Ider is a town in DeKalb County Alabama United States. At the 2010 census the population was 723. It incorporated in October 1973.GeographyIder is located at . The town is situated atop Sand Mountain a few miles west of the Alabama-Georgia state line. Alabama State Route 75 and Alabama State Route 117 intersect in Ider.According to the U.S. Census Bureau the town has a total area of 5.4sqmi all land.Major highways20px State Route 7520px State Route 117DemographicsAs of the 2010 census Ider had a population of 723. The racial and ethnic composition of the population was 93.2% non-Hispanic white 0.6% black or African American 4.0% Native American 0.1% some other race 2.1% from two or more races and 0.1% Hispanic or Latino or any race.As of the census of 2000 there were 664 people 282 households and 192 families residing in the town. The population density was 122.2 people per square mile (47.2/km²). There were 310 housing units at an average density of 57.1 per square mile (22.0/km²). The racial makeup of the town was 96.39% White 0.00% Black 1.20% Native American 0.45% from other races and 1.96% from two or more races. 0.60% of the population were Hispanic or Latino of any race.