Grabill, IN has a population of 1,448 and is the 12,903rd largest city in the United States. The population density is 2,251 per sq mi which is 1154% higher than the Indiana average and 2384% higher than the national average. The median age in Grabill is 34 which is approximately 9% lower than the Indiana average of 37. In Grabill, 61% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 75% of Grabill residents were born in Indiana, 25% were born out of state, 0% were born outside of the United States and 1% were foreign born.