Unified School District · ME
Calais
Calais is a unified school district in Maine with a community population of 3,097. The median household income is $64,096 and the median age is 43.8.
3,097
Population
90
People / sq mi
$64,096
Median Income
43.8
Median Age
Calais covers 34 sq mi of land at 90.2 people per square mile.
Race & Ethnicity
| White | 94.7% |
| Black or African American | 0.0% |
| Asian | 60.1% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$64,096
Median Household Income
$35,734
Per Capita Income
20.5%
Poverty Rate
3.3%
Unemployment
Housing
$111,100
Median Home Value
$1,010
Median Rent
73.4%
Homeownership
Education Attainment
88.0%
High School+
25.3%
Bachelor's+
Other Maine School Districts
Largest Cities in Maine
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Congressional Districts in Maine
State rankings
Frequently Asked Questions
Calais serves a community with a population of 3,097 according to the latest Census ACS 5-Year estimates. This unified school district is located in Maine.
The median household income in Calais is $64,096, with a per capita income of $35,734. The poverty rate is 20.5%.
Calais is 94.7% White, 0.0% Black or African American, 60.1% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Calais, 88.0% of adults have a high school diploma or higher, and 25.3% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Calais is $111,100, with a median rent of $1,010. The homeownership rate is 73.4%.
More from Maine
Data for Calais from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a unified school district (GEOID: 2303870).
For this entity, the underlying data on this page comes from the U.S. Census Bureau ACS and decennial files. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
Every number on this page links back to the U.S. Census Bureau ACS and decennial files; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. states, metros, cities, and ZIPs with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: U.S. Census Bureau ACS, 2026.