[3] In the Nebraska license plate system, Loup County is represented by the prefix 88 (it had the eighty-eighth-largest number of vehicles registered in the county when the license plate system was established in 1922).

The terrain of Loup County consists of low corrugated flatland, sparsely used for agricultural purposes at present.

The North Loup River also runs southeastward through the lower center of the county, exiting eastward near the SE corner to run to its junction with the Calamus River at a point east of Loup County.

[5] As of the 2000 United States Census,[13] there were 632 people, 289 households, and 206 families in the county.

In only two national elections since 1900 has the county selected the Democratic Party candidate.