How many people live in Norfolk County, MA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 740,800 people living in Norfolk County, MA. That makes Norfolk County the fifth-most populous county in Massachusetts. It is home to 10.4% of people living in the state.
741K
population of Norfolk County, MA (2024)
10.4%
County share of the Massachusetts population (2024)
About 740,800 people lived in Norfolk County, MA in 2024.
Population estimates, 2000–2024
What are Norfolk County, MA’s age demographics?
About 137,300 Norfolk County residents are aged 65 and older in 2024. That represents 18.5% of its population. For comparison, the age group represents 18.7% of Massachusetts’ population and 18% in the US overall.
Another 148,300 Norfolk County residents, or 20% of the population, were children under 18. For comparison, the age group represents 19% of Massachusetts’s population and 21.6% in the US overall.
A higher share of Norfolk County, MA's population is aged 45–64 than the US as a whole.
Population estimates by age group, (2024)
What are Norfolk County, MA’s racial and ethnic demographics?
Non-Hispanic white residents make up 69% of the Norfolk County, MA population, higher than the national share of 57.5%. Norfolk County, MA also has a larger share of people identifying as non-Hispanic Asian (14%) than the US overall (6.5%).
In contrast, Norfolk County’s Hispanic population accounts for 6.3%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 8.4% of the county, compared with 12.6% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Norfolk County, MA has a higher share of a non-Hispanic Asian population than Massachusetts as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Norfolk County, MA is Quincy with about 103,400 residents in 2024.
Cities and towns in Norfolk County, MA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Quincy | 103,434 |
| 2. | Brookline | 63,925 |
| 3. | Weymouth Town | 60,159 |
| 4. | Braintree Town | 39,134 |
| 5. | Randolph Town | 35,114 |
| 6. | Franklin Town | 33,742 |
| 7. | Needham | 32,931 |
| 8. | Norwood | 31,764 |
| 9. | Wellesley | 31,242 |
| 10. | Stoughton | 29,457 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
