Interstate 29 in Missouri

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Interstate 29
I-29 highlighted in red
Route information
Maintained by MoDOT
Length	128.710 mi[1] (207.139 km)
Existed	1963–present
NHS	Entire route
Major junctions
South end	Downtown Loop (Kansas City)
Major intersections	I-35 in Kansas City US 169 in Kansas City I-635 / US 69 in Kansas City I-435 in Kansas City I-229 in St. Joseph US 36 in St. Joseph I-229 / US 59 / US 71 near Savannah US 136 near Rock Port
North end	I-29 at Iowa state line
Location
Country	United States
State	Missouri
Counties	Jackson, Clay, Platte, Buchanan, Andrew, Holt, Atchison
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future Missouri State Highway System Interstate US State Supplemental
← Route 28 → Route 30

Interstate 29 (I-29) is a north–south Interstate Highway in the Midwestern United States that begins in Missouri. It travels through the Kansas City and St. Joseph metropolitan areas before exiting the state and entering Iowa. Almost all of I-29 in Missouri lies in an area called the Platte Purchase that was not originally part of Missouri when the state entered the Union in 1821.