The following is an incomplete list of county-maintained roads in Le Sueur County, Minnesota, United States.

Le Sueur Avenue (Rice County Road 12) becomes Le Sueur County Road 1, heads north for 1 mile (1.6 km), and terminates at Dodd Road (CR 2).

County Road 2 runs west as a continuation of Dodd Road (Rice County Road 10), through Kilkenny, and after crossing State Highway 13 (MN 13), continues west on 440th Street.

At 201st Avenue, County Road 2 heads north on 201st Avenue, until it becomes Dodd Road, briefly runs concurrently with County Road 11, then heads west-southwest to Cleveland, where it terminates at 10th Street South (CR 15).

County Road 3 runs north as a continuation of Waseca County Road 24 on 153rd Avenue, and enters Waterville and the southern segment terminates at the intersection of South Reed Street and Paquin Street West (CR 14) in the center of the community.

The northern segment of County Road 3 begins at the northeastern edge of Waterville, at the intersection of Waterville Road with State Highway 13 (MN 13), heads north along Waterville Road and 151st Avenue, through Kilkenny, continues north on Kilkenny Road and 151st Avenue, then on 9th Street Southeast into Montgomery.

County Road 5 runs from Cordova north to Clear Lake.

County Road 6 runs from State Highway 60 (MN 60) and heads north for 1.5 miles (2.4 km) on 175th Avenue, terminating at Ridge Road (CR 14) County Road 7 runs from Cordova south to County Road 12.

It runs from Elysian north to Le Center and to State Highway 19 (MN 19).

County Road 12 runs from County Road 13 southeast to State Highway 13 (MN 13) just above Waterville.

County Road 14 runs from Elysian to Waterville.

It run east to County Road 13.

County Road 20 runs from 281st Avenue (CR 15) westward on 410th Street, and terminates 4.7 miles (7.6 km) at the intersection of it with Ottawa Road (CR 23).

County Road 21 runs from State Highway 99 (MN 99) through Kasota to Blue Earth County.

County Road 22 runs along the former alignment of MN 112 through Le Sueur from US 169 to MN 99 near Le Center.

County Road 23 runs from County Road 22 through Ottawa and ends at State Highway 99 (MN 99).

County Road 31 runs from County Road 28 to State Highway 19 (MN 19) at Union Hill.

County Road 39 only runs in Le Center.

County Road 40 only runs in Le Center.

County Road 41 only runs in Kasota.

County Road 42 only runs in Kasota.

County Road 43 only runs in Kasota.

County Road 46 only runs Cleveland.

County Road 50 only runs in Elysian.

County Road 56 only runs in Montgomery.

County Road 57 only runs in Montgomery.

County Road 58 only runs in New Prague.

County Road 102 runs from State Highway 99 (MN 99) to State Highway 22 (MN 22) at Kasota.

County Road 116 runs from Le Sueur and ends 6.8 miles to the east.

County Road 136 runs from State Highway 13 to Lake Volney.