| County: | Lyon County |
| State: | Kentucky |
| Ex Image: | Lyon County Courthouse, Eddyville.jpg |
| Ex Image Size: | 220px |
| Ex Image Cap: | Lyon County Courthouse in Eddyville, Kentucky. |
| Founded Year: | 1854 |
| Seat Wl: | Eddyville |
| Largest City Wl: | Eddyville |
| Area Total Sq Mi: | 257 |
| Area Land Sq Mi: | 214 |
| Area Water Sq Mi: | 43 |
| Area Percentage: | 17 |
| Census Yr: | 2020 |
| Pop: | 8680 |
| Pop Est As Of: | 2023 |
| Population Est: | 9187 |
| Density Sq Mi: | auto |
| Time Zone: | Central |
| Web: | http://www.lyoncountyky.com/ |
| District: | 1st |
Lyon County is a county located in the U.S. state of Kentucky. As of the 2020 census, the population was 8,680.[1] Its county seat is Eddyville.[2] The county was formed from Caldwell County, Kentucky in 1854 and named for former Congressman Chittenden Lyon.[3] [4]
According to the U.S. Census Bureau, the county has a total area of, of which is land and (17%) is water.[5]
As of the census[6] of 2000, there were 8,080 people, 2,898 households, and 2,043 families living in the county. The population density was 38/sqmi. There were 4,189 housing units at an average density of 19/sqmi. The racial makeup of the county was 91.86% White, 6.72% Black or African American, 0.30% Native American, 0.17% Asian, 0.01% Pacific Islander, 0.40% from other races, and 0.54% from two or more races. 0.73% of the population were Hispanic or Latino of any race.
The largest ancestry groups in Lyon County, Kentucky according to the census of 2000 are:
There were 2,898 households, out of which 25.10% had children under the age of 18 living with them, 59.80% were married couples living together, 8.10% had a female householder with no husband present, and 29.50% were non-families. 26.80% of all households were made up of individuals, and 12.20% had someone living alone who was 65 years of age or older. The average household size was 2.26 and the average family size was 2.70.
The age distribution was 15.80% under the age of 18, 7.50% from 18 to 24, 32.90% from 25 to 44, 27.00% from 45 to 64, and 16.80% who were 65 years of age or older. The median age was 42 years. For every 100 females there were 133.50 males. For every 100 females age 18 and over, there were 138.10 males.
The median income for a household in the county was $31,694, and the median income for a family was $39,940. Males had a median income of $36,034 versus $21,806 for females. The per capita income for the county was $16,016. About 10.20% of families and 12.70% of the population were below the poverty line, including 17.30% of those under age 18 and 13.30% of those age 65 or over.
The school district for all of the county is Lyon County School District.[7]