Maine County Map With Cities
By Marko Visic · Updated Oct 5, 2026
Maine has 16 counties, covering 30,845 square miles of land. The Census Bureau estimates its population at 1,414,874 as of July 1, 2025. The largest county by land area is Aroostook County; the most populous is Cumberland County; the least populous is Piscataquis County.
Tap or click any county for details. Need a printable version? Blank Maine map (PDF/PNG/SVG).
All 16 Maine counties
| County | FIPS code | Population (July 1, 2025) ▼ | Change since April 2020 | Land area (sq mi) | People per sq mi | Median household income (2020–2024) |
|---|---|---|---|---|---|---|
| Cumberland County | 23005 | 317,222 | +4.7% | 836 | 379 | $95,677 |
| York County | 23031 | 222,434 | +4.9% | 991 | 224 | $88,333 |
| Penobscot County | 23019 | 157,967 | +3.8% | 3,397 | 47 | $66,356 |
| Kennebec County | 23011 | 129,067 | +3.7% | 868 | 149 | $69,077 |
| Androscoggin County | 23001 | 116,487 | +4.8% | 468 | 249 | $67,873 |
| Aroostook County | 23003 | 66,609 | -0.7% | 6,671 | 10 | $56,700 |
| Oxford County | 23017 | 60,346 | +4.5% | 2,077 | 29 | $60,173 |
| Hancock County | 23009 | 57,171 | +3.0% | 1,587 | 36 | $72,744 |
| Somerset County | 23025 | 51,620 | +2.3% | 3,924 | 13 | $58,179 |
| Knox County | 23013 | 41,117 | +1.3% | 365 | 113 | $74,096 |
| Waldo County | 23027 | 40,693 | +2.7% | 730 | 56 | $72,782 |
| Sagadahoc County | 23023 | 37,979 | +3.5% | 254 | 150 | $87,806 |
| Lincoln County | 23015 | 36,595 | +3.9% | 456 | 80 | $76,875 |
| Washington County | 23029 | 31,334 | +0.8% | 2,563 | 12 | $56,024 |
| Franklin County | 23007 | 30,824 | +4.7% | 1,697 | 18 | $58,675 |
| Piscataquis County | 23021 | 17,409 | +3.6% | 3,961 | 4 | $61,345 |
FIPS code: the Census Bureau’s five-digit county ID, a two-digit state code plus a three-digit county code. It is not a ZIP code.
How many counties does Maine have?
Maine has 16 counties covering 30,845 square miles. The state was admitted to the Union in 1820 as the 23rd state.
The largest county by land area is Aroostook County at 6,671 square miles, home to 66,609 residents. The most populous is Cumberland County with 317,222 residents — a density of 379 people per square mile. At the other end of the scale, Piscataquis County has 17,409 residents.
Maine’s capital is Augusta, while the largest city is Portland.
Related resources
Download a printable outline of Maine’s county boundaries from our blank map of Maine page — available in SVG, PNG, and PDF.
Use the What County Am I In? tool to detect which Maine county a GPS location or address falls in, or the Address to County Lookup for batch input.
For demographic radius analysis, the Find ZIP Codes in Radius and Population Within Radius tools let you draw a circle around any Maine address and see every ZIP code and the total population inside.
Two SimpleMapLab studies cover Maine specifically: the 100-mile radius around Augusta measures how much of the state lives within 100 miles of its capitol, and the loneliest town in Maine ranks the state’s most isolated inhabited place. The county-counts blog post puts Maine’s 16 counties in national context.
Frequently asked questions
- County Population Totals, Vintage 2025: estimates for July 1, 2025, released March 2026
- Gazetteer Files, 2026: county land and water area
- American Community Survey 5-Year Estimates, 2020–2024: median household income (table B19013)
- County boundaries on the map: US Atlas TopoJSON build of the US Census Bureau’s TIGER/Line shapefiles. All figures are US Census Bureau data in the public domain.