Marlborough, NH demographics:
population, income, and more

Total population
1,048
13.3% year-over-year change
Median household income
$67,356/yr
2.4% year-over-year change
Housing units
544
8.8% year-over-year change

Marlborough population

How many people live in Marlborough

Marlborough is home to 1,048 residents, according to the most recent Census data. Gender-wise, 48% of Marlborough locals are male, and 52% are female.

Total population
1,048
13.3% year-over-year change
Gender ratio
Male
48%
503
Female
52%
545
Value Percent YoY change
Male 503 48% 18.1%
Female 545 52% 9.2%
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 Marlborough is 48, with the population distributed as follows: about 13.3% are children under 15, then 12.7% are in the 15 to 24 age group. Adults between 25 and 44 make up 23.2% of the population, while another 28% fall into the 45 to 64 bracket. Finally, around 22.9% are 65 or older.

Median age
47.6
Age breakdown
Under 15
13.3%
15 to 24
12.7%
25 to 44
23.2%
45 to 64
28%
Over 65
22.9%
Value Percent YoY change
Under 15 139 13.3% 47.9%
15 to 24 133 12.7% 8.1%
25 to 44 243 23.2% 12.0%
45 to 64 293 28% 2.1%
Over 65 240 22.9% 17.6%
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

There’s also a share of 2.1% that includes residents with two or more races.

Citizenship
U.S.-born citizens
100%
Non-U.S.-born citizens
0%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 1,048 100% 14.7%
Racial breakdown
White
96%
Black or African American
1.9%
American Indian and Alaska Native
0%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
2.1%
Other
0%
Value Percent
White 1,006 96%
Black or African American 20 1.9%
Two or more races 22 2.1%

Households in Marlborough

A peek inside Marlborough households

Marlborough has 511 households, with an average of 2 members in each. Of these, 52.8% are families, while the remaining 47.2% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
511
10.1% year-over-year change
Average people per household
2
Non-family households
241
Family households
270
Value Percent YoY change
Non-family households 241 47.2% 6.6%
Family households 270 52.8% 13.4%
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 Marlborough

The housing landscape of Marlborough

Marlborough's housing consists of 544 units, with 48.4% being detached single-family homes ideal for those wanting space. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 4% of the housing landscape.

Housing units
544
8.8% year-over-year change
Housing types
Value Percent
1 unit, detached 263 48.4%
2 units 90 16.5%
3 or 4 units 53 9.7%
5 to 9 units 38 7%
20 to 49 units 78 14.3%
Mobile home 22 4%
Homes built since 2020
0
% year-over-year change

The age of buildings in Marlborough

In Marlborough, the median construction year is 1943. About 48% of homes were built before the 1940s, with another 6.2% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 261 48% 2.4%
Built between 1940 and 1949 34 6.2% 30.8%
Built between 1950 and 1959 21 3.9% 31.2%
Built between 1960 and 1969 9 1.6% -50.0%
Built between 1970 and 1979 54 9.9% 28.6%
Built between 1980 and 1989 59 10.8% -9.2%
Built between 1990 and 1999 24 4.4% -11.1%
Built between 2000 and 2009 17 3.1% 6.2%
Built between 2010 and 2019 65 12% 85.7%
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.

Marlborough occupancy rates

Out of the 511 occupied housing units in Marlborough, 51.9% are owner-occupied, while 48.1% are lived in by tenants. Meanwhile, 6.1% of all homes on the local market sit vacant.

Occupied housing units
511
10.1% year-over-year change
Occupancy breakdown
Renter occupied
246
Owner occupied
265
Value Percent YoY
change
Renter occupied 246 48.1% 5.6%
Owner occupied 265 51.9% 14.7%
Unoccupied housing units
6.1%
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.

Marlborough housing costs

Housing costs in Marlborough come to a median of $1,066 per month, while tenants specifically pay a median gross rent of $973.

Median housing costs per month
$1,066/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 Marlborough
$973/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 Marlborough

Marlborough education at a glance

About 38.7% of the population in Marlborough went to high school, while 21.4% pursued college studies. Another 5.5% earned an associate degree and 22.7% hold a bachelor’s. Meanwhile, 11.2% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 5 0.6% -37.5%
High school diploma 322 38.7% 10.7%
College diploma 178 21.4% 4.7%
Associate degree 46 5.5% 119.0%
Bachelor's degree 189 22.7% 11.8%
Graduate degree 93 11.2% 3.3%
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 Marlborough

How much people earn in Marlborough

The average annual household income in Marlborough was $71,903 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -4.4% change from the previous year. At the same time, the median income stood at $67,356, reflecting a +2.4% shift over the same period.

Average household income in Marlborough
$71,903/year
-4.4% year-over-year change
Median household income in Marlborough
$67,356/year
2.4% year-over-year change

Marlborough income by age

In Marlborough, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $67,212. Those with someone between 45 and 64 in charge, often well established professionally, earn $81,042 overall. Overall, 92.6% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $67,212 2.0%
45 - 64 $81,042 5.1%
Over 65 $52,708 -1.9%
Above poverty level
951
Below poverty level
76
Value Percent YoY
change
Above poverty level 951 92.6% 15.1%
Below poverty level 76 7.4% -16.5%

Average renter income in Marlborough

To get a better sense of what renters earn on average in Marlborough, their median household income was $31,813 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 36.7%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$31,813
Rent-to-income ratio
36.7%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Marlborough

Workforce and job types in Marlborough

The job market in Marlborough is powered by 554 working residents, spread across a range of industries and roles. 78.7% of the working population are employed in professional or administrative positions, while 21.3% are in hands-on or service-based jobs. Also, 6.7% run their own businesses, 69.1% are employed by private companies, and 12.8% work in the public sector.

Workforce demographics

Working population
554
16.6% year-over-year change
White collar
436
Blue collar
118
Value Percent YoY change
White collar 436 78.7% 12.1%
Blue collar 118 21.3% 37.2%
Employer type
Self employees
6.7%
Private companies
69.1%
Governmental workers
12.8%
Not for profit companies
11.4%
Value Percent YoY change
Self employees 37 6.7% 23.3%
Private companies 383 69.1% 24.8%
Governmental workers 71 12.8% -14.5%
Not for profit companies 63 11.4% 14.6%
Unemployment rate
0.9%
66.7% year-over-year change

Available workforce

The unemployment rate in Marlborough stands at 0.9%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Marlborough

How people get around in Marlborough

Commuting methods vary: 77.6% of residents travel by personal vehicle and 6% 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 415 77.6% 15.9%
Bicycle 12 2.2% -7.7%
Walk 32 6% 146.2%
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 Marlborough by zipcode?

Zipcode Population Number of households Median income Average income
03455 2,242 983 $69,395 $87,092

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FAQs about Marlborough demographics 

What is the total population of Marlborough?

Marlborough has a total population of 1,048 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 +13.3% compared to a year ago.

What is the gender ratio in Marlborough?

The gender ratio in Marlborough is as follows:
  • 48% males (503 residents)
  • 52% females (545 residents)

What is the median age in Marlborough?

The median age in Marlborough is 47.6.

What is the age distribution of the population in Marlborough?

The age distribution in Marlborough is as follows:
  • Under 15: 13.3% (139 residents)
  • Ages 15-24: 12.7% (133 residents)
  • Ages 25-44: 23.2% (243 residents)
  • Ages 45-64: 28% (293 residents)
  • Over 65: 22.9% (240 residents)

What is the racial and ethnic makeup of Marlborough?

The racial and ethnic makeup of Marlborough is as follows:
  • White: 96% (1,006 residents)
  • Black or African American: 1.9% (20 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 2.1% (22 residents)
  • Other: 0% (0 residents)

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

U.S.-born citizens represent 100% of the population in Marlborough.

How many housing units are there in Marlborough?

There are 544 housing units in Marlborough, reflecting a +8.8% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Marlborough has a total of 511 households, with an average of 2 people in each.

What is the median household income in Marlborough?

Marlborough has a median household income of $67,356, representing a +2.4% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Marlborough?

The employment rate is 99.1% in Marlborough, with a workforce of 554 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 78.7% (436 residents)
  • Blue-collar workers: 21.3% (118 residents)

Places of employment:
  • Self-employed: 6.7% (37 residents)
  • Private companies: 69.1% (383 residents)
  • Governmental workers: 12.8% (71 residents)
  • Not-for-profit companies: 11.4% (63 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