CountyAtlas

Maine County Map with Cities — All 16 Counties

All 16 of Maine's counties, mapped from official U.S. Census boundaries with population, income, and unemployment for every one. Color the map by any measure, tap a county for its data, or download a print-ready copy.

Maine CountiesFIPS 23
Androscoggin CountyAroostook CountyCumberland CountyFranklin CountyHancock CountyKennebec CountyKnox CountyLincoln CountyOxford CountyPenobscot CountyPiscataquis CountySagadahoc CountySomerset CountyWaldo CountyWashington CountyYork CountyPortlandLewistonBangorBiddefordSanfordAugustaWatervillePresque IsleEllsworth Piscataquis  Somerset  Portland  Lewiston  Bangor  Biddeford  Sanford  Augusta  Waterville  Presque Isle  Ellsworth PortlandLewistonBangorBiddefordSanfordWestbrookAugustaWatervilleBathPresque IsleEllsworthCaribouRockland Piscataquis  Somerset  Penobscot  Franklin  Portland  Lewiston  Bangor  Biddeford  Sanford  Westbrook  Augusta  Waterville  Bath  Presque Isle  Ellsworth  Caribou  Rockland PortlandLewistonBangorBiddefordSanfordWestbrookAugustaWatervillePresque IsleEllsworthOld TownCaribouRockland Piscataquis  Somerset  Penobscot  Oxford  Franklin  Sagadahoc  Portland  Lewiston  Bangor  Biddeford  Sanford  Westbrook  Augusta  Waterville  Presque Isle  Ellsworth  Old Town  Caribou  Rockland PortlandLewistonBangorBiddefordSanfordSacoAugustaWatervilleBathPresque IsleEllsworthOld TownCaribouRockland Aroostook  Piscataquis  Somerset  Penobscot  Oxford  Franklin  Portland  Lewiston  Bangor  Biddeford  Sanford  Saco  Augusta  Waterville  Bath  Presque Isle  Ellsworth  Old Town  Caribou  Rockland 
Albers Equal Area ConicDatum WGS 84Census PEP V2025 · Census SAIPE 2024 · BLS LAUS September 2026, preliminary · Census TIGER 2026
CountyAtlasEdition
Maine’s 16 counties, projected equal-area. Hover over a county, or tap it, for its seat and key numbers; select it for all its data.
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Tap any county for its population, income, and more.

Maine at a glance

Maine’s 16 counties, by the numbers

The table lists every county’s population, median household income, unemployment, density, and land area. Sort it by any column to find yours or rank them. A few patterns stand out:

  • Concentrated. Half of Maine’s 1,414,874 residents live in just 4 of 16 counties, and the 5 largest hold 66.7% of the total. calculated from Census PEP V2025
  • Income tracks poverty. The gap from richest to poorest runs 1.7×, and the 8 highest-income counties average 9.6% in poverty against 13.7% for the 8 lowest. calculated from Census SAIPE 2024
  • The median county. Half of Maine’s counties have fewer than 54,396 residents, and half report a median household income below $68,248. calculated from Census PEP V2025 · Census SAIPE 2024
  • Lopsided density. Only 9 of 16 counties are denser than Maine’s statewide average of 46 people per square mile. calculated from Census PEP V2025 · Census TIGER 2026
Androscoggin County116,487$68,6423.3%249/sq mi468 sq miAuburn
Aroostook County66,609$54,9654.0%10/sq mi6,671 sq miHoulton
Cumberland County317,222$93,9492.7%379/sq mi836 sq miPortland
Franklin County30,824$60,2813.9%18/sq mi1,697 sq miFarmington
Hancock County57,171$75,1572.8%36/sq mi1,587 sq miEllsworth
Kennebec County129,067$74,0483.2%149/sq mi868 sq miAugusta
Knox County41,117$73,0053.2%113/sq mi365 sq miRockland
Lincoln County36,595$79,3123.1%80/sq mi456 sq miWiscasset
Oxford County60,346$65,4873.7%29/sq mi2,077 sq miParis
Penobscot County157,967$66,1583.4%47/sq mi3,397 sq miBangor
Piscataquis County17,409$61,7064.7%4/sq mi3,961 sq miDover-Foxcroft
Sagadahoc County37,979$82,4542.6%150/sq mi254 sq miBath
Somerset County51,620$60,3144.1%13/sq mi3,924 sq miSkowhegan
Waldo County40,693$67,8543.4%56/sq mi730 sq miBelfast
Washington County31,334$55,6114.5%12/sq mi2,563 sq miMachias
York County222,434$92,0982.8%224/sq mi991 sq miAlfred

Click a column heading to sort all 16 counties. A suppressed estimate (coefficient of variation ≥ 0.30) shows a marker, never a guess. County seats are from Wikidata (CC0), each validated to a Census place inside its county. Where Wikidata has none, the seat comes from the page cited for that county in the seat file, and where the table names no seat, it says why. See the methodology.

Download & print this Maine map

Map of Maine's 16 counties on official U.S. Census boundaries, with major cities: Portland, Lewiston, Bangor, Biddeford, Sanford, Saco

Free, print-ready maps of all 16 Maine counties on official U.S. Census boundaries, with no watermark. They are public domain (CC0).

  • Full map (counties and major cities): PNG · PDF
  • Blank outline to print and label yourself: PNG · PDF
  • Counties only, labeled, for reference: PNG · PDF

Maine maps, colored by the data

Map of Maine counties shaded by population, from official U.S. Census data
Population Map by County · Census PEP V2025
Map of Maine counties shaded by median household income, from official U.S. Census data
Median Household Income Map by County · Census SAIPE 2024
Map of Maine counties shaded by unemployment rate, from U.S. Bureau of Labor Statistics data
Unemployment Rate Map by County · BLS LAUS September 2026, preliminary

Cities in Maine

Maine has 23 incorporated cities. The largest is Portland in Cumberland County with 68,854 residents. Use the search on the map above to find any city and highlight the county it sits in.

PortlandCumberland County68,854
LewistonAndroscoggin County38,324
BangorPenobscot County31,938
South PortlandCumberland County26,930
AuburnAndroscoggin County24,602
BiddefordYork County22,498
SanfordYork County22,247
SacoYork County20,819
WestbrookCumberland County20,775
AugustaKennebec County19,077
WatervilleKennebec County17,077
BrewerPenobscot County9,652
BathSagadahoc County8,815
Presque IsleAroostook County8,736
EllsworthHancock County8,657
Old TownPenobscot County7,470
CaribouAroostook County7,382
RocklandKnox County7,035
BelfastWaldo County6,986
GardinerKennebec County6,088
CalaisWashington County3,097
HallowellKennebec County2,592
EastportWashington County1,263

A city can reach into more than one county. The table names the one its center falls in; “+N more” counts the others, from the Census Bureau’s count of each city by county part Census ACS 2020–2024 place parts.

Which Maine county is the richest, largest, most crowded? The answers

  • Maine’s highest median household income is in Cumberland County ($93,949); the lowest is in Aroostook County ($54,965). Census SAIPE 2024
  • Maine’s most populous county is Cumberland County (317,222); the least populous is Piscataquis County (17,409), a 18× spread. calculated from Census PEP V2025
  • Maine’s largest county by land area is Aroostook County (6,671 sq mi); the smallest is Sagadahoc County (254 sq mi). Census TIGER 2026
  • Maine’s highest population density is in Cumberland County (379/sq mi); the lowest is in Piscataquis County (4/sq mi). calculated from Census PEP V2025 · Census TIGER 2026
  • Maine’s highest poverty rate is in Washington County (16.2%); the lowest is in York County (7.5%). Census SAIPE 2024
  • In Maine, unemployment is highest in Piscataquis County (4.7%) and lowest in Sagadahoc County (2.6%), for September 2026 (preliminary). BLS LAUS September 2026, preliminary
  • Maine’s highest median age is in Piscataquis County (51.5); the lowest is in Androscoggin County (40.5). Census ACS 2020–2024
  • Maine’s highest share of adults 25 and over with a bachelor’s degree or higher is in Cumberland County (53.0%); the lowest is in Somerset County (21.1%). Census ACS 2020–2024

Every figure is a current official estimate from the source named, never a crowd-sourced or copied value. Suppressed estimates (coefficient of variation ≥ 0.30) are omitted, never guessed. See the full methodology.

Maine counties: common questions

How many counties are in Maine?

Maine has 16 counties covering 30,845 sq mi and about 1.4M residents. Every one is on the map and in the table above.

What is the largest county in Maine?

It depends on the measure. By land area it’s Aroostook County (6,671 sq mi); by population it’s Cumberland County (317,222 residents).

What county is Portland in?

Portland, population 68,854, is in Cumberland County. Use the search on the map to find any Maine city’s county.

What is the richest county in Maine?

By median household income, Cumberland County is the richest at $93,949; the poorest is Aroostook County at $54,965. Census SAIPE 2024

What is the most populous county in Maine?

Cumberland County, with 317,222 residents, about 22.4% of Maine’s people. That is 18× the least populous, Piscataquis County (17,409).

Sources & vintages

Data current through .

By , BSc Physics, University of Ljubljana · How this site is made