Demographics of Norfolk County, Massachusetts

Norfolk County, Massachusetts had 739,749 people on July 1, 2025, by the Census Bureau’s estimate: +16,102 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Norfolk County, in four figures

739,749
Population: July 1, 2025, Vintage 2025 estimate.; +2.2%
Change since July 2020: +16,102 people.; 40.9 ±0.2
Median age: ACS 2020–⁠2024.; $130,739 ±$2,551
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Norfolk County, Massachusetts's population grew 2.2% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Norfolk County, Massachusetts's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Norfolk County, Massachusetts's population grew 2.2% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Norfolk County, Massachusetts's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	723,647	100.0	100.0
2021	724,970	100.2	100.2
2022	727,727	100.6	100.7
2023	730,453	100.9	101.6
2024	737,601	101.9	102.5
2025	739,749	102.2	103.1

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Population of Norfolk County, Massachusetts on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	723,647	−2,374	−609	+115	−1,696
2021	724,970	+1,323	+888	+1,633	−1,743
2022	727,727	+2,757	+931	+6,546	−4,582
2023	730,453	+2,726	+816	+6,283	−4,380
2024	737,601	+7,148	+751	+5,781	+672
2025	739,749	+2,148	+896	+3,673	−2,465

Age, 2020–2024

The median age is 40.9 ±0.2: for men 39.9 ±0.3 and for women 42.0 ±0.2. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Norfolk County by age, ACS 2020–2024
Age	People	Share	Massachusetts	United States
Under 5	37,356 ±42	5.1% ±<0.1	5.0% ±<0.1	5.6% ±<0.1
5 to 17	111,957 ±1,664	15.3% ±0.2	14.4% ±0.1	16.3% ±<0.1
18 to 24	62,666 ±1,379	8.6% ±0.2	9.8% ±0.1	9.1% ±<0.1
25 to 44	192,332 ±1,847	26.3% ±0.3	27.1% ±0.1	26.9% ±<0.1
45 to 64	196,126 ±1,897	26.9% ±0.3	25.9% ±0.1	24.8% ±<0.1
65 and over	129,645 ±2,287	17.8% ±0.3	17.9% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $130,739 ±$2,551, and income per person $71,758 ±$887, in 2024 dollars. The median is $103,960 ±$527 in Massachusetts and $80,734 ±$166 in the United States.

Households by income

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Households in Norfolk County by income, ACS 2020–2024
Household income	Households	Share	Massachusetts	United States
Under $25,000	27,830 ±1,338	9.8% ±0.5	13.2% ±0.2	14.6% ±<0.1
$25,000 to $49,999	27,796 ±1,433	9.8% ±0.5	12.5% ±0.2	16.7% ±<0.1
$50,000 to $74,999	27,297 ±1,433	9.6% ±0.5	12.0% ±0.2	15.5% ±<0.1
$75,000 to $99,999	27,173 ±1,575	9.6% ±0.6	10.7% ±0.2	12.6% ±<0.1
$100,000 to $149,999	48,299 ±1,899	17.0% ±0.7	17.5% ±0.2	17.5% ±<0.1
$150,000 to $199,999	35,324 ±1,756	12.5% ±0.6	11.9% ±0.1	9.6% ±<0.1
$200,000 or more	89,649 ±1,759	31.6% ±0.6	22.3% ±0.2	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Norfolk County by age, ACS 2020–2024
Age	Below poverty	Rate	Massachusetts	United States
All ages	47,744 ±2,592	6.7% ±0.4	10.0% ±0.1	12.5% ±0.1
Under 18	8,072 ±825	5.4% ±0.6	11.7% ±0.3	16.1% ±0.1
18 to 59	24,869 ±1,796	6.4% ±0.5	9.3% ±0.2	11.6% ±0.1
60 and over	14,803 ±1,091	8.5% ±0.6	10.4% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Norfolk County, ACS 2020–2024
Measure	Norfolk County	Massachusetts	United States
Housing units	295,227 ±233	3,030,406 ±453	143,775,355 ±10,234
Occupied	96.0% ±0.3	91.9% ±0.2	89.9% ±0.1
Vacant	4.0% ±0.3	8.1% ±0.2	10.1% ±0.1
Owner occupied	68.7% ±0.7	62.5% ±0.3	65.2% ±0.3
Renter occupied	31.3% ±0.8	37.5% ±0.2	34.8% ±0.1
Median home value	$683,900 ±$5,690	$562,100 ±$2,169	$332,700 ±$236
Median gross rent	$2,149 ±$29	$1,762 ±$9	$1,413 ±$2
Median year built	1964 ±1	1964 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Norfolk County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Massachusetts	United States
Hispanic or Latino	42,383 ±0	5.8% ±<0.1	13.3% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	501,825 ±1,884	68.7% ±0.3	66.6% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	51,987 ±1,238	7.1% ±0.2	6.4% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	90,340 ±1,306	12.4% ±0.2	7.3% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	412 ±108	0.1% ±<0.1	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	57 to 207	< 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	8,098 ±1,420	1.1% ±0.2	1.2% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	34,905 ±2,014	4.8% ±0.3	5.1% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Norfolk County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Massachusetts	United States
Born in the state	429,958 ±3,614	58.9% ±0.5	58.7% ±0.2	57.3% ±<0.1
Born in another state	148,314 ±3,045	20.3% ±0.4	20.3% ±0.2	26.9% ±<0.1
Born a citizen outside the states	10,668 ±896	1.5% ±0.1	2.9% ±0.1	1.7% ±<0.1
Born abroad	141,142 ±2,978	19.3% ±0.4	18.0% ±0.1	14.1% ±<0.1
Naturalized citizens	83,527 ±2,623	11.4% ±0.4	9.7% ±0.1	7.4% ±<0.1
Not citizens	57,615 ±2,484	7.9% ±0.3	8.3% ±0.1	6.8% ±<0.1

Norfolk County among the counties of Massachusetts

5th of 14 by population, July 2025. Every one is listed on the Massachusetts page.

Counties of Massachusetts near Norfolk County in population, July 2025
County	July 2025	Change since 2020
Middlesex County	1,669,979	+2.8%
Worcester County	888,502	+3.7%
Essex County	826,653	+2.3%
Suffolk County	791,891	+0.1%
Norfolk County	739,749	+2.2%
Bristol County	593,640	+2.9%
Plymouth County	546,829	+3.5%
Hampden County	464,338	+0.1%
Barnstable County	233,539	+2.4%
Hampshire County	164,065	+10.4%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026