Lake City Bank BanksLeadership Fort Wayne Alumni Lake City Bank Visit Website 302 E. Dupont Road Fort Wayne, IN 46825 (260) 490-1374 (260) 490-8144 (fax) About About Lake City Bank, a $5.0 billion bank headquartered in Warsaw, Indiana, is the fifth largest bank headquartered in the state, and the largest bank 100% invested in Indiana. Visit us at lakecitybank.com.