Norfolk County, Massachusetts Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 5th-largest in Massachusetts
The population of Norfolk County, Massachusetts is 724,540 as of the 2023 American Community Survey, making it the 5th-largest county in Massachusetts. The median household income is $126,497, the median home value is $649,400, and the median age is 40.9.
The population of Norfolk County has grown 10.1% since 2010 (673,059 → 740,754), a +0.69% annualized rate.
724,540
Population
+0.69%
Annual growth
1829
People / sq mi
$126,497
Median Income
$649,400
Median Home Value
Norfolk County covers 396 sq mi of land at 1829.2 people per square mile.
About Norfolk County, MA
What sets Norfolk County apart is money: median household income runs $126,497, above the US median of $78,538. Norfolk County is a county in Massachusetts with a population of 724,540. It is the #5-largest of all counties in Massachusetts nationally.
Households here are among the highest-earning of all US counties: median income is $126,497, above the US median of $78,538. Hardship is rare relative to US counties: a poverty rate of just 4.2%, below the national 12.4%. Real estate commands a premium here — a median home value of $649,400, with typical rent around $2,072.
The population is unusually well-credentialed for US counties — 57.6% of adults have a four-year degree, above the national 35.0%. An unusually large 20.6% of workers are remote, above the national 14.0%, and the average commute runs about 33 minutes each way.
Taken together, the income and housing figures place Norfolk County firmly in the higher-cost, higher-earning tier of US counties — a profile that tends to track dense job markets and competitive housing.
Norfolk County Population History (2010-2024)
The county of Norfolk County had a population of 673,059 in 2010 and 740,754 in 2024, a 10.1% growth over 14 years. The peak was 740,754 in 2024. Average annual growth rate: 0.69%.
740,754
Population (2024)
673,059
Population (2010)
740,754
Peak (2024)
0.69%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 673,059 |
| 2011 | 677,823 |
| 2012 | 682,984 |
| 2013 | 688,518 |
| 2014 | 692,439 |
| 2015 | 694,774 |
| 2016 | 697,452 |
| 2017 | 701,046 |
| 2018 | 703,628 |
| 2019 | 707,164 |
| 2020 | 723,750 |
| 2021 | 724,906 |
| 2022 | 728,619 |
| 2023 | 732,379 |
| 2024 | 740,754 |
Race & Ethnicity
| White | 71.4% |
| Black or African American | 7.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Age & Sex
40.9
Median Age
51.5%
Female
48.5%
Male
17.3%
Age 65+
Age Distribution
Children (under 15): 16.8% · Seniors (65+): 17.3%
Income & Poverty
| Median household income | $126,497+$25,156 vs state |
| Mean household income | $177,133 |
| Per-capita income | $69,508 |
| Poverty rate | 4.2%-2.4% vs state |
| Unemployment rate | 3.4% |
| Employment-to-population | 65.8% |
Top Industries by Employment
The largest employment sector in Norfolk County is professional & business services, accounting for 29.3% of workers.
How residents commute
9.5%
Drive alone
3.2%
Carpool
59.0%
Public transit
20.6%
Work from home
32.9 min
Avg commute
Housing
$649,400+$123,600 vs state
Median home value
$2,072
Median rent
68.5%
Homeownership rate
293,420
Total housing units
95.9%
Occupied
4.1%
Vacant
31.5%
Renter-occupied
Social & access
98.1%
With health insurance
96.5%
With broadband internet
20.4%
Foreign-born
4.0%
Veterans (18+)
9.7%
With a disability
77.0%
Speak language other than English at home
Education
94.4%
High School+
57.6%
Bachelor's+
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County rankings
Common questions about Norfolk County, MA
Frequently Asked Questions
Norfolk County, Massachusetts has a population of 724,540 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 5th-largest county in Massachusetts. Population density is 1829 people per square mile.
The population of Norfolk County has grown 10.1% since 2010 (673,059 → 740,754), a +0.69% annualized rate.
The median household income in Norfolk County, Massachusetts is $126,497, with mean (average) household income of $177,133 and per-capita income of $69,508. 4.2% of residents live below the federal poverty level.
In Norfolk County, the largest racial and ethnic groups are White (71.4%), Black or African American (7.2%), Hispanic or Latino (0.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Norfolk County, Massachusetts is 40.9 years. Residents are 51.5% female and 48.5% male.
The median home value in Norfolk County is $649,400 and median monthly rent is $2,072. 68.5% of occupied housing units are owner-occupied. The county has 293,420 total housing units, 4.1% of which are vacant.
The largest employment sector in Norfolk County, Massachusetts is professional, scientific, and management services, employing 29.3% of workers. The unemployment rate is 3.4%.
Boston is among the largest cities associated with Norfolk County, Massachusetts, with a population of 663,972.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.