1850 Counties of  Indiana

    in area Courts held at Pop in 1850
Adams Co, IN east side near Wabash & Mt Mary's rivers 336 sq miles Decatur 5,797
Allen Co, IN northeast part, water by St Joseph & St Mary's rivers, they form Maumee & Wabash rivers to Erie Canal 650 sq miles Fort Wayne 16,920
Bartholomew Co, IN in southeasternly part, crossed by Driftwood fork of White river 480 sq miles Columbia 5.763
Benton Co, IN in western part 520 sq miles Oxford 1,144
Blackford Co, IN NE part, water by Salamanic river 182 sq miles Blackford 2,860
Boone Co, IN central part 408 sq miles Lebanon 11,631
Brown Co, IN southern part 310 sq miles Nashville 4,846
Carroll Co, IN towards northwest part, crossed by Wabash river 380 Delphi 11,015
Cass Co, IN north part, crossed by Wabash river 415 Logansport 10,998
Clarke Co, IN southeast boundary, on northwest side of Ohio river 400 Charleston 15,828
Clay Co, IN western part 360 Bowling Green 7,947
Clinton Co, IN central part 432 Frankfort 11,869
Crawford Co, IN southern part 300 Fredonia 6,356
Davies Co, IN southwest part, between forks of White river 420 Washington 10,354
Dearborn Co, IN eastern boundary, northwest side of Ohio river 380 Lawrenceville 20,168
Decatur Co, IN southeast part 340 Greensburgh 15,107
De Kalb Co, IN east boundary, crossed by St Joseph's river 365 Auburn 8,251
Delaware Co, IN eastern part 384 Muncietown 10,843