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| Highway names | |
|---|---|
| Interstates | Interstate X (I-X) |
| US Highways | U.S. Highway X (US X) |
| State | Trunk Highway X (MN X or TH X) |
| County State-Aid Highways: | County State-Aid Highway X (CSAH X) |
| County Roads: | County Road X (CR X) |
| System links | |
The following is a list of county-maintained roads in Houston County, Minnesota, United States. Some of the routes included in this list are also county-state-aid-highways (CSAH.)
| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Local names | Formed | Removed | Notes |
|---|---|---|---|---|---|---|---|---|
 CSAH 1 | — | — | Beaver Creek Valley State Park entrance in Caledonia Township | MN 76 in Caledonia | — | — | ||
 CSAH 2 | — | — | MN 76 in Eitzen | Iowa State line (County A11) | — | — | Western Segment | |
| CSAH 2 | — | — | Iowa State line (County A11) | Iowa State line (County A11) | — | — | Eastern Segment | |
 CSAH 3 | — | — | MN 44 and MN 76 in Caledonia | MN 26 in Brownsville | — | — | ||
 CSAH 4 | — | — | Iowa State line (128th Avenue) | MN 76 in Sheldon Township | — | — | ||
 CSAH 5 | — | — | Iowa State line (Winnebago Road) | CSAH 3 in Caledonia | — | — | ||
 CSAH 6 | — | — | Winona County line (County 5) | US 14, US 61, and MN 16 in La Crescent | — | — | ||
 CSAH 7 | — | — | MN 16 in Hokah | MN 26 in Hokah Township | — | — | ||
 CSAH 8 | — | — | Iowa State line (County W38) | Fillmore County line (County 29) | — | — | Southern Segment | |
| CSAH 8 | — | — | Fillmore County line (County 29) | Fillmore County line (County 29) | — | — | Northern Segment | |
 CSAH 9 | — | — | MN 76 in Houston Township | Winona County line (County 11) | — | — | ||
 CSAH 10 | — | — | MN 76 in Sheldon Township | MN 76 in Sheldon Township | — | — | ||
 CSAH 11 | — | — | CSAH 4 in Black Hammer Township | CSAH 10 in Sheldon Township | — | — | ||
 CSAH 12 | — | — | CSAH 11 in Black Hammer Township | MN 44 and MN 76 in Caledonia | — | — | ||
 CSAH 13 | — | — | Fillmore County line (County 10) | MN 16 and MN 76 in Houston | — | — | ||
 CSAH 14 | — | — | CSAH 5 in Mayville Township | MN 26 in Jefferson Township | — | — | ||
 CSAH 15 | — | — | Fillmore County line (County 13) | CSAH 4 in Yucatan Township | — | — | ||
 CSAH 16 | — | — | Iowa State line (County A16) | MN 44 in Spring Grove | — | — | ||
 CSAH 17 | — | — | MN 44 in Wilmington Township | MN 76 in Wilmington Township | — | — | ||
 CSAH 18 | — | — | CSAH 3 in Brownsville | MN 44 in Hokah | — | — | ||
 CSAH 19 | — | — | Fillmore County line (County 18) | CSAH 4 in Black Hammer Township | — | — | ||
 CSAH 20 | — | — | MN 76 in Sheldon Township | MN 44 in Union Township | — | — | ||
 CSAH 21 | — | — | CSAH 9 in Black Hammer Township | MN 16 in La Crescent Township | — | — | ||
 CSAH 22 | — | — | MN 76 in Sheldon Township | MN 16 in Houston Township | — | — | ||
 CSAH 23 | — | — | CSAH 2 in Eitzen | CSAH 5 in Winnebago Township | — | — | ||
 CSAH 24 | — | — | CR 249 in Crooked Creek Township | CSAH 3 in Brownsville Township | — | — | ||
 CSAH 25 | — | — | MN 16 in Mound Prairie Township | CSAH 6 in La Crescent | — | — | ||
 CSAH 26 | — | — | Fillmore County line (County 27) | Winona County line (County 13) | — | — | ||
 CSAH 27 | — | — | MN 44 in Spring Grove | MN 76 in Winnebago Township | — | — | ||
 CSAH 28 | — | — | CSAH 17 in Wilmington Township | MN 44 in Caledonia Township | — | — | ||
 CSAH 29 | — | — | CSAH 6 in La Crescent | Winona County line (County 1) | — | — | ||
 CSAH 30 | — | — | CSAH 6 in La Crescent Township | Winona County line (County 16) | — | — | ||
 CSAH 31 | — | — | CSAH 2 in Jefferson Township | CSAH 5 in Winnebago Township | — | — | ||
 CSAH 32 | — | — | CSAH 3 in MayvilleTownship | CR 249 in Mayville Township | — | — | ||
 CSAH 33 | — | — | CSAH 8 in Spring Grove Township | MN 44 in Spring Grove Township | — | — | ||
 CR 249 | — | — | CSAH 5 in Black Hammer Township | MN 26 in Crooked Creek Township | — | — | ||