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School Administrative District 40, Maine

School Administrative District 40 is a unified school district in Knox County and Lincoln County, Maine, for grades K–12. About 15,685 people live in it (2020–2024 estimate). It covers 202 sq mi (524 km²) of land.

PortlandLewistonBangor
School Administrative District 40 in Maine
BristolJeffersonNobleboroRegional School Unit 12Regional School Unit 13St. George Public SchoolsLincoln Unorganized Territory
School Administrative District 40 and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
15,685 ± 312
Grades
K–12
Type
Unified school district
Counties
Knox County66% of the district’s landLincoln County34% of the district’s land
Land area
202 sq mi (524 km²)
Median household income
$72,292 ± $6,038
Median home value
$249,400 ± $17,748
Water area
30.4 sq mi (78.7 km²)
State
Maine
Census code (GEOID)
2311550
Coordinates (central point)
44.136319, -69.330680
Check a point in the school district finder

These coordinates mark a central point for the district, not a school or an address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.

Towns, townships and communities in School Administrative District 40, largest first

  1. Town of Waldoboro5,253 people
  2. Town of Warren4,932 people
  3. Town of Union2,663 people
  4. Town of Washington1,624 people
  5. Waldoboro (CDP)1,459 people
  6. Town of Friendship1,213 people

A town, township, city or borough is listed when at least half its land is in the district; a community, when its central point is. Near a district line, an address can belong to the district next door.

Bordering unified school districts, nearest first

  1. Nobleboro7.9 mi west
  2. Jefferson9.4 mi west
  3. Regional School Unit 1311 mi southeast
  4. Lincoln Unorganized Territory14 mi north
  5. Regional School Unit 1214 mi northwest
  6. Louds Island Unorganized Territory16 mi south
  7. St. George Public Schools16 mi south
  8. Bristol19 mi southwest
  9. School Administrative District 0329 mi north

These share a boundary with School Administrative District 40. Distances are straight lines between central points.

Before using this answer for enrollment

A district boundary doesn’t decide which school a student attends; the district’s attendance zones and rules do. Confirm the full address and grade with School Administrative District 40 before you rely on it.

See its schools and enrollment on NCES ↗

Find the school district where you are now or find your town or township.