What kinds of homes are in Merrimack, NH?

Name: Types of homes in Merrimack, NH, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Merrimack, NH has 11,145 (±465) homes (2020–2024 American Community Survey).

That is about 342 homes per square mile of land.

66.6% are detached single-family houses.

2.0% are in buildings of two to four units.

12.8% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 11,145 (±465)
Detached houses: 66.6%
2–4 unit buildings: 2.0%
5+ unit buildings: 12.8%

Homes in Merrimack by building size

Housing units by units in structure, 2020–2024
Building type	Merrimack	Hillsborough County	New Hampshire	United States
Single-family, detached	66.6% (±3.1 points)	56.6%	63.3%	61.3%
Single-family, attached (townhouse, rowhouse)	17.3% (±2.8 points)	6.3%	5.5%	6.2%
2 units	0.7% (±0.5 points)	7.5%	5.2%	3.4%
3 or 4 units	1.3% (±0.8 points)	7.0%	5.3%	4.3%
5 to 9 units	3.0% (±1.6 points)	5.0%	4.6%	4.5%
10 to 19 units	2.7% (±2.0 points)	3.9%	3.1%	4.3%
20 or more units	7.1% (±1.7 points)	11.8%	7.7%	10.3%
Mobile home	1.2% (±0.5 points)	1.9%	5.2%	5.6%
Boat, RV, van, etc.	0.1% (±0.2 points)	0.0%	0.0%	0.1%

In Merrimack, the share of homes in buildings of five or more units is lower than in Hillsborough County (20.7%).

It is not measurably different from New Hampshire (15.4%).

It is lower than the national figure (19.1%).

Homes in buildings of 5 or more units in places near Merrimack

Nearest places with a published estimate, compared with Merrimack
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Merrimack	—	12.8% (±3.1 points)	—
Litchfield	2.6 mi	4.0% (±3.0 points)	Lower
Amherst	4.4 mi	3.4% (±1.7 points)	Lower
Bedford	5.8 mi	14.8% (±3.1 points)	Not measurably different
Londonderry	6.7 mi	13.3% (±2.7 points)	Not measurably different
Nashua	7.3 mi	31.3% (±2.2 points)	Higher
Hudson (community)	7.5 mi	17.5% (±6.2 points)	Not measurably different
Hollis	7.8 mi	1.5% (±1.6 points)	Lower
Londonderry (community)	8.0 mi	15.8% (±3.9 points)	Not measurably different

Nearby places with a measurably lower figure: Litchfield, NH (4.0%), Amherst, NH (3.4%), Hollis, NH (1.5%).

Nearby places with a measurably higher figure: Nashua, NH (31.3%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Homes in buildings of 5 or more units across Hillsborough County, place by place

Rank	Place	Homes in buildings of 5 or more units
1	Manchester	32.8% (±2.0 points)
2	Nashua	31.3% (±2.2 points)
3	Peterborough	20.5% (±6.5 points)
4	Milford	18.6% (±3.8 points)
5	Bedford	14.8% (±3.1 points)
6	Goffstown	13.6% (±5.0 points)
7	Merrimack	12.8% (±3.1 points)
8	Greenville	11.9% (±5.5 points)
9	Hudson	8.0% (±2.6 points)
10	Bennington	6.8% (±3.8 points)
11	Pelham	5.3% (±2.0 points)
12	Antrim	4.8% (±4.1 points)
13	Weare	4.2% (±2.5 points)

Showing 13 of 31 places in Hillsborough County, ranked from highest to lowest.

The figures for Merrimack include the places inside it that have pages of their own: East Merrimack.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

What you can do on Seayora in Merrimack

One account for renting, owning, managing and fixing homes, with these figures beside you.

Own or manage a rental?

List it, sign the lease and collect rent online, with the figures for Merrimack beside you.

Create a landlord account · See what landlords get

Looking for a place to rent?

Browse homes for rent near Merrimack, save the ones you like and apply online.

Browse rentals · Create a renter account

Do repairs, renovations or maintenance?

Get found by owners and renters near Merrimack, and send estimates and invoices from your phone.

Join as a pro · Find a pro

Questions about Merrimack

How many homes are in Merrimack?

Merrimack, NH has an estimated 11,145 (±465) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Merrimack houses or apartments?

66.6% are detached houses and 17.3% attached houses, while 14.8% are in buildings of two or more units.

How many two-family and small multifamily homes are in Merrimack?

2.0% of homes in Merrimack are in buildings of two to four units, the small rental buildings that are often owner-occupied.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Merrimack town, Hillsborough County, New Hampshire

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Merrimack town, Hillsborough County, New Hampshire (county subdivision:47540, in state:33 county:011).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0001E, DP04_0001M, DP04_0007PE, DP04_0007PM, DP04_0008PE, DP04_0008PM, DP04_0009PE, DP04_0009PM, DP04_0010PE, DP04_0010PM, DP04_0011PE, DP04_0011PM, DP04_0012PE, DP04_0012PM, DP04_0013PE, DP04_0013PM, DP04_0014PE, DP04_0014PM, DP04_0015PE, DP04_0015PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.