How many letters does the top answer for “a person from costa rica” have?

The most common answer is costarican (10 letters).

Crossword clue: a person from costa rica

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

costarican 10 letters wd-fact-v3

costaricans 11 letters wd-fact-v3

capital of costa rica 50% similar → sanjose

city in costa rica 50% similar → alajuela, cartago, heredia

dish from costa rica 50% similar → casado, ropavieja

island in costa rica 50% similar → canoisland, chira, cocoisland

lake in costa rica 50% similar → lagocote, lakearenal

mountain in costa rica 50% similar → arenalvolcano, barvavolcano, cerrochirripo