Luzerne, IA has a population of 138 and is the 25,953rd largest city in the United States. The population density is 1,135 per sq mi which is 1978% higher than the Iowa average and 1153% higher than the national average. The median age in Luzerne is 48 which is approximately 26% higher than the Iowa average of 38. In Luzerne, 75% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 88% of Luzerne residents were born in Iowa, 11% were born out of state, 1% were born outside of the United States and 0% were foreign born.