CountyAtlas

CountyAtlas Maine

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. Colour 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 County
Albers Equal Area ConicDatum NAD83Census PEP · SAIPE · BLS LAUS · TIGER
CountyAtlasEdition
Maine’s 16 counties, projected equal-area. Hover or tap a county for its name; select it for full data.
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Tap any county for its population, income, and more.

Maine at a glance

  • Scale. Maine is divided into 16 counties across 30,845 sq mi of land — an average of 1,928 sq mi each. Census TIGER
  • People. Its counties are home to 1,395,722 residents — an average of 87,233 each, or 45 per square mile statewide. Census PEP 2023
  • Water. Another 4,535 sq mi is water — 12.8% of the state’s area, led by Knox County. Census TIGER

Maine’s 16 counties, by the numbers

Every county’s population, median household income, unemployment, density, and land area — sortable by any column, so you can find yours or rank by what matters to you. A few patterns run through the data:

  • Concentrated. Half of Maine’s 1,395,722 residents live in just 4 of 16 counties, and the five largest hold 66.3% of the total. Census PEP 2023
  • Income tracks poverty. The gap from richest to poorest runs 2.0×, and the 8 highest-income counties average 9.7% in poverty against 14.2% for the 8 lowest. Census SAIPE 2023
  • Mostly small. Half of Maine’s counties have fewer than 53,914 residents, and half report a median household income below $64,929 — a few metros lift the statewide totals well above both. Census PEP 2023 · SAIPE 2023
  • Lopsided density. Only 9 of 16 counties are denser than Maine’s statewide average of 45 people per square mile — the rest are more rural. Census PEP 2023 · TIGER
Androscoggin County113,765$63,4563.2%243/sq mi468 sq miAuburn
Aroostook County67,351$56,3615.0%10/sq mi6,671 sq miHoulton
Cumberland County310,230$96,2552.6%371/sq mi836 sq miPortland
Franklin County30,828$56,5094.2%18/sq mi1,697 sq miFarmington
Hancock County56,526$72,6473.0%36/sq mi1,587 sq miEllsworth
Kennebec County127,259$64,6432.9%147/sq mi868 sq miAugusta
Knox County40,977$70,5332.9%112/sq mi365 sq miRockland
Lincoln County36,507$74,5693.1%80/sq mi456 sq miWiscasset
Oxford County59,905$60,2203.7%29/sq mi2,077 sq miParis
Penobscot County155,312$65,2153.3%46/sq mi3,397 sq miBangor
Piscataquis County17,486$51,7874.9%4/sq mi3,961 sq miDover-Foxcroft
Sagadahoc County37,513$83,1802.5%148/sq mi254 sq miBath
Somerset County51,302$56,4224.0%13/sq mi3,924 sq miSkowhegan
Waldo County40,620$68,3453.2%56/sq mi730 sq miBelfast
Washington County31,555$48,1044.7%12/sq mi2,563 sq miMachias
York County218,586$85,4452.7%221/sq mi991 sq miAlfred

All 16 counties, sortable by any column — click a heading. 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; a county with no validated seat is left blank. See the methodology.

Download & print this Maine map

Map of Maine's 16 counties — on official U.S. Census boundaries

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

  • Full map — counties + major cities: PNG · PDF
  • Blank outline — print & label it yourself: PNG · PDF
  • Counties only — clean labeled reference: PNG · PDF

Maine maps, coloured by the data

Map of Maine counties shaded by population — official U.S. Census data
Population Map by County · Census PEP 2023
Map of Maine counties shaded by median household income — official U.S. Census data
Median Household Income Map by County · Census SAIPE 2023
Map of Maine counties shaded by unemployment rate — U.S. Bureau of Labor Statistics
Unemployment Rate Map by County · BLS LAUS

Cities in Maine

Maine has 23 incorporated cities. The largest is Portland in Cumberland County with 68,505 residents. Use the search on the map above to find any city and highlight the county it sits in.

PortlandCumberland County68,505
LewistonAndroscoggin County37,886
BangorPenobscot County31,663
South PortlandCumberland County26,780
AuburnAndroscoggin County24,294
BiddefordYork County22,463
SanfordYork County22,095
SacoYork County20,636
WestbrookCumberland County20,484
AugustaKennebec County18,999
WatervilleKennebec County16,704
BrewerPenobscot County9,654
BathSagadahoc County8,801
Presque IsleAroostook County8,736
EllsworthHancock County8,550
Old TownPenobscot County7,439
CaribouAroostook County7,427
RocklandKnox County6,991
BelfastWaldo County6,985
GardinerKennebec County6,047
CalaisWashington County3,087
HallowellKennebec County2,570
EastportWashington County1,230

A city can span more than one county; each is listed in its primary county — the one its center falls in.

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

  • Maine’s highest median household income is in Cumberland County ($96,255); the lowest is in Washington County ($48,104). Census SAIPE 2023
  • Maine’s most populous county is Cumberland County (310,230); the least populous is Piscataquis County (17,486) — a 18× spread. Census PEP 2023
  • Maine’s largest county by land area is Aroostook County (6,671 sq mi); the smallest is Sagadahoc County (254 sq mi). Census TIGER
  • Maine’s highest population density is in Cumberland County (371/sq mi); the lowest is in Piscataquis County (4/sq mi). Census PEP 2023 · TIGER
  • Maine’s highest poverty rate is in Washington County (20.1%); the lowest is in Cumberland County (6.9%). Census SAIPE 2023
  • In Maine, unemployment is highest in Aroostook County (5.0%) and lowest in Sagadahoc County (2.5%), for May 2026. BLS LAUS
  • Maine’s highest median age is in Piscataquis County (51.4); the lowest is in Androscoggin County (40.8). Census ACS 2019–2023
  • Maine’s highest share of bachelor’s degrees is in Cumberland County (52.2% of adults); the lowest is in Somerset County (20.3%). Census ACS 2019–2023

Every figure is a current official estimate from the source named — not 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 above and in the table below.

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 (310,230 residents).

What county is Portland in?

Portland (population 68,505) 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 $96,255; the poorest is Washington County at $48,104 (Census SAIPE 2023).

What is the most populous county in Maine?

Cumberland County, with 310,230 residents — about 22.2% of Maine’s people, and 18× the least populous, Piscataquis County (17,486).

Sources & vintages

  • Population — PEP Vintage 2023 (July 1, 2023) — pep/charv
  • Median household income & poverty — SAIPE 2023
  • Unemployment — BLS LAUS May 2026 (preliminary)
  • Geometry & boundaries — Census TIGERweb
  • Cities & city population — Census TIGERweb Incorporated Places + ACS 5-year 2019–2023

Data current through .