[3][4] Dixon County is part of the Sioux City, IA–NE–SD Metropolitan Statistical Area.

In the Nebraska license plate system, Dixon County is represented by the prefix 35 (it had the 35th-largest number of vehicles registered in the county when the license plate system was established in 1922).

[6] Dixon County lies at the northeast edge of the state.

[7] As of the 2000 United States Census,[16] there were 6,339 people, 2,413 households, and 1,705 families in the county.

25.90% of all households were made up of individuals, and 14.40% had someone living alone who was 65 years of age or older.

Dixon County voters have been reliably Republican for decades.