How many people live in Sagadahoc County, ME?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 37,600 people living in Sagadahoc County, ME. That makes Sagadahoc County the 12th-most populous county in Maine. It is home to 2.7% of people living in the state.
37.6K
population of Sagadahoc County, ME (2024)
2.7%
County share of the Maine population (2024)
About 37,600 people lived in Sagadahoc County, ME in 2024.
Population estimates, 2000–2024
What are Sagadahoc County, ME’s age demographics?
About 9,800 Sagadahoc County residents are aged 65 and older in 2024. That represents 26.1% of its population. For comparison, the age group represents 23.5% of Maine’s population and 18% in the US overall.
Another 6,500 Sagadahoc County residents, or 17.4% of the population, were children under 18. For comparison, the age group represents 17.6% of Maine’s population and 21.6% in the US overall.
A higher share of Sagadahoc County, ME's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Sagadahoc County, ME’s racial and ethnic demographics?
Non-Hispanic white residents make up 93.6% of the Sagadahoc County, ME population, higher than the national share of 57.5%.
In contrast, Sagadahoc County’s Hispanic population accounts for 2.2%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 1.2% 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.
Sagadahoc County, ME has a higher share of a non-Hispanic white population than Maine as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Sagadahoc County is Topsham with about 9,800 residents in 2024.
Cities and towns in Sagadahoc County, ME ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Topsham | 9,820 |
| 2. | Bath | 8,817 |
| 3. | Richmond | 3,573 |
| 4. | Woolwich | 3,226 |
| 5. | Bowdoin | 3,209 |
| 6. | Bowdoinham | 3,190 |
| 7. | Phippsburg | 2,204 |
| 8. | West Bath | 1,951 |
| 9. | Georgetown | 1,092 |
| 10. | Arrowsic | 500 |
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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.
