Counties in Maine by median household income (US single-year estimate)

Cumberland County had the highest median household income (US single-year estimate) of 16 counties in 2021, at $80,484. Washington County had the lowest, at $42,755. The median was $57,632 and the figure for Maine was $64,823. Source: the U.S. Census Bureau.

Highest80,484Cumberland County

Lowest42,755Washington County

Median57,63216 counties

Maine64,823History

Map of counties, 2021

Under 52K
52K to 56K
56K to 60K
60K to 69K
69K and over

USD, 2021. Source: U.S. Census Bureau, Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

USD. Source: U.S. Census Bureau, Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2021 USD	Change on 2020
1	Cumberland County	80,484	+6.7%
2	Sagadahoc County	75,624	+10.5%
3	York County	73,794	+8.6%
4	Knox County	68,786	+4.1%
5	Lincoln County	65,638	+1.3%
6	Androscoggin County	61,411	+6.4%
7	Kennebec County	60,449	+12.2%
8	Waldo County	58,262	+3.9%
9	Hancock County	57,001	-2.5%
10	Penobscot County	56,261	+8%
11	Franklin County	52,295	+6%
12	Oxford County	51,872	+8.9%
13	Aroostook County	51,770	+13.7%
14	Somerset County	51,040	+16.8%
15	Piscataquis County	49,999	+2.5%
16	Washington County	42,755	-12%

Other periods

About this ranking

Household income at the middle of the distribution for one year, in US dollars of that year. United States: Census Bureau Small Area Income and Poverty Estimates (SAIPE) for the nation, states and counties.

A model-based estimate that combines the one-year American Community Survey with federal tax records and other administrative data, so every county gets a figure for a single year. The national figure is the one-year ACS estimate. Not adjusted for inflation between years. The Census Bureau advises comparing years from 2006 on only. For the five-year ACS median, which also covers cities, use median_household_income.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties. https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties (Counties in Maine by median household income (US single-year estimate), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt

MLA 9

Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties, Counties in Maine by median household income (US single-year estimate), 2021. U.S. Census Bureau, 27 Jan. 2026, https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt. Invokely, https://invokely.ai/rankings/median-household-income-single-year-us/maine-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties. Counties in Maine by median household income (US single-year estimate), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt. Also distributed by Invokely, https://invokely.ai/rankings/median-household-income-single-year-us/maine-counties?period=2021.

Harvard

U.S. Census Bureau (2026) Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties, Counties in Maine by median household income (US single-year estimate), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt, via Invokely: https://invokely.ai/rankings/median-household-income-single-year-us/maine-counties?period=2021 (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_maine_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties: Counties in Maine by median household income (US single-year estimate), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/median-household-income-single-year-us/maine-counties?period=2021. Publisher attribution: U.S. Census Bureau. Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties. https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties: Counties in Maine by median household income (US single-year estimate), 2021
PY  - 2026
DA  - 2026/01/27
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt
L2  - https://invokely.ai/rankings/median-household-income-single-year-us/maine-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-household-income-single-year-us/maine-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties. https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt. Retrieved 2026-10-12.
ER  -

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Rank Counties in Maine by median household income (US single-year estimate) using official data, and cite the source.

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Questions

Which county has the highest median household income (US single-year estimate)?

Cumberland County, with $80,484 in 2021, according to the U.S. Census Bureau.

Which county has the lowest median household income (US single-year estimate)?

Washington County, with $42,755 in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties. Retrieved 2026-10-12.