Horizon Bank, First Citizens Branch Basic Info Reviews Routing Numbers Map & Direction Name: Horizon Bank, First Citizens Branch Main Office: No Service: Limited Service Facility Office Location: 502 Franklin Street Michigan City, Indiana 46360 La Porte County View other branches Phone: 219-873-2640 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071201320YY071911704YY072413625YY072414132YY074906428YY074914067YY271274115YN271274241YY272471658YN274970050YY From: To: