Monroe County, Michigan
Located in Michigan, Monroe County has a population of 155,505 residents and a median age of 42.8 years, making it the #448 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 10.5%. The median home value is $228,900, and the median household income is $77,335, which is 3% above the national median.
Demographics
Monroe County has a population of 155,505, making it the #448 most populous county in the US. The median age is 42.8 years, which is 10.0% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Monroe County is $77,335, ranking #709 out of 3,222 counties — 2.9% above the national median. The poverty rate is 10.5% and unemployment stands at 5.1%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Monroe County is $228,900 (-18.8% vs national). Renters pay a median of $1,059/mo and the homeownership rate is 81.7%.
Median Home Value Trend
Rankings →Household Type
Education
In Monroe County, 23.3% of adults age 25+ hold a bachelor's degree or higher, which is 31.0% below the national average, ranking #1,471 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Monroe County is 76.4 years. 16.5% of adults report poor or fair health and 4.9% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
18.3% of adults in Monroe County smoke , 38.0% are obese , and 20.9% report excessive drinking. The drug overdose death rate is 32.3 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Monroe County is 2.0 per 100,000 and the suicide rate is 14.5 per 100,000. Motor vehicle deaths occur at a rate of 12.5 per 100,000.
Homicide Rate Trend
Families & Children
12.9% of children in Monroe County live in poverty and the infant mortality rate is 6.7 per 1,000 live births. The teen birth rate is 12.6 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Monroe County is 74.7%. The mean commute time is 28.8 min, which is 4.3% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Monroe County voted Republican with a margin of 27.1%. The vote was 35.7% Dem / 62.8% Rep. Compared to 2020, the margin shifted 4.4 toward Republicans .
Vote Share Over Time
About Monroe County, Michigan
Monroe County, Michigan has a total population of 155,505, making it the 448th most populous county in the United States. The median age in Monroe County is 42.8 years, which is 10.0% above the national median of 38.9 years.
The median household income in Monroe County is $77,335, which ranks #709 of 3,222 counties nationwide. This is 2.9% above the national median of $75,149. The poverty rate is 10.5%, lower than the national rate of 12.6%. The unemployment rate stands at 5.1%.
The median home value in Monroe County is $228,900, 18.8% below the national median. Renters in Monroe County pay a median gross rent of $1,059 per month. The homeownership rate is 81.7%, compared to the national rate of 64.4%.
In Monroe County, 23.3% of residents aged 25 and older hold a bachelor's degree or higher, 31.0% below the national average of 33.7%. Health insurance coverage stands at 96.6% of the population. The average commute time for workers is 28.8 min.
Monroe County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 88.5% of the population, followed by Hispanic or Latino (4.4%) and Two or More Races (4.1%).
All data for Monroe County, Michigan comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.