Brookline, Southern New Hampshire, NH demographics:
population, income, and more

Total population
5,561
0.7% year-over-year change
Median household income
$171,046/yr
3.1% year-over-year change
Housing units
1,823
-1.8% year-over-year change

Brookline population

How many people live in Brookline

Brookline is home to 5,561 residents, according to the most recent Census data. Gender-wise, 48.3% of Brookline locals are male, and 51.7% are female.

Total population
5,561
0.7% year-over-year change
Gender ratio
Male
48.3%
2,686
Female
51.7%
2,874
Value Percent YoY change
Male 2,686 48.3% -3.5%
Female 2,874 51.7% 5.0%
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 Brookline is 41, with the population distributed as follows: about 20.9% are children under 15, then 16.2% are in the 15 to 24 age group. Adults between 25 and 44 make up 19.8% of the population, while another 31.7% fall into the 45 to 64 bracket. Finally, around 11.4% are 65 or older.

Median age
41.2
Age breakdown
Under 15
20.9%
15 to 24
16.2%
25 to 44
19.8%
45 to 64
31.7%
Over 65
11.4%
Value Percent YoY change
Under 15 1,160 20.9% 9.9%
15 to 24 902 16.2% -1.7%
25 to 44 1,098 19.8% -2.0%
45 to 64 1,764 31.7% -4.1%
Over 65 636 11.4% 8.0%
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 Brookline, 94.7% of the population are US-born citizens, while 4.7% have gained naturalized citizenship. At the same time, 0.6% of residents are non-citizens. As for race, 90.6% of locals are Caucasian, 1.1% are African American and 2.5% have Asian roots. There’s also a share of 3.7% that includes residents with two or more races.

Citizenship
U.S.-born citizens
94.7%
Non-U.S.-born citizens
4.7%
Non-citizens
0.6%
Value Percent YoY change
U.S.-born citizens 5,265 94.7% -0.0%
Non-U.S.-born citizens 262 4.7% 18.0%
Non-citizens 34 0.6% -2.9%
Racial breakdown
White
90.6%
Black or African American
1.1%
American Indian and Alaska Native
0%
Asian
2.5%
Native Hawaiian and other Pacific Islander
0%
Two or more races
3.7%
Other
2.1%
Value Percent
White 5,038 90.6%
Black or African American 61 1.1%
Asian 141 2.5%
Two or more races 205 3.7%
Other 116 2.1%

Households in Brookline

A peek inside Brookline households

Brookline has 1,775 households, with an average of 3 members in each. Of these, 81.2% are families, while the remaining 18.8% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
1,775
-1.2% year-over-year change
Average people per household
3
Non-family households
333
Family households
1,442
Value Percent YoY change
Non-family households 333 18.8% 3.7%
Family households 1,442 81.2% -2.3%
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 Brookline

The housing landscape of Brookline

Brookline's housing consists of 1,823 units, with 92.2% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 2% 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 1.6% of the housing landscape.

Housing units
1,823
-1.8% year-over-year change
Housing types
Value Percent
1 unit, detached 1,682 92.2%
1 unit, attached 36 2%
2 units 42 2.3%
3 or 4 units 11 0.6%
5 to 9 units 11 0.6%
Mobile home 30 1.6%
Boat, RV, van, etc. 12 0.7%
Homes built since 2020
70
48.9% year-over-year change

The age of buildings in Brookline

In Brookline, the median construction year is 1993. About 11.7% of homes were built before the 1940s, with another 0.6% going up by 1949. Most development happened in the second half of the 20th century. Then, 16.8% of homes were added from 2000 to 2009, 5.7% between 2010 and 2019, and 3.8% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 214 11.7% 4.4%
Built between 1940 and 1949 11 0.6% -72.5%
Built between 1950 and 1959 39 2.1% -35.0%
Built between 1960 and 1969 40 2.2% -54.5%
Built between 1970 and 1979 149 8.2% -9.2%
Built between 1980 and 1989 297 16.3% -4.2%
Built between 1990 and 1999 592 32.5% 14.1%
Built between 2000 and 2009 307 16.8% -2.2%
Built between 2010 and 2019 104 5.7% -6.3%
Built in 2020 or later 70 3.8% 48.9%
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.

Brookline occupancy rates

Out of the 1,775 occupied housing units in Brookline, 95.2% are owner-occupied, while 4.8% are lived in by tenants. Meanwhile, 2.6% of all homes on the local market sit vacant.

Occupied housing units
1,775
-1.2% year-over-year change
Occupancy breakdown
Renter occupied
86
Owner occupied
1,689
Value Percent YoY
change
Renter occupied 86 4.8% -5.5%
Owner occupied 1,689 95.2% -0.9%
Unoccupied housing units
2.6%
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.

Brookline housing costs

Housing costs in Brookline come to a median of $2,378 per month, while tenants specifically pay a median gross rent of $2,500.

Median housing costs per month
$2,378/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 Brookline
$2,500/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 Brookline

Brookline education at a glance

About 24.1% of the population in Brookline went to high school, while 18.5% pursued college studies. Another 5.7% earned an associate degree and 32.9% hold a bachelor’s. Meanwhile, 18.3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 16 0.4% 45.5%
High school diploma 983 24.1% 0.9%
College diploma 755 18.5% -4.1%
Associate degree 234 5.7% -4.5%
Bachelor's degree 1,343 32.9% -7.1%
Graduate degree 747 18.3% 5.2%
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 Brookline

How much people earn in Brookline

The average annual household income in Brookline was $203,561 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +11.1% change from the previous year. At the same time, the median income stood at $171,046, reflecting a +3.1% shift over the same period.

Average household income in Brookline
$203,561/year
11.1% year-over-year change
Median household income in Brookline
$171,046/year
3.1% year-over-year change

Brookline income by age

In Brookline, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $187,353. Those with someone between 45 and 64 in charge, often well established professionally, earn $171,262 overall. Overall, 99.4% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $187,353 1.2%
45 - 64 $171,262 2.7%
Over 65 $90,781 1.3%
Above poverty level
5,509
Below poverty level
35
Value Percent YoY
change
Above poverty level 5,509 99.4% 0.6%
Below poverty level 35 0.6% 34.6%

Employment in Brookline

Workforce and job types in Brookline

84.6% of the working population are employed in professional or administrative positions, while 15.4% are in hands-on or service-based jobs. Also, 13.6% run their own businesses, 68.2% are employed by private companies, and 12.8% work in the public sector.

Workforce demographics

White collar
2,791
Blue collar
508
Value Percent YoY change
White collar 2,791 84.6% -3.9%
Blue collar 508 15.4% 0.4%
Employer type
Self employees
13.6%
Private companies
68.2%
Governmental workers
12.8%
Not for profit companies
5.3%
Value Percent YoY change
Self employees 450 13.6% 0.2%
Private companies 2,250 68.2% -5.6%
Governmental workers 424 12.8% 16.5%
Not for profit companies 175 5.3% -18.2%

Transportation in Brookline

How people get around in Brookline

Commuting methods vary: 99% of residents travel by personal vehicle and 0.2% 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 2,337 99% -6.4%
Bus or trolleybus 6 0.2% 20.0%
Bicycle 13 0.6% 18.2%
Walk 5 0.2% -66.7%
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 Brookline by zipcode?

Zipcode Population Number of households Median income Average income
03033 5,736 1,831 $171,046 $204,597

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FAQs about Brookline demographics 

What is the total population of Brookline?

Brookline has a total population of 5,561 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 +0.7% compared to a year ago.

What is the gender ratio in Brookline?

The gender ratio in Brookline is as follows:
  • 48.3% males (2,686 residents)
  • 51.7% females (2,874 residents)

What is the median age in Brookline?

The median age in Brookline is 41.2.

What is the age distribution of the population in Brookline?

The age distribution in Brookline is as follows:
  • Under 15: 20.9% (1,160 residents)
  • Ages 15-24: 16.2% (902 residents)
  • Ages 25-44: 19.8% (1,098 residents)
  • Ages 45-64: 31.7% (1,764 residents)
  • Over 65: 11.4% (636 residents)

What is the racial and ethnic makeup of Brookline?

The racial and ethnic makeup of Brookline is as follows:
  • White: 90.6% (5,038 residents)
  • Black or African American: 1.1% (61 residents)
  • American Indian and Alaska Native: 0% ( residents)
  • Asian: 2.5% (141 residents)
  • Native Hawaiian and Other Pacific Islander: 0% ( residents)
  • Two or More Races: 3.7% (205 residents)
  • Other: 2.1% (116 residents)

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

U.S.-born citizens represent 94.7% of the population in Brookline.

How many housing units are there in Brookline?

There are 1,823 housing units in Brookline, reflecting a -1.8% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Brookline has a total of 1,775 households, with an average of 3 people in each.

What is the median household income in Brookline?

Brookline has a median household income of $171,046, representing a +3.1% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Brookline?

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

Job types:
  • White-collar workers: 84.6% (2,791 residents)
  • Blue-collar workers: 15.4% (508 residents)

Places of employment:
  • Self-employed: 13.6% (450 residents)
  • Private companies: 68.2% (2,250 residents)
  • Governmental workers: 12.8% (424 residents)
  • Not-for-profit companies: 5.3% (175 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