Local timeAugusta ·
U.S. States / Northeast · Card 019
Maine flag

Maine

The Pine Tree State

Acadia National Park protects rocky Atlantic headlands, forests and coastal habitats.

Early morning image of Frenchman Bay and the Porcupine Islands from Cadillac Mountain in Acadia
AcadiaPhoto source: National Park Service

Maine and its surroundings

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● State capital · Gold highlights Maine.
Map: Natural Earth. Neighboring states use postal abbreviations.

At a glance

Capital
Augusta
Postal abbreviation
ME
Population
1,414,874July 1, 2025 · Census estimate
Total area
91,633 km²35,380 square miles · land and water
Statehood
March 15, 1820State number 23
Region
Northeast

Sources: Census · population · Census · area

State symbols & traditions

Geography & flag

01

Location

Neighboring states: New Hampshire.

02

Landscape & places

Acadia National Park protects rocky Atlantic headlands, forests and coastal habitats. Its carriage roads and other historic routes also show how people planned access through a landscape that combines conservation and recreation.

03

Land and water

The total area includes 79,883 km² of land and 11,750 km² of water, according to Census area measurements.

Maine flag

State flag

The state coat of arms on blue, with a star and Dirigo above and Maine below.

Sources: Census · geographic reference · Census · area measurements · National Park Service · Acadia

How the landscape works

Acadia’s headlands, forests, and coastal habitats show how land and sea meet in several different ways. Its historic carriage roads also reveal choices about access: people designed routes through a protected landscape. Conservation is not always the absence of human decisions. It includes deciding where and how people can experience a place while caring for it.

History

How Maine’s separation became part of the slavery debate

Maine had been governed as part of Massachusetts. After Massachusetts agreed to separation, Maine’s application for statehood became tied to Missouri’s application. The issue was national political power: admitting another slave state without a free state would change the balance in the Senate.

The Missouri Compromise paired Maine’s admission as a free state with a path for Missouri to enter as a slave state. Maine became a state in 1820; Missouri followed in 1821. The legislation also restricted slavery in much of the remaining Louisiana Purchase. It temporarily settled the admission dispute without resolving the larger conflict over slavery.

Read more: Historical source ↗

Why this mattered

Maine’s separation from Massachusetts was a local political change that became linked to a national dispute. Admission of Maine as a free state was paired with Missouri’s admission as a slave state. The arrangement addressed the balance between free and slave states, while a geographic restriction addressed slavery in other Louisiana Purchase lands. These were connected but different parts of the compromise.

Key dates

  1. Massachusetts agreed to separation

  2. Statehood · State number 23

  3. Boundary with Canada settled by treaty

Sources: Congressional Research Service · statehood · U.S. Census Bureau · historical geography · National Park Service

People and place

Indigenous history and communities today

The Penobscot Nation’s own information connects Maine with a living Wabanaki community and government. Maine’s separation from Massachusetts did not mark the beginning of the region’s political and cultural history.

Continue with Penobscot Nation. This is one starting point, not a complete account of the peoples connected to this land.

Compare

Maine and New Hampshire

Measure Maine New Hampshire
Population (2025) 1,414,874 1,415,342
Land area (km²) 79,883 23,187
People per km² of land 17.7 61.0

New Hampshire has more people per square kilometer of land. Population density divides population by land area. It is an average across the whole jurisdiction, not a claim that residents are evenly spread out.

Calculated from the Census population series and land-area measurements used on these pages. Rounded figures; water area is excluded. Explore New Hampshire.

Economy

Main activities

In 2025, real estate and rental and leasing was the largest of the broad industry groups compared here by current-dollar output. Other major groups included educational services, health care, and social assistance, professional and business services, and government and government enterprises.

Total economic output was $102.8 billion in current dollars in 2025.

Largest industry groups · 2025

  • Real estate and rental and leasing: 16.3%
  • Educational services, health care, and social assistance: 12.7%
  • Professional and business services: 12.0%
  • Government and government enterprises: 11.4%

Share of total current-dollar GDP. These figures measure output, not employment.

Sources: BEA · annual GDP by state, SAGDP2

Production, jobs and wages answer different questions

The industry chart measures the value of production. It does not count workers. An industry with a large share of GDP need not employ the most people or pay the highest wages. Employment and wage data would be needed to answer those questions.

Population & economic trends

Population, 2020–2025

Millions of people
1.412025 · millions of people
012202020212022202320242025

July 1 resident population estimates, using the Census Bureau’s Vintage 2025 series.

Sources: U.S. Census Bureau

View data table
Population: source values
Year People
2020 1,364,546
2021 1,379,009
2022 1,391,585
2023 1,401,992
2024 1,408,438
2025 1,414,874

Real GDP, 2010–2025

Billions of chained 2017 dollars
78.202025 · billions of chained 2017 dollars
045902010201520202025

Real GDP measures economic output adjusted for inflation. The chart uses BEA’s chained 2017 dollars.

Sources: U.S. Bureau of Economic Analysis

View data table
Real GDP: source values
Year Millions of chained 2017 dollars
2010 59,958.5
2011 59,429.7
2012 59,181.7
2013 59,013.9
2014 59,589.8
2015 60,563.0
2016 62,037.1
2017 63,000.6
2018 64,806.3
2019 66,758.4
2020 67,639.2
2021 71,353.5
2022 72,884.4
2023 75,514.0
2024 77,758.6
2025 78,200.8

Read the trend, then ask what explains it

Maine’s population increased by about 3.7% between 2020 and 2025 in this series. That shows the size of the change. The chart alone cannot tell us how much came from births, deaths or migration.

Real GDP adjusts for changes in prices, so it helps compare production over time. Current-dollar GDP includes price changes. Neither measure tells us how income is distributed among residents.

Representation

Electoral votes
42024 & 2028 elections
Voting U.S. House seats
22020 Census allocation
U.S. Senate seats
2

Electoral votes equal the state’s U.S. House seats plus its two U.S. Senate seats. These allocations apply to the 2024 and 2028 presidential elections. Maine awards two electoral votes to the statewide winner and one to the winner of each congressional district.

Sources: National Archives · 2024 and 2028 electoral votes

Practice

Test your knowledge

Use the explanations and data on this page to answer ten questions. Hints and links to the relevant sections are available throughout.

10 questions about Maine

Show a hint

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Want to practice recognizing states? Try the mixed-state map quiz.

Sources & notes

Narrative and quiz updated 5 October 2026. Statistical data prepared 27 September 2026. Population: Census Bureau Vintage 2025, July 1 estimates for 2020–2025. Real GDP: BEA annual state accounts, SAGDP9, millions of chained 2017 dollars; industry shares: SAGDP2, current dollars. Data downloaded 27 September 2026. Area measurements include land and water.

Sources: Census · population estimates · BEA · state GDP · Census · area measurements · Natural Earth · map data

The capital clock shows current local time. Statistical figures are dated estimates and may be revised.

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Updated 29 October 2026. Statistics retain the dated series shown in the charts; these are not live figures. Sources are linked beside each topic.