There were 754 households out of which 24.0% had children under the age of 18 living with them, 52.5% were married couples living together, 8.1% had a female householder with no husband present, and 36.5% were non-families. 32.8% of all households were made up of individuals and 19.8% 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 2.76. In the city, the population was spread out with 19.4% under the age of 18, 7.3% from 18 to 24, 25.1% from 25 to 44, 24.2% from 45 to 64, and 24.0% who were 65 years of age or older. The median age was 44 years. For every 100 females, there were 85.3 males. For every 100 females age 18 and over, there were 84.2 males. The median income for a household in the city was $30,000, and the median income for a family was $36,944. Males had a median income of $30,250 versus $16,579 for females. The per capita income for the city was $14,318. About 9.1% of families and 13.3% of the population were below the poverty line, including 21.0% of those under age 18 and 13.5% of those age 65 or over. Grayville had been at the northern end of a four-mile-long oxbow bend of the main channel of the Wabash River. The river changed course after a flood in 1985, with the end result being that the town is now two miles from the new river channel. Bonpas Creek trickles through a portion of the former river channel, creating continued access to water for canoes, rafts, and extremely shallow-draft small boats. For information on Grayville's schools visit https://www.gcusd.com/