Martinsville, NJ Demographics

A map of Martinsville's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	7,584	9,092	65.6%	74.8%
Asian	1,940	1,565	16.8%	12.9%
Hispanic	925	847	8.0%	7.0%
Multiracial	860	379	7.4%	3.1%
Native American/Other	138	47	1.2%	0.4%
Black	112	217	1.0%	1.8%

Martinsville, New Jersey has an estimated population of 11,559, a decrease from the 12,147 recorded in the 2020 Census. The population is 65.6% White, 16.8% Asian, 8.0% Hispanic, 7.4% Multiracial, 1.2% Native American/Other, and 1.0% Black. This demographic dot map shows the population of Martinsville, with one dot drawn for each person counted by the Census, color-coded by race.

Martinsville has become considerably more racially diverse since the 2020 Census. It is considerably less diverse than New Jersey overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Martinsville, that probability was 41.7% in 2020 and 52.9% in the most recent ACS estimates.

Martinsville is ranked the 123rd most populous place in New Jersey, out of 700 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Martinsville was ranked the 112th most populous place in the 2020 Census.

Martinsville's White Population

7,584 residents of Martinsville, or 65.6% of the population, identify as White. The share of White residents in Martinsville is considerably higher than in New Jersey overall, where 50.9% of the population is White. Martinsville ranks 356th statewide in terms of White residents as a share of the population, out of 700 places.

Since the 2020 Census, Martinsville's White population has declined by an estimated 16.6%. White residents' share of Martinsville's population has decreased from 74.8% to 65.6%.

Martinsville is more White than neighboring Green Knoll (63.6% White), Finderne (38.5% White), Somerville (51.8% White), and Bound Brook (30% White). Martinsville is less White than neighboring Liberty Corner (78.7% White).

Martinsville's Black Population

112 residents of Martinsville, or 1.0% of the population, identify as Black. The share of Black residents in Martinsville is considerably lower than in New Jersey overall, where 12.2% of the population is Black. Martinsville ranks 473rd statewide in terms of Black residents as a share of the population, out of 700 places.

Since the 2020 Census, Martinsville's Black population has declined by an estimated 48.4%. Black residents' share of Martinsville's population has decreased from 1.8% to 1.0%.

Martinsville is less Black than neighboring Green Knoll (4.9% Black), Finderne (7.8% Black), Somerville (11.3% Black), Bound Brook (7.1% Black), and Liberty Corner (2.8% Black).

Martinsville's Asian Population

1,940 residents of Martinsville, or 16.8% of the population, identify as Asian. The share of Asian residents in Martinsville is higher than in New Jersey overall, where 10% of the population is Asian. Martinsville ranks 111th statewide in terms of Asian residents as a share of the population, out of 700 places.

Since the 2020 Census, Martinsville's Asian population has grown by an estimated 24.0%. Asian residents' share of Martinsville's population has increased from 12.9% to 16.8%.

Martinsville is more Asian than neighboring Somerville (10.8% Asian), Bound Brook (2.4% Asian), and Liberty Corner (8.3% Asian). Martinsville is less Asian than neighboring Green Knoll (21.7% Asian), and Finderne (18.6% Asian).

Martinsville's Hispanic Population

925 residents of Martinsville, or 8.0% of the population, identify as Hispanic. The share of Hispanic residents in Martinsville is considerably lower than in New Jersey overall, where 22.5% of the population is Hispanic. Martinsville ranks 465th statewide in terms of Hispanic residents as a share of the population, out of 700 places.

Since the 2020 Census, Martinsville's Hispanic population has grown by an estimated 9.2%. Hispanic residents' share of Martinsville's population has increased from 7.0% to 8.0%.

Martinsville is more Hispanic than neighboring Green Knoll (6.2% Hispanic), and Liberty Corner (6.3% Hispanic). Martinsville is less Hispanic than neighboring Finderne (30.7% Hispanic), Somerville (21.1% Hispanic), and Bound Brook (58.6% Hispanic).

Martinsville's Native American/Other Population

138 residents of Martinsville, or 1.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Martinsville is comparable to the share in New Jersey overall, where 0.9% of the population is Native American/Other. Martinsville ranks 514th statewide in terms of Native American/Other residents as a share of the population, out of 700 places.

Since the 2020 Census, Martinsville's Native American/Other population has grown by an estimated 193.6%. Native American/Other residents' share of Martinsville's population has increased from 0.4% to 1.2%.

Martinsville is more Native American/Other than neighboring Finderne (0% Native American/Other), Somerville (0.6% Native American/Other), and Bound Brook (0.5% Native American/Other). Martinsville is less Native American/Other than neighboring Green Knoll (1.3% Native American/Other).

Martinsville's Multiracial Population

860 residents of Martinsville, or 7.4% of the population, identify as Multiracial. The share of Multiracial residents in Martinsville is slightly higher than in New Jersey overall, where 3.5% of the population is Multiracial. Martinsville ranks 351st statewide in terms of Multiracial residents as a share of the population, out of 700 places.

Since the 2020 Census, Martinsville's Multiracial population has grown by an estimated 126.9%. Multiracial residents' share of Martinsville's population has increased from 3.1% to 7.4%.

Martinsville is more Multiracial than neighboring Green Knoll (2.4% Multiracial), Finderne (4.4% Multiracial), Somerville (4.3% Multiracial), Bound Brook (1.4% Multiracial), and Liberty Corner (2.6% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.