Northfield, NH demographics:
population, income, and more

Total population
6,317
-0.3% year-over-year change
Median household income
$82,425/yr
4.0% year-over-year change
Housing units
2,824
1.1% year-over-year change

Northfield population

How many people live in Northfield

Northfield is home to 6,317 residents, according to the most recent Census data. Gender-wise, 48.4% of Northfield locals are male, and 51.6% are female.

Total population
6,317
-0.3% year-over-year change
Gender ratio
Male
48.4%
3,054
Female
51.6%
3,263
Value Percent YoY change
Male 3,054 48.4% -2.0%
Female 3,263 51.6% 1.2%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Northfield is 46, with the population distributed as follows: about 14.8% are children under 15, then 8.4% are in the 15 to 24 age group. Adults between 25 and 44 make up 25.6% of the population, while another 30% fall into the 45 to 64 bracket. Finally, around 21.1% are 65 or older.

Median age
45.8
Age breakdown
Under 15
14.8%
15 to 24
8.4%
25 to 44
25.6%
45 to 64
30%
Over 65
21.1%
Value Percent YoY change
Under 15 938 14.8% -8.2%
15 to 24 533 8.4% -7.0%
25 to 44 1,615 25.6% 0.6%
45 to 64 1,898 30% -1.7%
Over 65 1,335 21.1% 10.3%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Northfield, 95% of the population are US-born citizens, while 3.9% have gained naturalized citizenship. At the same time, 1% of residents are non-citizens. As for race, 93.1% of locals are Caucasian, 0.9% are African American and 0.8% have Asian roots. There’s also a share of 5.1% that includes residents with two or more races.

Citizenship
U.S.-born citizens
95%
Non-U.S.-born citizens
3.9%
Non-citizens
1%
Value Percent YoY change
U.S.-born citizens 6,003 95% 0.0%
Non-U.S.-born citizens 249 3.9% -11.7%
Non-citizens 66 1% 22.2%
Racial breakdown
White
93.1%
Black or African American
0.9%
American Indian and Alaska Native
0.1%
Asian
0.8%
Native Hawaiian and other Pacific Islander
0%
Two or more races
5.1%
Other
0%
Value Percent
White 5,881 93.1%
Black or African American 57 0.9%
American Indian and Alaska Native 5 0.1%
Asian 50 0.8%
Two or more races 324 5.1%

Households in Northfield

A peek inside Northfield households

Northfield has 2,504 households, with an average of 2 members in each. Of these, 68.9% are families, while the remaining 31.1% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
2,504
2.3% year-over-year change
Average people per household
2
Non-family households
778
Family households
1,726
Value Percent YoY change
Non-family households 778 31.1% -1.3%
Family households 1,726 68.9% 4.0%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Northfield

The housing landscape of Northfield

Northfield's housing consists of 2,824 units, with 58.9% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 0.6% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 15.6% of the housing landscape.

Housing units
2,824
1.1% year-over-year change
Housing types
Value Percent
1 unit, detached 1,664 58.9%
1 unit, attached 16 0.6%
2 units 118 4.2%
3 or 4 units 122 4.3%
5 to 9 units 254 9%
10 to 19 units 55 2%
20 to 49 units 137 4.8%
50 or more units 17 0.6%
Mobile home 441 15.6%
Homes built since 2020
44
51.7% year-over-year change

The age of buildings in Northfield

In Northfield, the median construction year is 1975. About 22.4% of homes were built before the 1940s, with another 6% going up by 1949. Most development happened in the second half of the 20th century. Then, 14% of homes were added from 2000 to 2009, 5.1% between 2010 and 2019, and 1.6% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 631 22.4% -4.4%
Built between 1940 and 1949 169 6% -2.3%
Built between 1950 and 1959 73 2.6% -17.1%
Built between 1960 and 1969 226 8% 24.2%
Built between 1970 and 1979 601 21.3% 19.7%
Built between 1980 and 1989 448 15.9% -2.8%
Built between 1990 and 1999 90 3.2% -13.5%
Built between 2000 and 2009 396 14% -7.3%
Built between 2010 and 2019 145 5.1% -11.6%
Built in 2020 or later 44 1.6% 51.7%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Northfield occupancy rates

Out of the 2,504 occupied housing units in Northfield, 69.1% are owner-occupied, while 30.9% are lived in by tenants. Meanwhile, 11.3% of all homes on the local market sit vacant.

Occupied housing units
2,504
2.3% year-over-year change
Occupancy breakdown
Renter occupied
773
Owner occupied
1,731
Value Percent YoY
change
Renter occupied 773 30.9% 0.9%
Owner occupied 1,731 69.1% 3.0%
Unoccupied housing units
11.3%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Northfield housing costs

Housing costs in Northfield come to a median of $1,162 per month, while tenants specifically pay a median gross rent of $1,019.

Median housing costs per month
$1,162/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Northfield
$1,019/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Northfield

Northfield education at a glance

About 46.6% of the population in Northfield went to high school, while 14.6% pursued college studies. Another 11.7% earned an associate degree and 15.4% hold a bachelor’s. Meanwhile, 10.5% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 60 1.2% -10.4%
High school diploma 2,402 46.6% 4.0%
College diploma 754 14.6% -15.7%
Associate degree 604 11.7% 12.7%
Bachelor's degree 795 15.4% 13.4%
Graduate degree 544 10.5% -0.9%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Northfield

How much people earn in Northfield

The average annual household income in Northfield was $89,674 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -0.2% change from the previous year. At the same time, the median income stood at $82,425, reflecting a +4% shift over the same period.

Average household income in Northfield
$89,674/year
-0.2% year-over-year change
Median household income in Northfield
$82,425/year
4.0% year-over-year change

Northfield income by age

In Northfield, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $104,563. Those with someone between 45 and 64 in charge, often well established professionally, earn $96,528 overall. Overall, 89.8% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $104,563 18.4%
45 - 64 $96,528 -8.8%
Over 65 $43,244 -5.4%
Above poverty level
5,437
Below poverty level
617
Value Percent YoY
change
Above poverty level 5,437 89.8% -1.2%
Below poverty level 617 10.2% 2.7%

Employment in Northfield

Workforce and job types in Northfield

71.2% of the working population are employed in professional or administrative positions, while 28.8% are in hands-on or service-based jobs. Also, 11.1% run their own businesses, 59.3% are employed by private companies, and 14.2% work in the public sector.

Workforce demographics

White collar
2,432
Blue collar
982
Value Percent YoY change
White collar 2,432 71.2% 2.7%
Blue collar 982 28.8% -6.1%
Employer type
Self employees
11.1%
Private companies
59.3%
Governmental workers
14.2%
Not for profit companies
15.3%
Value Percent YoY change
Self employees 380 11.1% 5.3%
Private companies 2,024 59.3% -8.7%
Governmental workers 486 14.2% 15.7%
Not for profit companies 523 15.3% 25.1%

Transportation in Northfield

How people get around in Northfield

Commuting methods vary: 97.3% of residents travel by personal vehicle and 1.2% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 2,990 97.3% 3.7%
Bus or trolleybus 34 1.1% 41.7%
Bicycle 13 0.4% -45.8%
Walk 37 1.2% 15.6%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Northfield by zipcode?

Zipcode Population Number of households Median income Average income
03276 9,015 3,573 $82,425 $92,129

Explore more communities

FAQs about Northfield demographics 

What is the total population of Northfield?

Northfield has a total population of 6,317 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -0.3% compared to a year ago.

What is the gender ratio in Northfield?

The gender ratio in Northfield is as follows:
  • 48.4% males (3,054 residents)
  • 51.6% females (3,263 residents)

What is the median age in Northfield?

The median age in Northfield is 45.8.

What is the age distribution of the population in Northfield?

The age distribution in Northfield is as follows:
  • Under 15: 14.8% (938 residents)
  • Ages 15-24: 8.4% (533 residents)
  • Ages 25-44: 25.6% (1,615 residents)
  • Ages 45-64: 30% (1,898 residents)
  • Over 65: 21.1% (1,335 residents)

What is the racial and ethnic makeup of Northfield?

The racial and ethnic makeup of Northfield is as follows:
  • White: 93.1% (5,881 residents)
  • Black or African American: 0.9% (57 residents)
  • American Indian and Alaska Native: 0.1% (5 residents)
  • Asian: 0.8% (50 residents)
  • Native Hawaiian and Other Pacific Islander: 0% ( residents)
  • Two or More Races: 5.1% (324 residents)
  • Other: 0% ( residents)

What percentage of the population in Northfield are U.S.-born citizens?

U.S.-born citizens represent 95% of the population in Northfield.

How many housing units are there in Northfield?

There are 2,824 housing units in Northfield, reflecting a +1.1% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Northfield and what is the average household size?

Northfield has a total of 2,504 households, with an average of 2 people in each.

What is the median household income in Northfield?

Northfield has a median household income of $82,425, representing a +4.0% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Northfield?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 71.2% (2,432 residents)
  • Blue-collar workers: 28.8% (982 residents)

Places of employment:
  • Self-employed: 11.1% (380 residents)
  • Private companies: 59.3% (2,024 residents)
  • Governmental workers: 14.2% (486 residents)
  • Not-for-profit companies: 15.3% (523 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025