Johnson County, Nebraska

Johnson County is a located in the  of. As of, the population is 4,488. Its is.

In the Nebraska system, Johnson County is represented by the prefix 57 (it had the fifty-seventh-largest number of vehicles registered in the county when the license plate system was established in ).

Geography
According to the, the county has a total area of 976 (377 ). 974 km² (376 sq mi) of it is land and 2 km² (1 sq mi) of it (0.18%) is water.

Adjacent Counties

 * - north
 * - east
 * - south
 * - west
 * - northwest corner

Demographics
As of the of 2000, there were 4,488 people, 1,887 households, and 1,254 families residing in the county. The was 5/km² (12/sq mi). There were 2,116 housing units at an average density of 2/km² (6/sq mi). The racial makeup of the county was 93.54%, 0.11% or , 0.40% , 2.67% , 0.02% , 1.96% from , and 1.29% from two or more races. 2.87% of the population were or  of any race.

There were 1,887 households out of which 29.60% had children under the age of 18 living with them, 58.10% were living together, 5.50% had a female householder with no husband present, and 33.50% were non-families. 29.90% of all households were made up of individuals and 17.70% had someone living alone who was 65 years of age or older. The average household size was 2.35 and the average family size was 2.92.

In the county the population was spread out with 24.20% under the age of 18, 5.70% from 18 to 24, 24.40% from 25 to 44, 23.60% from 45 to 64, and 22.00% who were 65 years of age or older. The median age was 42 years. For every 100 females there were 91.90 males. For every 100 females age 18 and over, there were 90.80 males.

The median income for a household in the county was $32,460, and the median income for a family was $41,000. Males had a median income of $26,282 versus $20,799 for females. The for the county was $16,437. About 6.70% of families and 8.90% of the population were below the, including 10.50% of those under age 18 and 11.10% of those age 65 or over.