[2] Eureka County is part of the Elko Micropolitan Statistical Area.

It was named for the ancient Greek term, Eureka, meaning, "I have found it.

[4] The county's highest point is the 10,631 ft (3,240 m) summit of Diamond Peak in the Diamond Mountains along the border with White Pine County.

[5] At the 2000 census there were 1,651 people, 666 households, and 440 families living in the county.

At the 2010 census, there were 1,987 people, 836 households, and 495 families living in the county.

[12] In terms of ancestry, 43.3% were American, 14.8% were German, 11.4% were Irish, 7.3% were English, and 6.9% were Italian.

Background Eureka County is strongly Republican; the last time they voted for a Democratic candidate was in 1964, and the last time a Democratic candidate received a quarter of the county's vote was in 1988.

However, due to the county's low population, its heavy Republican voting does not have a large effect on elections in the state, as a majority of Nevada's population live in Democratic-leaning Clark County and Washoe County.