How many letters does the top answer for “a province of southern china” have?

The most common answer is yunnan (6 letters).

Crossword clue: a province of southern china

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

yunnan 6 letters wn-def

a province of southern China

a province in southern china 100% similar → guangdong

bridge in southern province 50% similar → kazungulabridge

city in southern province 50% similar → galle, nyanza