State Highway 104 (SH 104) is a proposed state highway which will run from Farm to Market Road 106 (FM 106) and Park Road 100 (PR 100) in South Padre Island in Cameron County, Texas, United States.

[2] A previous route numbered SH 104 was designated on May 25, 1925, as a connector route from Ranger to Morton Valley.

On May 28, 1932, the route was extended west to reach Liberty Hill,[4] and it was completed by 1936.

[5] SH 104 was designated on December 12, 2023 on its proposed route.

[citation needed] Media related to Texas State Highway 104 at Wikimedia Commons