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Calais, Maine

City in Washington County, Maine · ZIP 04619

  • Washington County
  • Census data · ACS 2019-2023
  • 3 public schools
Join CalaisAsk CalaisBusinessesPeople
  • 3,105 (2024 estimate)Population
  • 1,456Households
  • $48,654Median household income
  • $111,800Median home value
  • 3Public schools
  • 1ZIP codes

About Calais

This page shows only what has been published about Calais: Census facts with their sources first, then its businesses, jobs, events, people in public roles, housing and questions as they are added. Nothing here is written by the town government.

Town intelligenceOfficial sources, refreshed yearly

Population, 2000 to 2020−10.7%
3k3.2k3.4k3.6k2000: 3,44720002010: 3,12320102020: 3,07920203,4473,079
Population of Calais at each census
CensusPopulation
20003,447
20103,123
20203,079

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, place level, state 23, retrieved November 14, 2026; Census 2010 Summary File 1: total population, place level, state 23, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 23, retrieved November 14, 2026.

Household income in Calais
Under $50k50.5%
$50k to $100k26.7%
$100k to $150k9.8%
$150k to $200k11.4%
$200k and over1.6%

Median household income $48,654 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, place level, state 23, retrieved November 14, 2026.

Housing tenure in Calais
Owner occupied
987 units
Renter occupied
469 units
Vacancy rate
9.2%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, place level, state 23, retrieved November 14, 2026.

Calais compared with its county and state
Calais compared with its county and state, American Community Survey 2019-2023
MeasureCalaisWashington CountyMaine
Population3,08731,2611,377,400
Median household income$48,654$52,237$71,773
Median age43.848.644.8
Median home value$111,800$147,100$266,400
Bachelor’s degree or higher26.1%24.9%35.3%
Foreign-born residents6.2%3.3%3.9%
Owner-occupied homes67.8%78.1%74.0%
Mean commute to work13.4 minutes21.6 minutes24.4 minutes

Source: American Community Survey 5-year data profile 2019–2023, place level, state 23, retrieved November 14, 2026.

CommunityRules and moderation

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Schools

Public schools in Calais3
Public schools in Calais, NCES directory 2023–2024
SchoolTypeGradesDistrict
Calais Elementary SchoolPublicPre-K–6Calais Public Schools
Calais Middle/High SchoolPublic7–12Calais Public Schools
St Croix Regional Technical CenterCareer and technicalNCalais Public Schools

Open public schools in the NCES directory for 2023–2024, placed by their listed location; private schools are not in the source. Enrollment and ratings are not shown.

Sources: NCES Common Core of Data, public school directory 2023–2024, retrieved November 14, 2026; NCES EDGE public school geocodes 2024–2025, retrieved November 14, 2026.

Legislative districts

Legislative districts for Calais3
Congressional and state legislative districts for Calais
ChamberDistrict
U.S. House of RepresentativesCongressional District 2 (ME-2)
State legislature, lower chamberState House District 9
State legislature, upper chamberState Senate District 6

Boundaries from the Census Bureau’s TIGER/Line district files, matched to Calais’s own boundary. Who holds each seat appears on the People page once the official records are approved.

Sources: Census cartographic boundaries 2025: congressional districts, 119th Congress, retrieved November 14, 2026; Census cartographic boundaries 2025: state legislative districts, upper chamber, state 23, retrieved November 14, 2026; Census cartographic boundaries 2025: state legislative districts, lower chamber, state 23, retrieved November 14, 2026.

Frequently asked about CalaisPromoted from questions people asked

No question about Calais has been asked often enough to publish an answer yet. Ask Calais and the answer, once a person checks it, appears here.

Nearby towns

Other towns in Washington County

All towns in Washington County