Unified School District · ME
School Administrative District 40
School Administrative District 40 is a unified school district in Maine with a community population of 15,685. The median household income is $72,292 and the median age is 45.2.
15,685
Population
78
People / sq mi
$72,292
Median Income
45.2
Median Age
School Administrative District 40 covers 202 sq mi of land at 77.5 people per square mile.
Race & Ethnicity
| White | 92.4% |
| Black or African American | 0.0% |
| Asian | 67.6% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$72,292
Median Household Income
$40,725
Per Capita Income
4.0%
Poverty Rate
0.7%
Unemployment
Housing
$249,400
Median Home Value
$904
Median Rent
83.0%
Homeownership
Education Attainment
94.5%
High School+
27.3%
Bachelor's+
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Frequently Asked Questions
School Administrative District 40 serves a community with a population of 15,685 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 40 is $72,292, with a per capita income of $40,725. The poverty rate is 4.0%.
School Administrative District 40 is 92.4% White, 0.0% Black or African American, 67.6% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In School Administrative District 40, 94.5% of adults have a high school diploma or higher, and 27.3% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in School Administrative District 40 is $249,400, with a median rent of $904. The homeownership rate is 83.0%.
More from Maine
Data for School Administrative District 40 from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a unified school district (GEOID: 2311550).
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.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. states, metros, cities, and ZIPs. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: U.S. Census Bureau ACS, 2026.