| Official Name: | Fort Jennings, Ohio |
| Settlement Type: | Village |
| Mapsize: | 250px |
| Image Map1: | Map of Putnam County Ohio Highlighting Fort Jennings Village.png |
| Mapsize1: | 250px |
| Map Caption1: | Location of Fort Jennings in Putnam County |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Ohio |
| Subdivision Type2: | County |
| Subdivision Name2: | Putnam |
| Leader Title: | Mayor |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 1.47 |
| Area Land Km2: | 1.46 |
| Area Water Km2: | 0.02 |
| Area Total Sq Mi: | 0.57 |
| Area Land Sq Mi: | 0.56 |
| Area Water Sq Mi: | 0.01 |
| Population As Of: | 2020 |
| Population Est: | 525 |
| Pop Est As Of: | 2023 |
| Pop Est Footnotes: | [2] |
| Population Total: | 525 |
| Population Density Km2: | 360.32 |
| Population Density Sq Mi: | 932.50 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 748 |
| Coordinates: | 40.9069°N -84.2997°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 45844 |
| Area Code: | 419 |
| Blank Name: | FIPS code |
| Blank Info: | 39-27818[3] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2398902 |
Fort Jennings is a village in Jennings Township, Putnam County, Ohio, United States. The population was 525 at the 2020 census.
The first settlement in Fort Jennings was made around 1850.[4] Fort Jennings took its name from a pioneer Virginia Hellman built near the site in 1812.[5] The village was incorporated in 1881.[6]
According to the United States Census Bureau, the village has a total area of 0.53sqmi, of which 0.52sqmi is land and 0.01sqmi is water.[7]
As of the census[8] of 2010, there were 485 people, 194 households, and 132 families living in the village. The population density was 932.7PD/sqmi. There were 207 housing units at an average density of 398.1/sqmi. The racial makeup of the village was 99.2% White and 0.8% Asian.
There were 194 households, of which 32.5% had children under the age of 18 living with them, 56.7% were married couples living together, 8.2% had a female householder with no husband present, 3.1% had a male householder with no wife present, and 32.0% were non-families. 30.4% of all households were made up of individuals, and 18.5% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 3.17.
The median age in the village was 39.1 years. 27% of residents were under the age of 18; 7.4% were between the ages of 18 and 24; 23.7% were from 25 to 44; 24.9% were from 45 to 64; and 16.9% were 65 years of age or older. The gender makeup of the village was 47.8% male and 52.2% female.
As of the census of 2000, there were 432 people, 171 households, and 123 families living in the village. The population density was 852.2sp=usNaNsp=us. There were 181 housing units at an average density of 357.1sp=usNaNsp=us. The racial makeup of the village was 99.77% White and 0.23% African American.
There were 171 households, out of which 33.9% had children under the age of 18 living with them, 62.0% were married couples living together, 6.4% had a female householder with no husband present, and 27.5% were non-families. 26.3% of all households were made up of individuals, and 15.2% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 3.06.
In the village, the population was spread out, with 27.8% under the age of 18, 5.1% from 18 to 24, 28.7% from 25 to 44, 20.8% from 45 to 64, and 17.6% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 94.6 males. For every 100 females age 18 and over, there were 96.2 males.
The median income for a household in the village was $44,464, and the median income for a family was $53,393. Males had a median income of $37,750 versus $23,750 for females. The per capita income for the village was $20,169. About 2.3% of families and 1.5% of the population were below the poverty line, including none of those under age 18 and 9.0% of those age 65 or over.
Jennings Local School District operates one elementary school and Fort Jennings High School.[9]
Fort Jennings has a public library, a branch of the Putnam County District Library.[10]