How many letters does the top answer for “a town in northeastern oklahoma” have?

The most common answer is bartlesville (12 letters).

Crossword clue: a town in northeastern oklahoma

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

bartlesville 12 letters wn-def

a town in northeastern Oklahoma

a town in southeastern oklahoma 50% similar → mcalester

a town in southwest oklahoma 50% similar → lawton