Ontario County, NY Population

Overview

112,060

Total Population

43.6

Median age

50.77%

Female population %

97:100

Gender ratio (M:F)

60-64 years

Largest age group

57.2

Total dependency ratio

White

Largest racial group

5,61

Hispanic population

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

TABLE OF CONTENTS

Age

Ontario County's population is old compared to the rest of the country:

The median age in Ontario County is 43.6, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Ontario County's population under 18 was 20.07%, compared to the 22.51% nationwide.
Ontario County's elderly or the senior population (over 65 age) was 20.13% as compared to 16.04% nationwide.
Of the total population in Ontario County, 16.24% were under the age of 15, 18.10% aged 15 to 29, 45.53% aged 30 to 64, 17.80% aged 65 to 84, and 2.32% were 85 years of age and older.

There are 1,716 more females than males in Ontario County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.77% females and 49.23% males in Ontario County, NY.
The Ontario County, NY gender ratio is 97:100 i.e. 97 men to 100 women (0.970).
For male population, the largest age group is 55-59 years with a population of 4,370.
For the female population, the largest age group is 60-64 years with a population of 4,766.

Ontario County's population has become increasingly diverse:

Racial distribution of Ontario County population: 91.27% are White, 2.31% are Black or African American, 0.13% are American Indian and Alaska Native, 1.43% are Asian, 1.50% are some other race and 3.36% are multiracial.
Ontario County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 5,61 is Hispanic or Latino (of any race), and 106,45 (94.99% of the total population) is Non-Hispanic.
The largest racial group in Ontario County is White with a population of 102,279 (91.27% of the total population).

Ontario County's population has not reached its peak yet and is showing a trend of further growth:

The peak population was 112,707 in the year 2022
From 2000 to 2010, Ontario County's population increased by 8,104 (8.10%), as compared to the national growth of 9.63%.
From 2010 to 2020, Ontario County's population increased by 4,144 (3.83%), 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, Ontario County's population was lowest in year 2000 at 100,079.