US highways 1-9, with branch routes
3-digit "branch" routes are listed under their 2-digit "main" route. Highways shown in italics have been decommissioned.
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(US 0 has never existed)
US 4 US 5
US 6 US 7
US 8
US 9
- US 400 (actually an anomalous number, not a branch of "US 0")
- US 101 (actually an anomalous number, not a branch of US 1)
- US 201
- US 301
- US 401 [i] (original)
- US 401 [ii] (second)
- US 401 [iii] (current)
- US 501
- US 601
- US 701
US 4 US 5
US 6 US 7
US 8
US 9
Page originally created 1998;
last updated Apr. 1, 2025.
last updated Apr. 1, 2025.
