[3][4] Platte County comprises the Columbus, NE Micropolitan Statistical Area.

In the Nebraska license plate system, Platte County is represented by the prefix 10 (it had the 10th-largest number of vehicles registered in the state when the license plate system was established in 1922).

Platte County was officially established in 1856 and the board of commissioners had its first meeting the following year.

The Platte County terrain consists of low rolling hills, largely devoted to agriculture, sloping to the east-southeast.

[10] As of the 2000 United States Census,[17] there were 31,662 people, 12,076 households, and 8,465 families in the county.

25.90% of all households were made up of individuals, and 11.40% had someone living alone who was 65 years of age or older.