Miami County, OH — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
109,549
Male
54,495
49.7%
Female
55,054
50.3%
Median Age
41.1 yrs
Avg Household Size
2.4
Foreign Born
2.9%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher17.3%
High School or Higher43.7%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
6.0%
Disability
0.0%
Non-English Home
5.0%
Married
45.3%
Miami County, OH has a population of 109,549 according to 2023 Census Bureau estimates. The median age is 41.1 years. The largest racial or ethnic group is White at 91.2% of the population. 17.3% of residents hold a bachelor's degree or higher. 2.9% of residents are foreign-born.