How many people live in Lenawee County, MI?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 97,700 people living in Lenawee County, MI. That makes Lenawee County the 21st-most populous county in Michigan. It is home to 0.97% of people living in the state.
97.7K
population of Lenawee County, MI (2024)
0.97%
County share of the Michigan population (2024)
About 97,700 people lived in Lenawee County, MI in 2024.
Population estimates, 2000–2024
What are Lenawee County, MI’s age demographics?
About 21,100 Lenawee County residents are aged 65 and older in 2024. That represents 21.5% of its population. For comparison, the age group represents 19.6% of Michigan’s population and 18% in the US overall.
Another 19,600 Lenawee County residents, or 20.1% of the population, were children under 18. For comparison, the age group represents 20.8% of Michigan’s population and 21.6% in the US overall.
A higher share of Lenawee County, MI's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Lenawee County, MI’s racial and ethnic demographics?
Non-Hispanic white residents make up 85.4% of the Lenawee County, MI population, higher than the national share of 57.5%.
In contrast, Lenawee County’s Hispanic population accounts for 9.3%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 2.4% of the county, compared with 12.6% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Lenawee County, MI has a higher share of a non-Hispanic white population than Michigan as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Lenawee County, MI is Adrian with about 20,300 residents in 2024.
Cities and towns in Lenawee County, MI ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Adrian | 20,259 |
| 2. | Tecumseh | 8,606 |
| 3. | Raisin | 8,092 |
| 4. | Madison | 7,592 |
| 5. | Adrian | 6,313 |
| 6. | Blissfield (pt.) | 3,248 |
| 7. | Franklin | 3,039 |
| 8. | Clinton | 2,485 |
| 9. | Hudson | 2,361 |
| 10. | Morenci | 2,220 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
