[2] In the Nebraska license plate system, Dundy County is represented by the prefix 76 (it had the seventy-sixth-largest number of vehicles registered in the county when the license plate system was established in 1922).

[7] Dundy County lies at the lower SW corner of Nebraska.

[8] As of the 2000 United States Census,[15] there were 2,292 people, 961 households, and 637 families in the county.

The racial makeup of the county was 96.95% White, 0.04% Black or African American, 0.79% Native American, 0.48% Asian, 0.04% Pacific Islander, 0.87% from other races, and 0.83% from two or more races.

30.90% of all households were made up of individuals, and 17.60% had someone living alone who was 65 years of age or older.

In only three national elections since 1900 has the county selected the Democratic Party candidate (as of 2024).