US highway endpoints, photos, maps, and historyUS highways 20-29,
with branch routes
| Current highways |
2-digit "main" routes | 9 |
| 3-digit "branch" routes | 16 | |
| 3-digit numbering violations | 1 | |
| Total | 26 | |
| Historic highways |
2-digit "main" routes | 1 |
| 3-digit "branch" routes | 10 | |
| Probably never signed | 1 | |
| Total | 12 | |
| Grand Total | 38 | |
| For more information about these categories, or about the index below, please see the main index page. | ||
| Highway | North or east terminus | South or west terminus | Historic | Map |
|---|---|---|---|---|
| US 20 | Boston, MA | Newport, OR | 4 | Map |
| Lock Haven, PA | Ridgway, PA | 3 | ||
| Waverly, NY | Rockingham, NC | 5 | ||
| Shoshoni, WY | Riverton, WY | - | ||
| Deaver, WY | Cody, WY | - | ||
| US 21 | Wytheville, VA | Hunting Island, SC | 4 | Map |
| Wytheville, VA | Lexington, NC | - | ||
| Beckley, WV | Pound, VA | - | ||
| Lynchburg, VA | Perry, FL | 4 | ||
| (near Lenoir City, TN) | Hardeeville, SC | 4 | ||
| Michigan City, IN | Fort Fisher, NC | 4 | ||
| Charlotte, NC | Georgetown, SC | 3 | ||
| US 22 | Newark, NJ | Cincinnati, OH | 3 | Map |
| Whitehouse, NJ | Wilmington, DE | 1 | ||
| Northumberland, PA | Oxford, PA | 1 | ||
| Dorneyville, PA | Conowingo, MD | 6 | ||
| Atlantic City, NJ | Cleveland, OH | 1 | ||
US 422 (eastern segment) |
King of Prussia, PA | (near Hershey, PA) | 6 | |
US 422 (western segment) |
Ebensburg, PA | Cleveland, OH | 3 | |
| Selinsgrove, PA | (near Powhatan, VA) | 3 | ||
US 622 |
Mount Union, PA | Hancock, MD | - | |
| US 23 | Mackinaw City, MI | Jacksonville, FL | 4 | Map |
| Jenkins, KY | Pineville, KY | - | ||
| Greenville, SC | (near Toccoa, GA) | 2 | ||
| Somerset, MI | Sylvania, OH | 2 | ||
| US 24 | Clarkston, MI | Minturn, CO | 5 | Map |
| Peoria, IL | (near Biggsville, IL) | 1 | ||
| New Castle, PA | Huntington, IN | 6 | ||
| US 25 | Cincinnati, OH | Brunswick, GA | 4 | Map |
| Pine Bluff, AR | Natchez, MS | 2 | Map | |
| US 26 | Ogallala, NE | (near Cannon Beach, OR) | 6 | Map |
| Prineville, OR | Eugene, OR | 1 | ||
| US 27 | Ft. Wayne, IN | Miami, FL | 7 | Map |
| (near Grayling, MI) | Chattanooga, TN | 4 | ||
| Carrollton, KY | Richmond, KY | 2 | ||
| US 28 | Ontario, OR | Florence, OR | 1 | Map |
| US 29 | Mt. Hebron, MD | Pensacola, FL | 6 | Map |
| Knoxville, TN | Chiefland, FL | 6 |
The legend for this chart is on the index page.