User:Closeapple/List of oldest high schools in the United States

This is a list of oldest high schools in the United States. To qualify, a high school should be the oldest in a state or in a county or settlement with more than one high school. This list is intended to be sortable to show specific years related to claims such as "oldest high school" or "oldest continuously operated public high school" in a place.

Special claims
Geographic qualifications are attached to some schools' claims.
 * West of the Allegheny Mountains
 * This includes, at minimum, all of that which is at the same latitudes as a conservative estimate of the Alleghenies, yet west of a broad estimate that includes the Allegheny Plateau: north-central Kentucky; western Ohio; all of Indiana; nearly all of Illinois; the southern latitudes of Iowa and Nebraska; the central and northern latitudes of Missouri, Kansas, Utah, and Colorado; and northern California.
 * A more liberal estimate would be that is west of the longitude of the Allegheny Mountains proper, regardless of latitude: this includes Ohio, western Pennsylvania, western West Virginia, all of Kentucky, Tennessee, Georgia, and anything west in longitude from those. Anything "west of the Mississippi River" is also west of the Alleghenies by this estimate.

Key

 * Location: City, Township, or County
 * St: State or territory
 * Type: school's current affiliation/organization type, for example Public, Magnet (if also public), religious denomination, religion if non-denominational, or Private
 * First start: first opening day for students attributed to this school
 * Last restart: newest re-establishment after being defunct
 * Last move: first students in major campus in oldest continuous use (can be before or after restarted)
 * Closed: final time school stopped operations when becoming defunct (blank if still in operation)
 * Claim: Claims made by school about longevity records (old = oldest; con = continuously operated; pub = public; loc = at same location); might not match actual history

All dates should be based on first classes for students when available, rather than when "organized" or otherwise conceived.

Schools still open
''Please give references for dates claimed. Claims without references may be considered bogus and removed without notice.''