Ronkonkoma, NY Demographics

A map of Ronkonkoma's Population by Race

Ronkonkoma, New York has an estimated population of 18,709, a slight decrease from the 18,955 recorded in the 2020 Census. The population is 62.4% White, 24.7% Hispanic, 6.1% Asian, 5.4% Black, 1.2% Multiracial, and 0.3% Native American/Other. This demographic dot map shows the population of Ronkonkoma, with one dot drawn for each person counted by the Census, color-coded by race.

Ronkonkoma has become considerably more racially diverse since the 2020 Census. It is considerably less diverse than New York overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Ronkonkoma, that probability was 45.5% in 2020 and 54.3% in the most recent ACS estimates.

Ronkonkoma is ranked the 97th most populous place in New York, out of 1,291 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). Ronkonkoma was ranked the 95th most populous place in the 2020 Census.

Ronkonkoma's White Population

11,669 residents of Ronkonkoma, or 62.4% of the population, identify as White. The share of White residents in Ronkonkoma is higher than in New York overall, where 52.8% of the population is White. Ronkonkoma ranks 989th statewide in terms of White residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Ronkonkoma's White population has declined by an estimated 14.5%. White residents' share of Ronkonkoma's population has decreased from 72.0% to 62.4%.

Ronkonkoma is more White than neighboring Islandia (29.1% White). Ronkonkoma is less White than neighboring Lake Ronkonkoma (68.5% White), Bohemia (81.2% White), Nesconset (74% White), and Holbrook (74.8% White).

Ronkonkoma's Black Population

1,001 residents of Ronkonkoma, or 5.4% of the population, identify as Black. The share of Black residents in Ronkonkoma is lower than in New York overall, where 13.4% of the population is Black. Ronkonkoma ranks 397th statewide in terms of Black residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Ronkonkoma's Black population has grown by an estimated 82.7%. Black residents' share of Ronkonkoma's population has increased from 2.9% to 5.4%.

Ronkonkoma is more Black than neighboring Lake Ronkonkoma (3.4% Black), Bohemia (2.1% Black), Nesconset (3.6% Black), and Holbrook (2.3% Black). Ronkonkoma is less Black than neighboring Islandia (17.5% Black).

Ronkonkoma's Asian Population

1,148 residents of Ronkonkoma, or 6.1% of the population, identify as Asian. The share of Asian residents in Ronkonkoma is slightly lower than in New York overall, where 9% of the population is Asian. Ronkonkoma ranks 195th statewide in terms of Asian residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Ronkonkoma's Asian population has declined by an estimated 1.5%. Asian residents' share of Ronkonkoma's population has remained roughly unchanged at 6.1%.

Ronkonkoma is more Asian than neighboring Bohemia (5.9% Asian), and Holbrook (3.5% Asian). Ronkonkoma is less Asian than neighboring Lake Ronkonkoma (9% Asian), Islandia (6.3% Asian), and Nesconset (7.2% Asian).

Ronkonkoma's Hispanic Population

4,612 residents of Ronkonkoma, or 24.7% of the population, identify as Hispanic. The share of Hispanic residents in Ronkonkoma is slightly higher than in New York overall, where 19.8% of the population is Hispanic. Ronkonkoma ranks 224th statewide in terms of Hispanic residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Ronkonkoma's Hispanic population has grown by an estimated 63.9%. Hispanic residents' share of Ronkonkoma's population has increased from 14.8% to 24.7%.

Ronkonkoma is more Hispanic than neighboring Lake Ronkonkoma (14.8% Hispanic), Bohemia (9.6% Hispanic), Nesconset (10.5% Hispanic), and Holbrook (16.7% Hispanic). Ronkonkoma is less Hispanic than neighboring Islandia (32% Hispanic).

Ronkonkoma's Native American/Other Population

61 residents of Ronkonkoma, or 0.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Ronkonkoma is comparable to the share in New York overall, where 1.2% of the population is Native American/Other. Ronkonkoma ranks 166th statewide in terms of Native American/Other residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Ronkonkoma's Native American/Other population has declined by an estimated 74.6%. Native American/Other residents' share of Ronkonkoma's population has decreased from 1.3% to 0.3%.

Ronkonkoma is more Native American/Other than neighboring Lake Ronkonkoma (0.1% Native American/Other), Bohemia (0% Native American/Other), Nesconset (0% Native American/Other), and Holbrook (0.2% Native American/Other). Ronkonkoma is less Native American/Other than neighboring Islandia (10.6% Native American/Other).

Ronkonkoma's Multiracial Population

218 residents of Ronkonkoma, or 1.2% of the population, identify as Multiracial. The share of Multiracial residents in Ronkonkoma is slightly lower than in New York overall, where 3.8% of the population is Multiracial. Ronkonkoma ranks 827th statewide in terms of Multiracial residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Ronkonkoma's Multiracial population has declined by an estimated 60.1%. Multiracial residents' share of Ronkonkoma's population has decreased from 2.9% to 1.2%.

Ronkonkoma is less Multiracial than neighboring Lake Ronkonkoma (4.2% Multiracial), Islandia (4.4% Multiracial), Nesconset (4.7% Multiracial), and Holbrook (2.5% 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.