St. Henry is located at . The Wabash River also starts near the city. According to the United States Census Bureau, the village has a total area of, of which is land and is water.
Demographics
According to the Census Bureau, as of 2015 the median income for a household in the village was $80,000, and the median income for a family was $90,870. Males had a median income of $40,911 versus $27,102 for females. The per capita income for the village was $28,932. About 0.9% of families and 2.8% of the population were below the poverty line, including 2.0% of those under age 18 and 7.6% of those age 65 or over.
As of the census of 2010, there were 2,427 people, 862 households, and 646 families residing in the village. The population density was. There were 892 housing units at an average density of. The racial makeup of the village was 99.1% White, 0.1% African American, 0.6% from other races, and 0.2% from two or more races. Hispanic or Latino of any race were 1.4% of the population. There were 862 households of which 36.5% had children under the age of 18 living with them, 67.3% were married couplesliving together, 5.2% had a female householder with no husband present, 2.4% had a male householder with no wife present, and 25.1% were non-families. 22.4% of all households were made up of individuals and 12.6% had someone living alone who was 65 years of age or older. The average household size was 2.79 and the average family size was 3.33. The median age in the village was 35.2 years. 29.5% of residents were under the age of 18; 8.3% were between the ages of 18 and 24; 22.6% were from 25 to 44; 23.8% were from 45 to 64; and 15.7% were 65 years of age or older. The gender makeup of the village was 50.0% male and 50.0% female.
Education
St. Henry contains one public high school, St. Henry High School. The St. Henry Redskins Football team has won state titles in 1990, 1992, 1994, 1995, 2004, and 2006 with two 2nd-place finishes in 1996 and 1999. St. Henry Football is tied with Versailles and their chief rival Coldwater for the second-most state championships in Ohio for a public school since the introduction of the current playoff system in 1972. St. Henry High School is part of the Midwest Athletic Conference. St. Henry High School also holds seven girls volleyball state championships, four boys basketball state championships, and three baseball state championships. St. Henry has a public library, a branch of the Mercer County District Library.
