Highest-earning counties in Maine

Data shows that annual annual income depends heavily on an individual's educational attainment, race, ethnicity, gender, and even location. One cluster of the United States is particularly well off: The five of the seven counties with the highest median household income in the country can be found in the Washington D.C. metropolitan areas of Maryland and Northern Virginia. These counties can likely attribute their wealth to their proximity to Washington D.C., which attracts highly educated and skilled people in areas of law and public policy. And people in those fields often marry each other, making two high-earning households one very high-earning household.

The 2024 real median household income in the United States was $83,730, statistically unchanged from the 2023 estimate of $82,690, according to the U.S. Census Bureau. Stacker compiled a list of the highest-earning counties in Maine using data from the U.S. Census Bureau. Counties are ranked by 2024 5-year estimate median household income.

Keep reading to learn more about the highest-earning counties in Maine.

#16. Washington County
- Median household income: $56,024
- Households earning over $100k: 24.4%
- Households earning less than $25k: 23.0%

#15. Aroostook County
- Median household income: $56,700
- Households earning over $100k: 25.1%
- Households earning less than $25k: 21.7%

#14. Somerset County
- Median household income: $58,179
- Households earning over $100k: 24.4%
- Households earning less than $25k: 19.2%

#13. Franklin County
- Median household income: $58,675
- Households earning over $100k: 26.8%
- Households earning less than $25k: 19.5%

#12. Oxford County
- Median household income: $60,173
- Households earning over $100k: 28.4%
- Households earning less than $25k: 19.8%

#11. Piscataquis County
- Median household income: $61,345
- Households earning over $100k: 24.1%
- Households earning less than $25k: 20.0%

#10. Penobscot County
- Median household income: $66,356
- Households earning over $100k: 32.4%
- Households earning less than $25k: 17.8%

#9. Androscoggin County
- Median household income: $67,873
- Households earning over $100k: 30.7%
- Households earning less than $25k: 16.4%

#8. Kennebec County
- Median household income: $69,077
- Households earning over $100k: 33.0%
- Households earning less than $25k: 15.3%

#7. Hancock County
- Median household income: $72,744
- Households earning over $100k: 34.4%
- Households earning less than $25k: 15.4%

#6. Waldo County
- Median household income: $72,782
- Households earning over $100k: 32.6%
- Households earning less than $25k: 15.9%

#5. Knox County
- Median household income: $74,096
- Households earning over $100k: 34.5%
- Households earning less than $25k: 13.7%

#4. Lincoln County
- Median household income: $76,875
- Households earning over $100k: 37.9%
- Households earning less than $25k: 13.4%

#3. Sagadahoc County
- Median household income: $87,806
- Households earning over $100k: 43.3%
- Households earning less than $25k: 13.9%

#2. York County
- Median household income: $88,333
- Households earning over $100k: 43.7%
- Households earning less than $25k: 11.9%

#1. Cumberland County
- Median household income: $95,677
- Households earning over $100k: 47.9%
- Households earning less than $25k: 10.9%