[2] In the Nebraska license plate system, Hitchcock County is represented by the prefix 67 (it had the sixty-seventh-largest number of vehicles registered in the county when the license plate system was established in 1922).

[4] The Massacre Canyon battle between Sioux and Pawnee took place on August 5, 1873, at a spot three miles east of Trenton.

The terrain of Hitchcock County consists of rolling low hills.

The flattened hilltops are used for agriculture; mostly dry farming with some center pivot irrigation.

The Republican River flows eastward through the central part of the county.

Since 1900, the county has failed to back the Republican candidate in only five presidential elections, most recently in 1936 in the midst of Franklin D. Roosevelt's national landslide victory.