What kinds of homes are in Martinsville, NJ?

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

Martinsville, NJ has 4,173 (±265) homes (2020–2024 American Community Survey).

That is about 343 homes per square mile of land.

90.5% are detached single-family houses.

0.4% are in buildings of two to four units.

7.0% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 4,173 (±265)
Detached houses: 90.5%
2–4 unit buildings: 0.4%
5+ unit buildings: 7.0%

Homes in Martinsville by building size

Housing units by units in structure, 2020–2024
Building type	Martinsville	Somerset County	New Jersey	United States
Single-family, detached	90.5% (±2.6 points)	57.8%	52.6%	61.3%
Single-family, attached (townhouse, rowhouse)	2.0% (±1.6 points)	14.5%	10.0%	6.2%
2 units	0.4% (±0.7 points)	5.2%	8.6%	3.4%
3 or 4 units	0.0% (±1.1 points)	4.5%	6.1%	4.3%
5 to 9 units	2.0% (±2.0 points)	5.1%	4.6%	4.5%
10 to 19 units	1.4% (±1.6 points)	5.1%	4.9%	4.3%
20 or more units	3.6% (±1.5 points)	7.6%	12.3%	10.3%
Mobile home	0.0% (±1.1 points)	0.2%	0.9%	5.6%
Boat, RV, van, etc.	0.0% (±1.1 points)	0.0%	0.0%	0.1%

In Martinsville, the share of homes in buildings of five or more units is lower than in Somerset County (17.8%).

It is also lower than in New Jersey (21.8%).

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

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

Nearest places with a published estimate, compared with Martinsville
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Martinsville	—	7.0% (±3.0 points)	—
Green Knoll	2.0 mi	16.8% (±5.7 points)	Higher
Somerville Borough	2.8 mi	40.0% (±5.8 points)	Higher
Finderne	2.9 mi	31.8% (±8.7 points)	Higher
Bound Brook Borough	3.2 mi	21.5% (±4.6 points)	Higher
Bridgewater Center	3.7 mi	6.2% (±4.2 points)	Not measurably different
Warren Township	3.7 mi	8.4% (±5.6 points)	Not measurably different
Liberty Corner	4.1 mi	14.4% (±8.5 points)	Not measurably different
South Bound Brook Borough	4.2 mi	9.4% (±5.0 points)	Not measurably different

Nearby places with a measurably higher figure: Green Knoll, NJ (16.8%), Somerville Borough, NJ (40.0%), Finderne, NJ (31.8%).

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 Somerset County, place by place

Rank	Place	Homes in buildings of 5 or more units
12	The Hills	19.6% (±5.1 points)
13	Green Knoll	16.8% (±5.7 points)
14	Liberty Corner	14.4% (±8.5 points)
15	East Franklin	13.6% (±8.4 points)
16	Basking Ridge	11.7% (±5.6 points)
17	Bradley Gardens	11.2% (±3.8 points)
18	Martinsville	7.0% (±3.0 points)
19	Bridgewater Center	6.2% (±4.2 points)
20	Lyons	2.8% (±4.9 points)
21	Ten Mile Run	2.4% (±9.6 points)
22	Bedminster	2.1% (±11.2 points)
23	Blackwells Mills	1.2% (±2.7 points)
24	Middlebush	0.0% (±11.1 points)

Showing 13 of 24 places in Somerset County, ranked from highest to lowest.

Martinsville is a census-designated place: an unincorporated community the Census Bureau draws for statistics, with no municipal government of its own.

It lies inside Bridgewater Township, whose figures include it.

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

Margins of error are at the 90% confidence level.

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Questions about Martinsville

How many homes are in Martinsville?

Martinsville, NJ has an estimated 4,173 (±265) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Martinsville houses or apartments?

90.5% are detached houses and 2.0% attached houses, while 7.4% are in buildings of two or more units.

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

0.4% of homes in Martinsville 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 — Martinsville CDP, New Jersey

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 Martinsville CDP, New Jersey (place:44430, in state:34).

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.