Hamilton County, OH Population

Overview

826,790

Total Population

36.7

Median age

51.43%

Female population %

94.5:100

Gender ratio (M:F)

25-29 years

Largest age group

53.1

Total dependency ratio

White

Largest racial group

29,734

Hispanic population

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

TABLE OF CONTENTS

Age

Hamilton County's population is young compared to the rest of the country:

The median age in Hamilton County is 36.7, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Hamilton County's population under 18 was 23.14%, compared to the 22.51% nationwide.
Hamilton County's elderly or the senior population (over 65 age) was 15.35% as compared to 16.04% nationwide.
Of the total population in Hamilton County, 19.34% were under the age of 15, 20.81% aged 15 to 29, 44.50% aged 30 to 64, 13.34% aged 65 to 84, and 2.01% were 85 years of age and older.

There are 23,588 more females than males in Hamilton County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.43% females and 48.57% males in Hamilton County, OH.
The Hamilton County, OH gender ratio is 94.5:100 i.e. 94.5 men to 100 women (0.945).
For male population, the largest age group is 25-29 years with a population of 31,520.
For the female population, the largest age group is 25-29 years with a population of 32,147.

Hamilton County's population has become increasingly diverse:

Racial distribution of Hamilton County population: 66.20% are White, 25.45% are Black or African American, 0.10% are American Indian and Alaska Native, 2.70% are Asian, 0.06% are Native Hawaiian and other Pacific Islander, 1.11% are some other race and 4.38% are multiracial.
Hamilton County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 29,734 is Hispanic or Latino (of any race), and 797,056 (96.40% of the total population) is Non-Hispanic.
The largest racial group in Hamilton County is White with a population of 547,37 (66.20% of the total population).

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

The peak population was 844,207 in the year 2000
From 2000 to 2010, Hamilton County's population decreased by 41,912 (4.96%), as compared to the national growth of 9.63%.
From 2010 to 2020, Hamilton County's population increased by 28,025 (3.49%), 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, Hamilton County's population was lowest in year 2008 at 799,193.