Unified School District · ME
Castine
Castine is a unified school district in Maine with a community population of 1,362. The median household income is $113,750 and the median age is 21.2.
1,362
Population
175
People / sq mi
$113,750
Median Income
21.2
Median Age
Castine covers 8 sq mi of land at 175.2 people per square mile.
Race & Ethnicity
| White | 86.0% |
| Black or African American | 0.0% |
| Asian | 63.5% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$113,750
Median Household Income
$39,304
Per Capita Income
9.8%
Poverty Rate
1.4%
Unemployment
Housing
$603,500
Median Home Value
$1,105
Median Rent
80.4%
Homeownership
Education Attainment
99.8%
High School+
74.5%
Bachelor's+
Other Maine School Districts
Largest Cities in Maine
Largest Counties in Maine
Congressional Districts in Maine
State rankings
Frequently Asked Questions
Castine serves a community with a population of 1,362 according to the latest Census ACS 5-Year estimates. This unified school district is located in Maine.
The median household income in Castine is $113,750, with a per capita income of $39,304. The poverty rate is 9.8%.
Castine is 86.0% White, 0.0% Black or African American, 63.5% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Castine, 99.8% of adults have a high school diploma or higher, and 74.5% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Castine is $603,500, with a median rent of $1,105. The homeownership rate is 80.4%.
More from Maine
Data for Castine from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a unified school district (GEOID: 2304080).
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.
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.