How many letters does the top answer for “city in northern state” have?

The most common answer is napata (6 letters).

Crossword clue: city in northern state

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

napata 6 letters wd-fact-v3

wadihalfa 9 letters wd-fact-v3

a city in northern illinois 50% similar → rockford

a city in northern italy 50% similar → ferrara

city in abia state 50% similar → umuahia

city in baroda state 50% similar → vadodara

city in bayelsa state 50% similar → yenegoa

city in bombay state 50% similar → surat

city in cauca state 50% similar → cali

city in delta state 50% similar → asaba, warri