Islip, New York Population

Overview

339,596

Total Population

38.7

Median age

50.02%

Female population %

99.9:100

Gender ratio (M:F)

50-54 years

Largest age group

47.1

Total dependency ratio

White

Largest racial group

117,977

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Islip town's population is old compared to the rest of the country:

The median age in Islip town is 38.7, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Islip town's population under 18 was 22.37%, compared to the 22.51% nationwide.
Islip town's elderly or the senior population (over 65 age) was 13.66% as compared to 16.04% nationwide.
Of the total population in Islip town, 18.35% were under the age of 15, 20.07% aged 15 to 29, 47.93% aged 30 to 64, 11.88% aged 65 to 84, and 1.78% were 85 years of age and older.

There are 144 more females than males in Islip town:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.02% females and 49.98% males in Islip, New York.
The Islip, New York gender ratio is 99.9:100 i.e. 99.9 men to 100 women (0.999).
For male population, the largest age group is 50-54 years with a population of 12,458.
For the female population, the largest age group is 50-54 years with a population of 13,385.

Islip town's population has become increasingly diverse:

Racial distribution of Islip town population: 67.92% are White, 9.02% are Black or African American, 0.28% are American Indian and Alaska Native, 3.65% are Asian, 0.04% are Native Hawaiian and other Pacific Islander, 11.82% are some other race and 7.27% are multiracial.
Islip town's racial breakdown clearly shows that there is an absolute majority of White population in the town.
By ethnicity, 117,977 is Hispanic or Latino (of any race), and 221,619 (65.26% of the total population) is Non-Hispanic.
The largest racial group in Islip town is White with a population of 230,64 (67.92% of the total population).

Islip town's population has already reached its peak and is showing a trend of decline:

The peak population was 340,222 in the year 2021
From 2000 to 2010, Islip town's population increased by 12,446 (3.85%), as compared to the national growth of 9.63%.
From 2010 to 2020, Islip town's population increased by 3,504 (1.04%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Islip town's population was lowest in year 2000 at 323,094.