The roadway then turns slightly northeast and begins to parallel a Kyle Railroad track.

K-204 continues along the railroad for a short distance before curving north and entering Smith Center.

It continues a short distance through the city before reaching its eastern terminus at US-281, also known as Main Street.

[11] In a resolution passed on October 10, 1951, it was approved to build a new alignment of US-36 from Smith Center westward.

[12] At the end of December 1951, the Kansas State Highway Commission (SHC), now known as KDOT, asked for bids to build a new alignment of US-36 from Smith Center west for 8.4 miles (13.5 km).