Ottawa County, OH Population

Overview

40,479

Total Population

49.6

Median age

49.61%

Female population %

101.6:100

Gender ratio (M:F)

55-59 years

Largest age group

67.7

Total dependency ratio

White

Largest racial group

2,129

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Ottawa County is 49.6, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Ottawa County's population under 18 was 18.54%, compared to the 22.51% nationwide.
Ottawa County's elderly or the senior population (over 65 age) was 25.51% as compared to 16.04% nationwide.
Of the total population in Ottawa County, 14.86% were under the age of 15, 14.31% aged 15 to 29, 45.31% aged 30 to 64, 22.43% aged 65 to 84, and 3.08% were 85 years of age and older.

There are 313 less females than males in Ottawa County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 49.61% females and 50.39% males in Ottawa County, OH.
The Ottawa County, OH gender ratio is 101.6:100 i.e. 101.6 men to 100 women (1.016).
For male population, the largest age group is 55-59 years with a population of 1,840.
For the female population, the largest age group is 60-64 years with a population of 1,832.

Ottawa County's population has become increasingly diverse:

Racial distribution of Ottawa County population: 93.75% are White, 1.10% are Black or African American, 0.24% are American Indian and Alaska Native, 0.29% are Asian, 0.01% are Native Hawaiian and other Pacific Islander, 1.88% are some other race and 2.72% are multiracial.
Ottawa County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 2,129 is Hispanic or Latino (of any race), and 38,35 (94.74% of the total population) is Non-Hispanic.
The largest racial group in Ottawa County is White with a population of 37,949 (93.75% of the total population).

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

The peak population was 41,359 in the year 2010
From 2000 to 2010, Ottawa County's population increased by 384 (0.94%), as compared to the national growth of 9.63%.
From 2010 to 2020, Ottawa County's population decreased by 1,072 (2.59%), 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, Ottawa County's population was lowest in year 2022 at 39,978.