According to the United States Census Bureau, the village has a total area of 2.83 square miles (7.33 km2), all land.[9]
State Routes 41, 125, and 247 all intersect and run concurrently through the downtown area.
Ironically, West Union lies east of Union, Ohio, a city in Montgomery County. West Union and Union are not adjacent to each other, actually being approximately 120 miles from each other.
As of the census[11] 3,421, 1,322 households, and 420 families living in the village. The population density was 1,145.2 inhabitants per square mile (442.2/km2). There were 1,493 housing units at an average density of 527.6 per square mile (203.7/km2). The racial makeup of the village was 97.4% White, 0.4% African American, 0.2% Native American, 0.2% Asian, 0.3% from other races, and 1.5% from two or more races. HispanicorLatino of any race were 0.8% of the population.
There were 1,322 households, of which 32.4% had children under the age of 18 living with them, 38.5% were married couples living together, 17.6% had a female householder with no husband present, 4.8% had a male householder with no wife present, and 39.1% were non-families. 35.1% of all households were made up of individuals, and 16.5% had someone living alone who was 65 years of age or older. The average household size was 2.29 and the average family size was 2.91.
The median age in the village was 40.1 years. 23.4% of residents were under the age of 18; 9% were between the ages of 18 and 24; 22.8% were from 25 to 44; 24.5% were from 45 to 64, and 20.2% were 65 years of age or older. The gender makeup of the village was 45.5% male and 54.5% female.
As of the census[12] of 2000, there were 2,903 people, 1,242 households, and 757 families living in the village. The population density was 1,130.4 inhabitants per square mile (436.4/km2). There were 13 housing units at an average density of 534.6 per square mile (206.4/km2). The racial makeup of the village was 98.11% White, 0.24% African American, 0.002% Native American, 0.10% Asian, 0.07% Pacific Islander, 0.10% from other races, and 0.65% from two or more races. HispanicorLatino of any race were 0.45% of the population.
There were 1,242 households, out of which 28.4% had children under the age of 18 living with them, 40.7% were married couples living together, 16.5% had a female householder with no husband present, and 39.0% were non-families. 35.5% of all households were made up of individuals, and 18.2% had someone living alone who was 65 years of age or older. The average household size was 2.20 and the average family size was 2.81.
In the village, the population was spread out, with 22.0% under the age of 18, 9.8% from 18 to 24, 25.2% from 25 to 44, 20.9% from 45 to 64, and 22.1% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 76.4 males. For every 100 females age 18 and over, there were 72.7 males.
The median income for a household in the village was $20,566, and the median income for a family was $25,531. Males had a median income of $25,104 versus $19,107 for females. The per capita income for the village was $13,302. About 15.8% of families and 21.8% of the population were below the poverty line, including 22.0% of those under age 18 and 12.1% of those age 65 or over.
