Voltage is an unincorporated community in Harney County, Oregon, United States.

[3] At one time, Voltage had a store and school district; today, however, there is little evidence of a once-thriving community.

[4][5][6] Voltage is about 3 miles (5 km) east of the former community of Sodhouse, near the present-day headquarters of the Malheur National Wildlife Refuge.

[3] It was originally the site of a sod house built by a group of local settlers around 1872.

[3][7] As of 1978, nothing remained of the sod house but a low rock wall; in 1937 the CCC erected a historic marker at the site.