Greene County, Iowa

Greene County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 8,771.^[2] The county seat is Jefferson.^[3] The county is named in honor of General Nathanael Greene.^[4]

Greene County was formed on January 15, 1851, and from 1854, self-governed. It was named after General Nathanael Greene, a hero in the Revolutionary War.^[5] The first European settler was Truman Davis. He settled on the Raccoon River. The first courthouse was built in 1856 from wood. Previously, court was held in a log cabin southeast of Jefferson. The second courthouse, of red brick, was built in 1870. The present Greene County Courthouse used today was built in 1917.

According to the U.S. Census Bureau, the county has a total area of 571 square miles (1,480 km²), of which 570 square miles (1,500 km²) is land and 1.6 square miles (4.1 km²) (0.3%) is water.^[6]

• U.S. Highway 30
• Iowa Highway 4
• Iowa Highway 25
• Iowa Highway 144

• Calhoun County (northwest)
• Webster County (northeast)
• Boone County (east)
• Dallas County (southeast)
• Guthrie County (south)
• Carroll County (west)

As of the 2020 census, the county had a population of 8,771 and a population density of 15.3/sq mi (5.9/km²). There were 4,309 housing units, of which 3,802 were occupied; 11.8% of units were vacant, 76.4% of occupied units were owner-occupied, 23.6% were renter-occupied, and the homeowner and rental vacancy rates were 2.0% and 10.6%, respectively.^[13]

There were 3,802 households, of which 25.5% had children under the age of 18 living in them. Of all households, 49.5% were married-couple households, 19.1% were households with a male householder and no spouse or partner present, and 24.8% were households with a female householder and no spouse or partner present. About 32.1% of all households were made up of individuals and 16.9% had someone living alone who was 65 years of age or older.^[13]

The median age was 44.9 years. 22.3% of residents were under the age of 18 and 23.7% of residents were 65 years of age or older. For every 100 females there were 96.7 males, and for every 100 females age 18 and over there were 95.8 males age 18 and over.^[13]

96.21% of the population reported being of one race. The racial makeup of the county was 94.2% White, 0.3% Black or African American, 0.2% American Indian and Alaska Native, 0.6% Asian, <0.1% Native Hawaiian and Pacific Islander, 1.0% from some other race, and 3.8% from two or more races. Hispanic or Latino residents of any race comprised 2.9% of the population.^[14]

<0.1% of residents lived in urban areas, while 100.0% lived in rural areas.^[15]

The 2010 census recorded a population of 9,336 in the county, with a population density of 16.4/sq mi (6.3/km²). There were 4,546 housing units, of which 3,996 were occupied.^[16]

As of the census^[17] of 2000, there were 10,366 people, 4,205 households, and 2,859 families residing in the county. The population density was 18 people per square mile (6.9 people/km²). There were 4,623 housing units at an average density of 8 units per square mile (3.1 units/km²). The racial makeup of the county was 98.16% White, 0.14% Black or African American, 0.15% Native American, 0.24% Asian, 0.01% Pacific Islander, 0.67% from other races, and 0.63% from two or more races. 1.66% of the population were Hispanic or Latino of any race.

There were 4,205 households, out of which 30.70% had children under the age of 18 living with them, 57.30% were married couples living together, 7.20% had a female householder with no husband present, and 32.00% were non-families. 29.10% of all households were made up of individuals, and 16.60% had someone living alone who was 65 years of age or older. The average household size was 2.41 and the average family size was 2.97.

In the county, the population was spread out, with 25.60% under the age of 18, 6.10% from 18 to 24, 24.30% from 25 to 44, 22.40% from 45 to 64, and 21.60% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 95.50 males. For every 100 females age 18 and over, there were 89.20 males.

The median income for a household in the county was $33,883, and the median income for a family was $41,230. Males had a median income of $29,076 versus $21,657 for females. The per capita income for the county was $16,866. About 4.80% of families and 8.10% of the population were below the poverty line, including 8.90% of those under age 18 and 7.80% of those age 65 or over.

• Adaza
• Cooper
• Farlin
• Green Brier
• Winkelmans

The population ranking of the following table is based on the 2020 census of Greene County.^[2]

† county seat

School districts include:^[19]

Former districts

• George Horace Gallup (1901–1984), former resident, American statistician, invented the Gallup poll, a successful statistical method of survey sampling for measuring public opinion.
• Loren Shriver (b. 1944), former resident, American astronaut, retired United States Air Force colonel.
• Warren Allen Smith (1921–2017), former resident, American homosexual activist, writer and humanist.
• Doreen Wilber (1930–2008), former resident, American archer, Olympic gold medalist.

• National Register of Historic Places listings in Greene County, Iowa
• Raccoon River Valley Trail

• County website Archived May 26, 2018, at the Wayback Machine

42°02′07″N 94°23′44″W / 42.03528°N 94.39556°W / 42.03528; -94.39556