Grandview, IA has a population of 449 and is the 20,218th largest city in the United States. The population density is 1,981 per sq mi which is 3526% higher than the Iowa average and 2087% higher than the national average. The median age in Grandview is 39 which is approximately 3% higher than the Iowa average of 38. In Grandview, 71% of the population over 15 years of age are married, 90% speak English and 9% speak Spanish. 83% of Grandview residents were born in Iowa, 11% were born out of state, 0% were born outside of the United States and 5% were foreign born.