According to the U.S. Census Bureau, the county has an area of, of which is land and is covered by water. The terrain is generally undulating. The county is intersected by the Boone and Iowa Rivers
The 2010 census recorded a population of 13,229 in the county, with a population density of. There were 6,529 housing units, of which 5,625 were occupied.
2000 census
As of the census of 2000, there were 14,334 people, 5,940 households, and 3,938 families residing in the county. The population density was 25 people per square mile. There were 6,559 housing units at an average density of 11 per square mile. The racial makeup of the county was 95.93% White, 0.17% Black or African American, 0.18% Native American, 0.20% Asian, 2.90% from other races, and 0.63% from two or more races. 4.93% of the population were Hispanic or Latino of any race. There were 5,940 households out of which 28.40% had children under the age of 18 living with them, 57.30% were married couplesliving together, 6.20% had a female householder with no husband present, and 33.70% were non-families. 30.20% of all households were made up of individuals and 16.30% had someone living alone who was 65 years of age or older. The average household size was 2.36 and the average family size was 2.92. In the county, the population was spread out with 24.50% under the age of 18, 6.50% from 18 to 24, 24.50% from 25 to 44, 23.30% from 45 to 64, and 21.20% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 96.20 males. For every 100 females age 18 and over, there were 92.30 males. The median income for a household in the county was $36,197, and the median income for a family was $44,043. Males had a median income of $29,398 versus $21,222 for females. The per capita income for the county was $18,247. About 4.20% of families and 7.00% of the population were below the poverty line, including 7.70% of those under age 18 and 6.40% of those age 65 or over.
Education
Primary and secondary
There are three school districts in Wright County with three high schools: K-12 Enrollment 954 K-12 Enrollment 836 K-12 Enrollment 793
Several small newspapers are published in Wright County, including the Wright County Monitor, serving Clarion and Dows, the Eagle Grove Eagle, and the Belmond Independent.
Wright County Fair
The first Wright County Fair was held in Clarion. The old fairgrounds were located where Clarion's USA Healthcare Center stands today. the Clarion Fair ran until 1924; it was held in Goldfield in 1925, and moved to its present location in Eagle Grove in 1926; it was later retitled as the Wright County District Junior Fair. Entries are open to children in Hamilton, Humboldt, Webster, Hardin, Franklin, and Wright Counties.