McPherson County is a county in the U.S. state of Nebraska. As of the 2020 census, the population was 399, and was estimated to be 376 in 2024, making it the least populous county in Nebraska and the fifth-least populous county in the United States. The county seat and the largest city is Tryon.
McPherson County is part of the North Platte micropolitan area.
In the Nebraska license plate system, McPherson County was represented by the prefix "90" (as it had the 90th-largest number of vehicles registered in the state when the license plate system was established in 1922).
McPherson county was formed on March 31, 1887 from Logan County; it was named for American Civil War General James B. McPherson.
In 1913, a portion of McPherson County was partitioned off to create Arthur County, giving McPherson County its present boundaries.
According to the United States Census Bureau, the county has a total area of , of which is land and (0.12%) is water. It is the 23rd-largest county in Nebraska by total area.
The terrain of McPherson County consists of low rolling hills sloping to the south-southeast. A small portion of the area is under center pivot irrigation.
Most of Nebraska's 93 counties (the eastern 2/3, including McPherson County) observe Central Time; the western counties observe Mountain Time. McPherson County is the westernmost of the Nebraska counties to observe Central Time.
As of the 2020 census, the county had a population of 399. The median age was 48.8 years. 19.0% of residents were under the age of 18 and 22.3% of residents were 65 years of age or older. For every 100 females there were 102.5 males, and for every 100 females age 18 and over there were 94.6 males age 18 and over.
The racial makeup of the county was 94.7% White, 0.0% Black or African American, 1.0% American Indian and Alaska Native, 0.5% Asian, 0.0% Native Hawaiian and Pacific Islander, 0.3% from some other race, and 3.5% from two or more races. Hispanic or Latino residents of any race comprised 0.8% of the population.
0.0% of residents lived in urban areas, while 100.0% lived in rural areas.
There were 168 households in the county, of which 25.0% had children under the age of 18 living with them and 17.3% had a female householder with no spouse or partner present. About 23.8% of all households were made up of individuals and 11.9% had someone living alone who was 65 years of age or older.
There were 232 housing units, of which 27.6% were vacant. Among occupied housing units, 72.0% were owner-occupied and 28.0% were renter-occupied. The homeowner vacancy rate was 1.6% and the rental vacancy rate was 9.4%.
As of the 2000 census, there were 533 people, 202 households, and 157 families in the county. The population density was . There were 283 housing units at an average density of . The racial makeup of the county was 97.94% White, 0.38% Asian, 1.69% from other races. 1.50% of the population were Hispanic or Latino of any race. 44.4% were of German, 14.4% American, 9.2% Irish, 8.7% Swedish and 6.3% English ancestry.
There were 202 households, out of which 34.20% had children under the age of 18 living with them, 73.80% were married couples living together, 3.50% had a female householder with no husband present, and 21.80% were non-families. 19.80% of all households were made up of individuals, and 14.40% had someone living alone who was 65 years of age or older. The average household size was 2.64 and the average family size was 3.01.
The county population contained 27.60% under the age of 18, 5.30% from 18 to 24, 26.10% from 25 to 44, 22.90% from 45 to 64, and 18.20% who were 65 years of age or older. The median age was 41 years. For every 100 females, there were 99.60 males. For every 100 females age 18 and over, there were 97.90 males.
The median income for a household in the county was $25,750, and the median income for a family was $31,250. Males had a median income of $25,192 versus $13,393 for females. The per capita income for the county was $13,055. 16.20% of the population and 14.00% of families were below the poverty line. Out of the total people living in poverty, 21.70% are under the age of 18 and 17.30% are 65 or older.
McPherson County voters have been strongly Republican since the beginning. In only two national elections since 1900 has the county selected the Democratic Party candidate (as of 2024). In 2016, Democrat Hillary Clinton had the worst showing for a major party Presidential candidate in the county's history, tallying just 14 votes for only 4.9%. She had accumulated fewer votes than any third-party or write-in votes, making it the only county in Nebraska for this to happen. In 2024, Democrat Kamala Harris performed even worse than Clinton, receiving only 12 votes or 4.2%.