Derry, NH demographics:
population, income, and more

Total population
21,339
-1.5% year-over-year change
Median household income
$91,673/yr
3.1% year-over-year change
Housing units
9,904
2.6% year-over-year change

Derry population

How many people live in Derry

Derry is home to 21,339 residents, according to the most recent Census data. Gender-wise, 47.6% of Derry locals are male, and 52.4% are female.

Total population
21,339
-1.5% year-over-year change
Gender ratio
Male
47.6%
10,166
Female
52.4%
11,173
Value Percent YoY change
Male 10,166 47.6% 0.3%
Female 11,173 52.4% -3.1%
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 Derry is 41, with the population distributed as follows: about 14.6% are children under 15, then 14.2% are in the 15 to 24 age group. Adults between 25 and 44 make up 26.3% of the population, while another 30.1% fall into the 45 to 64 bracket. Finally, around 14.8% are 65 or older.

Median age
41
Age breakdown
Under 15
14.6%
15 to 24
14.2%
25 to 44
26.3%
45 to 64
30.1%
Over 65
14.8%
Value Percent YoY change
Under 15 3,105 14.6% -1.8%
15 to 24 3,037 14.2% -2.1%
25 to 44 5,604 26.3% -8.4%
45 to 64 6,427 30.1% 1.4%
Over 65 3,166 14.8% 7.3%
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 Derry, 93.6% of the population are US-born citizens, while 3.6% have gained naturalized citizenship. At the same time, 2.8% of residents are non-citizens. As for race, 90.9% of locals are Caucasian, 0.1% are African American and 2.9% have Asian roots. There’s also a share of 4.5% that includes residents with two or more races.

Citizenship
U.S.-born citizens
93.6%
Non-U.S.-born citizens
3.6%
Non-citizens
2.8%
Value Percent YoY change
U.S.-born citizens 19,978 93.6% -2.5%
Non-U.S.-born citizens 771 3.6% 7.4%
Non-citizens 590 2.8% 28.5%
Racial breakdown
White
90.9%
Black or African American
0.1%
American Indian and Alaska Native
0.2%
Asian
2.9%
Native Hawaiian and other Pacific Islander
0%
Two or more races
4.5%
Other
1.4%
Value Percent
White 19,395 90.9%
Black or African American 24 0.1%
American Indian and Alaska Native 34 0.2%
Asian 623 2.9%
Two or more races 969 4.5%
Other 294 1.4%

Households in Derry

A peek inside Derry households

Derry has 8,829 households, with an average of 2 members in each. Of these, 63% are families, while the remaining 37% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
8,829
-0.6% year-over-year change
Average people per household
2
Non-family households
3,264
Family households
5,565
Value Percent YoY change
Non-family households 3,264 37% -1.1%
Family households 5,565 63% -0.3%
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 Derry

The housing landscape of Derry

Derry's housing consists of 9,904 units, with 40.5% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 12.8% 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
9,904
2.6% year-over-year change
Housing types
Value Percent
1 unit, detached 4,014 40.5%
1 unit, attached 1,267 12.8%
2 units 578 5.8%
3 or 4 units 312 3.2%
5 to 9 units 370 3.7%
10 to 19 units 728 7.4%
20 to 49 units 2,345 23.7%
50 or more units 128 1.3%
Mobile home 162 1.6%
Homes built since 2020
88
214.3% year-over-year change

The age of buildings in Derry

In Derry, the median construction year is 1982. About 9.6% of homes were built before the 1940s, with another 3.8% going up by 1949. Most development happened in the second half of the 20th century. Then, 7.9% of homes were added from 2000 to 2009, 2.4% between 2010 and 2019, and 0.9% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 946 9.6% -12.3%
Built between 1940 and 1949 373 3.8% 42.9%
Built between 1950 and 1959 474 4.8% -6.9%
Built between 1960 and 1969 579 5.8% 2.3%
Built between 1970 and 1979 1,865 18.8% -7.2%
Built between 1980 and 1989 3,199 32.3% 6.9%
Built between 1990 and 1999 1,353 13.7% 9.6%
Built between 2000 and 2009 785 7.9% 0.8%
Built between 2010 and 2019 242 2.4% 26.0%
Built in 2020 or later 88 0.9% 214.3%
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.

Derry occupancy rates

Out of the 8,829 occupied housing units in Derry, 59.1% are owner-occupied, while 40.9% are lived in by tenants. Meanwhile, 10.9% of all homes on the local market sit vacant.

Occupied housing units
8,829
-0.6% year-over-year change
Occupancy breakdown
Renter occupied
3,613
Owner occupied
5,216
Value Percent YoY
change
Renter occupied 3,613 40.9% -0.9%
Owner occupied 5,216 59.1% -0.4%
Unoccupied housing units
10.9%
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.

Derry housing costs

Housing costs in Derry come to a median of $1,759 per month, while tenants specifically pay a median gross rent of $1,549.

Median housing costs per month
$1,759/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 Derry
$1,549/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 Derry

Derry education at a glance

About 35.7% of the population in Derry went to high school, while 21.8% pursued college studies. Another 7.5% earned an associate degree and 23.6% hold a bachelor’s. Meanwhile, 10% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 253 1.5% -5.2%
High school diploma 6,099 35.7% -4.4%
College diploma 3,728 21.8% -8.4%
Associate degree 1,278 7.5% 9.9%
Bachelor's degree 4,026 23.6% 6.3%
Graduate degree 1,707 10% 5.0%
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 Derry

How much people earn in Derry

The average annual household income in Derry was $112,372 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -0.8% change from the previous year. At the same time, the median income stood at $91,673, reflecting a +3.1% shift over the same period.

Average household income in Derry
$112,372/year
-0.8% year-over-year change
Median household income in Derry
$91,673/year
3.1% year-over-year change

Derry income by age

In Derry, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $122,260. Those with someone between 45 and 64 in charge, often well established professionally, earn $99,539 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $86,830, while those led by someone over 65, many of whom may be retired, have about $56,563 in earnings. Overall, 95.6% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $86,830 0.6%
25 - 44 $122,260 16.3%
45 - 64 $99,539 -3.8%
Over 65 $56,563 15.2%
Above poverty level
19,985
Below poverty level
918
Value Percent YoY
change
Above poverty level 19,985 95.6% -0.9%
Below poverty level 918 4.4% -14.0%

Average renter income in Derry

To get a better sense of what renters earn on average in Derry, their median household income was $50,463 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 36.8%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$50,463
Rent-to-income ratio
36.8%
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 Derry

Workforce and job types in Derry

The job market in Derry is powered by 12,041 working residents, spread across a range of industries and roles. 76.8% of the working population are employed in professional or administrative positions, while 23.2% are in hands-on or service-based jobs. Also, 7.5% run their own businesses, 71.3% are employed by private companies, and 13.9% work in the public sector.

Workforce demographics

Working population
12,041
-0.3% year-over-year change
White collar
9,251
Blue collar
2,790
Value Percent YoY change
White collar 9,251 76.8% -3.4%
Blue collar 2,790 23.2% 11.4%
Employer type
Self employees
7.5%
Private companies
71.3%
Governmental workers
13.9%
Not for profit companies
7.3%
Value Percent YoY change
Self employees 901 7.5% -6.5%
Private companies 8,589 71.3% 1.1%
Governmental workers 1,677 13.9% 2.4%
Not for profit companies 874 7.3% -11.7%
Unemployment rate
3.2%
-41.3% year-over-year change

Available workforce

The unemployment rate in Derry stands at 3.2%, 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 Derry

How people get around in Derry

Commuting methods vary: 84.1% of residents travel by personal vehicle and 0.7% 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 9,953 84.1% 3.1%
Bus or trolleybus 13 0.1% -82.4%
Walk 80 0.7% -63.8%
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.

Find your place

Explore more communities

FAQs about Derry demographics 

What is the total population of Derry?

Derry has a total population of 21,339 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 -1.5% compared to a year ago.

What is the gender ratio in Derry?

The gender ratio in Derry is as follows:
  • 47.6% males (10,166 residents)
  • 52.4% females (11,173 residents)

What is the median age in Derry?

The median age in Derry is 41.

What is the age distribution of the population in Derry?

The age distribution in Derry is as follows:
  • Under 15: 14.6% (3,105 residents)
  • Ages 15-24: 14.2% (3,037 residents)
  • Ages 25-44: 26.3% (5,604 residents)
  • Ages 45-64: 30.1% (6,427 residents)
  • Over 65: 14.8% (3,166 residents)

What is the racial and ethnic makeup of Derry?

The racial and ethnic makeup of Derry is as follows:
  • White: 90.9% (19,395 residents)
  • Black or African American: 0.1% (24 residents)
  • American Indian and Alaska Native: 0.2% (34 residents)
  • Asian: 2.9% (623 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 4.5% (969 residents)
  • Other: 1.4% (294 residents)

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

U.S.-born citizens represent 93.6% of the population in Derry.

How many housing units are there in Derry?

There are 9,904 housing units in Derry, reflecting a +2.6% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Derry has a total of 8,829 households, with an average of 2 people in each.

What is the median household income in Derry?

Derry has a median household income of $91,673, representing a +3.1% shift from the previous year, according to the U.S. Census Bureau.

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

The employment rate is 96.8% in Derry, with a workforce of 12,041 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 76.8% (9,251 residents)
  • Blue-collar workers: 23.2% (2,790 residents)

Places of employment:
  • Self-employed: 7.5% (901 residents)
  • Private companies: 71.3% (8,589 residents)
  • Governmental workers: 13.9% (1,677 residents)
  • Not-for-profit companies: 7.3% (874 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