Indiana sits in the American Midwest, its borders traced by rivers, highways and straight survey lines. Knowing which neighbors touch the state is useful for travel, commerce and local history.
There are 4 states that border indiana, ranging from Illinois to Ohio. For each, you’ll find below Border direction,Border length (km),Major crossings (max 15 words).
States that Border Indiana
| State | Border direction | Border length (km) | Major crossings (max 15 words) |
|---|---|---|---|
| Michigan | N | 210.00 | I-94, US 12, rail lines |
| Ohio | E | 450.00 | I-70, I-74, US routes |
| Kentucky | S | 579.00 | Ohio River; I-65 and I-64 bridges |
| Illinois | W | 396.00 | Wabash River; I-70, US highways |
Descriptions
Michigan
Indiana’s northern neighbor, the land boundary touches counties near South Bend and Michigan City. Crossings include I-94, US 12 and rail lines. Notable for close Great Lakes ties and short, historically disputed boundary segments near the tri-state area.
Ohio
To the east, Ohio shares a long land boundary with Indiana crossed by I-70, I-74, numerous U.S. routes and rail corridors. Notable for heavy cross-border commuting, agricultural links, and intertwined economic and historical ties between eastern Indiana and western Ohio communities.
Kentucky
Indiana’s southern border follows the Ohio River, creating a river boundary with Kentucky. Major crossings include I-65 and I-64 bridges at Louisville and other river bridges. Notable for river commerce, jurisdictional quirks, and historic river towns like New Albany and Evansville.
Illinois
On the west, Indiana meets Illinois along land and river segments including the Wabash River. Crossings include I-70 and several U.S. highways and bridges. Notable for shared agricultural regions, river towns, and historical trade routes along the Wabash.
