St. Martin, Ohio
As of the census of 2000, there were 91 people, 32 households, and 28 families residing in the village. The population density was 78.3 people per square mile. There were 34 housing units at an average density of 29.3/sq mi. The racial makeup of the village was 100.00% White. Hispanic or Latino of any race were 1.10% of the population.
There were 32 households out of which 40.6% had children under the age of 18 living with them, 81.3% were married couples living together, 6.3% had a female householder with no husband present, and 12.5% were non-families. 12.5% of all households were made up of individuals and 6.3% had someone living alone who was 65 years of age or older. The average household size was 2.84 and the average family size was 3.11.
In the village the population was spread out with 28.6% under the age of 18, 6.6% from 18 to 24, 26.4% from 25 to 44, 30.8% from 45 to 64, and 7.7% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 102.2 males. For every 100 females age 18 and over, there were 103.1 males.
The median income for a household in the village was $60,417, and the median income for a family was $60,833. Males had a median income of $33,750 versus $28,125 for females. The per capita income for the village was $18,833. None of the population and none of the families were below the poverty line.