Less than $500
    27,153
  • $500 to $999
    20,996
  • $1,000 to $1,499
    27,966
  • $1,500 to $1,999
    43,036
  • $2,000 to $2,499
    35,371
  • $2,500 to $2,999
    18,533
  • $3,000 or more
    24,084

Property Value

The median value of a property in Suffolk County is $576,300.00.

Just like with rental rates, we can look at the number of properties in Suffolk County that fall into a particular value range.

  • Less than $50,000
    2,446
  • $50,000 to $99,999
    749
  • $100,000 to $149,999
    453
  • $150,000 to $199,999
    987
  • $200,000 to $299,999
    7,501
  • $300,000 to $499,999
    33,419
  • $500,000 to $999,999
    52,492
  • $1,000,000 or more
    15,965

Property Age

We can also look at the age of properties in Suffolk County. The chart below shows the number of properties in Suffolk County that fall into a particular age range.

  • 1939 or earlier
    164,237
  • 1940 to 1949
    18,621
  • 1950 to 1959
    26,570
  • 1960 to 1969
    26,312
  • 1970 to 1979
    26,337
  • 1980 to 1989
    20,698
  • 1990 to 1999
    15,679
  • 2000 to 2009
    22,909
  • 2010 to 2013
    24,589
  • 2014 or later
    605

Vehicles per Household

The number of vehicles available per household can be a good indicator of the level of affluence in an area. The chart below shows the number of households in Suffolk County that have a particular number of vehicles available.

  • No vehicles available
    100,217
  • 1 vehicle available
    134,249
  • 2 vehicles available
    61,402
  • 3 or more vehicles available
    19,324

Commuting to Work

In this section, we can also look at how people in Suffolk County get to work. The chart below shows the number of people in Suffolk County that commute to work in a particular way.

31.1 minutes is the average travel time to work for people in Suffolk County.

These commute times can be compared to other date like income and educational levels to see how they relate to each other and if there are any trends in the data that might suggest a correlation.

  • Less than 5 minutes
    6,934
  • 5 to 9 minutes
    18,932
  • 10 to 14 minutes
    30,225
  • 15 to 19 minutes
    45,150
  • 20 to 24 minutes
    48,709
  • 25 to 29 minutes
    24,156
  • 30 to 34 minutes
    73,523
  • 35 to 39 minutes
    15,422
  • 40 to 44 minutes
    22,814
  • 45 to 59 minutes
    46,364
  • 60 to 89 minutes
    37,118
  • 90 or more minutes
    8,647

Summary

We've covered a LOT of demographic and population data for Suffolk County, Massachusetts in this article! Hopefully you have found it very useful in your research of the area.

If you use any of the data found on this page, please consider linking back to USPopulation.org as the source and if you have any feedback or data requests, click here to contact us.

Places in Suffolk County, Massachusetts

We have data for 1 places in Suffolk County, Massachusetts. Click on a place below to see more information about the demographics of that place.