How many letters does the top answer for “the southeastern region of the united states” have?

The most common answer is southeast (9 letters).

Crossword clue: the southeastern region of the united states

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

southeast 9 letters wn-def

to, toward, or in the southeast

the northeastern region of the united states 60% similar → northeast

the northwestern region of the united states 60% similar → northwest

the north central region of the united states 50% similar → midwest