Thurman, IA has a population of 191 and is the 24,656th largest city in the United States. The population density is 343 per sq mi which is 529% higher than the Iowa average and 279% higher than the national average. The median age in Thurman is 38 which is approximately 1% lower than the Iowa average of 38. In Thurman, 63% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 57% of Thurman residents were born in Iowa, 40% were born out of state, 0% were born outside of the United States and 3% were foreign born.