Indiana county map Nov 15, 2023 ยท Map of Indiana county boundaries and county seats. = changed Ad - Adams Al - Allen Ba - Bartholomew Be - Benton Bl - Blackford Bo - Boone Br - Brown Car - Carroll Cas - Cass Cli - Clinton Clk - Clark Cly - Clay: Cr - Crawford Da - Daviess Dea - Dearborn Indiana Map Legend. And Lake Michigan gives the northwest corner a beachy vibe. Indiana's code is 18, which when combined with any county code would be written as 18XXX. Counties are listed in alphabetical order. Download data using Hub's expanded search capabilities. INDOT distributed remaining maps until the supply was exhausted. Rivers cut through the landscape creating some county boundary lines. In terms of area, Allen County is the largest with a size of about 660 square miles. Indiana benefits from an engaged, enthusiastic, and cooperative community of GIS practitioners working in all parts of the state. wsyjlroltehgqwgxxojpeontbdxxpteorarqxkwmyurlclgtfuqocpbfizfouytafndvx