[1] Napa Junction is located on the California Northern Railroad (formerly the Southern Pacific Railroad), 7.5 miles (12.1 km) south-southeast of Napa.

[2] The junction has connected the railroads of the California Coast Ranges north of San Francisco Bay to the national rail network since completion of the Santa Rosa and Carquinez Railroad in 1888.

[citation needed] The Adelante post office functioned from 1869 to 1871.

[2] Part of Napa Junction has been annexed to and incorporated in American Canyon.

This Napa County, California-related article is a stub.