How many letters does the top answer for “a town in northern mexico on the border of arizona” have?

The most common answer is nogales (7 letters).

Crossword clue: a town in northern mexico on the border of arizona

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

nogales 7 letters wn-def

a town in northern Mexico on the border of Arizona