Unified School District · ME
School Administrative District 31
School Administrative District 31 is a unified school district in Maine with a community population of 3,461. The median household income is $59,223 and the median age is 49.6.
3,461
Population
25
People / sq mi
$59,223
Median Income
49.6
Median Age
School Administrative District 31 covers 140 sq mi of land at 24.8 people per square mile.
Race & Ethnicity
| White | 95.2% |
| Black or African American | 0.0% |
| Asian | 56.8% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$59,223
Median Household Income
$28,006
Per Capita Income
6.8%
Poverty Rate
2.0%
Unemployment
Housing
$159,600
Median Home Value
$746
Median Rent
88.6%
Homeownership
Education Attainment
93.0%
High School+
18.3%
Bachelor's+
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State rankings
Frequently Asked Questions
School Administrative District 31 serves a community with a population of 3,461 according to the latest Census ACS 5-Year estimates. This unified school district is located in Maine.
The median household income in School Administrative District 31 is $59,223, with a per capita income of $28,006. The poverty rate is 6.8%.
School Administrative District 31 is 95.2% White, 0.0% Black or African American, 56.8% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In School Administrative District 31, 93.0% of adults have a high school diploma or higher, and 18.3% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in School Administrative District 31 is $159,600, with a median rent of $746. The homeownership rate is 88.6%.
More from Maine
Data for School Administrative District 31 from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a unified school district (GEOID: 2311250).
this entity is one of the data points covered by this site’s U.S. population demographics dataset. The detail above comes directly from the U.S. Census Bureau ACS and decennial files; the context that follows situates the headline numbers against the broader distribution across U.S. states, metros, cities, and ZIPs.
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.