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 2018, at $71,586. Aroostook County had the lowest, at $39,450. The median was $49,748 and the figure for Maine was $55,579. Source: the U.S. Census Bureau.
Map of counties, 2018
- Under 44K
- 44K to 49K
- 49K to 52K
- 52K to 57K
- 57K and over
All counties, 2018
Full ranking
| Rank | Counties | 2018 | Change on 2017 |
|---|---|---|---|
| 1 | Cumberland County | 71,586 | +1.3% |
| 2 | York County | 65,984 | -0.1% |
| 3 | Sagadahoc County | 65,969 | +8.1% |
| 4 | Knox County | 56,678 | +9.6% |
| 5 | Lincoln County | 56,211 | +8.1% |
| 6 | Kennebec County | 52,154 | -0.2% |
| 7 | Hancock County | 52,148 | +2.2% |
| 8 | Androscoggin County | 49,935 | +3.1% |
| 9 | Franklin County | 49,561 | +9.5% |
| 10 | Waldo County | 49,482 | -9.3% |
| 11 | Penobscot County | 47,840 | -4% |
| 12 | Oxford County | 44,243 | -12.2% |
| 13 | Somerset County | 43,755 | +3.1% |
| 14 | Piscataquis County | 40,066 | -1.9% |
| 15 | Washington County | 39,522 | +4.2% |
| 16 | Aroostook County | 39,450 | -7.4% |
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/2018/2018-state-and-county/est18all.txt. Retrieved 2026-10-12.Citation styles
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), 2018) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.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), 2018. U.S. Census Bureau, 27 Jan. 2026, https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt. Invokely, https://invokely.ai/rankings/median-household-income-single-year-us/maine-counties?period=2018. 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), 2018. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt. Also distributed by Invokely, https://invokely.ai/rankings/median-household-income-single-year-us/maine-counties?period=2018.
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), 2018 [Dataset]. Available at: https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt, via Invokely: https://invokely.ai/rankings/median-household-income-single-year-us/maine-counties?period=2018 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_maine_by_2018,
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), 2018}},
year = {2026},
howpublished = {Data set},
url = {https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt},
urldate = {2026-10-12},
note = {Accessed via Invokely, https://invokely.ai/rankings/median-household-income-single-year-us/maine-counties?period=2018. 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/2018/2018-state-and-county/est18all.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), 2018
PY - 2026
DA - 2026/01/27
PB - U.S. Census Bureau
DB - Invokely
UR - https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt
L2 - https://invokely.ai/rankings/median-household-income-single-year-us/maine-counties?period=2018
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/median-household-income-single-year-us/maine-counties?period=2018.
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/2018/2018-state-and-county/est18all.txt. Retrieved 2026-10-12.
ER -
Use this data in your AI agent
Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:
Rank Counties in Maine by median household income (US single-year estimate) using official data, and cite the source.
rank_places {"indicator":"median_household_income_saipe","level":"province","within":"Maine","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=median_household_income_saipe&level=province&within=Maine&limit=10Questions
Which county has the highest median household income (US single-year estimate)?
Cumberland County, with $71,586 in 2018, according to the U.S. Census Bureau.
Which county has the lowest median household income (US single-year estimate)?
Aroostook County, with $39,450 in 2018.
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.