South Amboy, NJ Demographics

A map of South Amboy's Population by Race

South Amboy, New Jersey has an estimated population of 9,989, an increase from the 9,411 recorded in the 2020 Census. The population is 61.6% White, 22.7% Hispanic, 7.1% Black, 3.6% Asian, 2.6% Multiracial, and 2.4% Native American/Other. This demographic dot map shows the population of South Amboy, with one dot drawn for each person counted by the Census, color-coded by race.

South Amboy has become 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 South Amboy, that probability was 54.4% in 2020 and 56.2% in the most recent ACS estimates.

South Amboy is ranked the 160th 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). South Amboy was ranked the 168th most populous place in the 2020 Census.

South Amboy's White Population

6,151 residents of South Amboy, or 61.6% of the population, identify as White. The share of White residents in South Amboy is considerably higher than in New Jersey overall, where 50.9% of the population is White. South Amboy ranks 477th statewide in terms of White residents as a share of the population, out of 700 places.

Since the 2020 Census, South Amboy's White population has grown by an estimated 3.4%. White residents' share of South Amboy's population has decreased from 63.2% to 61.6%.

South Amboy is more White than neighboring Perth Amboy (7.9% White), Keasbey (15.1% White), Madison Park (29.6% White), Hopelawn (23.7% White), and Sayreville (46.9% White).

South Amboy's Black Population

706 residents of South Amboy, or 7.1% of the population, identify as Black. The share of Black residents in South Amboy is lower than in New Jersey overall, where 12.2% of the population is Black. South Amboy ranks 213th statewide in terms of Black residents as a share of the population, out of 700 places.

Since the 2020 Census, South Amboy's Black population has grown by an estimated 33.5%. Black residents' share of South Amboy's population has increased from 5.6% to 7.1%.

South Amboy is more Black than neighboring Perth Amboy (6% Black), and Hopelawn (2.5% Black). South Amboy is less Black than neighboring Keasbey (7.7% Black), Madison Park (30.5% Black), and Sayreville (11.5% Black).

South Amboy's Asian Population

359 residents of South Amboy, or 3.6% of the population, identify as Asian. The share of Asian residents in South Amboy is lower than in New Jersey overall, where 10% of the population is Asian. South Amboy ranks 267th statewide in terms of Asian residents as a share of the population, out of 700 places.

Since the 2020 Census, South Amboy's Asian population has declined by an estimated 23.6%. Asian residents' share of South Amboy's population has decreased from 5.0% to 3.6%.

South Amboy is more Asian than neighboring Perth Amboy (1.2% Asian). South Amboy is less Asian than neighboring Keasbey (7.1% Asian), Madison Park (19.3% Asian), Hopelawn (19.6% Asian), and Sayreville (16.1% Asian).

South Amboy's Hispanic Population

2,270 residents of South Amboy, or 22.7% of the population, identify as Hispanic. The share of Hispanic residents in South Amboy is comparable to the share in New Jersey overall, where 22.5% of the population is Hispanic. South Amboy ranks 105th statewide in terms of Hispanic residents as a share of the population, out of 700 places.

Since the 2020 Census, South Amboy's Hispanic population has grown by an estimated 8.5%. Hispanic residents' share of South Amboy's population has increased from 22.2% to 22.7%.

South Amboy is more Hispanic than neighboring Madison Park (18.4% Hispanic), and Sayreville (21.2% Hispanic). South Amboy is less Hispanic than neighboring Perth Amboy (83.6% Hispanic), Keasbey (66.7% Hispanic), and Hopelawn (50% Hispanic).

South Amboy's Native American/Other Population

242 residents of South Amboy, or 2.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in South Amboy is comparable to the share in New Jersey overall, where 0.9% of the population is Native American/Other. South Amboy ranks 303rd statewide in terms of Native American/Other residents as a share of the population, out of 700 places.

Since the 2020 Census, South Amboy's Native American/Other population has grown by an estimated 310.2%. Native American/Other residents' share of South Amboy's population has increased from 0.6% to 2.4%.

South Amboy is more Native American/Other than neighboring Perth Amboy (0.5% Native American/Other), Keasbey (0% Native American/Other), Madison Park (0.1% Native American/Other), Hopelawn (0% Native American/Other), and Sayreville (1.1% Native American/Other).

South Amboy's Multiracial Population

261 residents of South Amboy, or 2.6% of the population, identify as Multiracial. The share of Multiracial residents in South Amboy is comparable to the share in New Jersey overall, where 3.5% of the population is Multiracial. South Amboy ranks 312th statewide in terms of Multiracial residents as a share of the population, out of 700 places.

Since the 2020 Census, South Amboy's Multiracial population has declined by an estimated 16.3%. Multiracial residents' share of South Amboy's population has decreased from 3.3% to 2.6%.

South Amboy is more Multiracial than neighboring Perth Amboy (0.7% Multiracial), and Madison Park (2% Multiracial). South Amboy is less Multiracial than neighboring Keasbey (3.5% Multiracial), Hopelawn (4.2% Multiracial), and Sayreville (3.2% 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.