Ponderay, ID has a population of 965 and is the 15,385th largest city in the United States. The population density is 332 per sq mi which is 1642% higher than the Idaho average and 267% higher than the national average. The median age in Ponderay is 37 which is approximately 4% higher than the Idaho average of 36. In Ponderay, 36% of the population over 15 years of age are married, 98% speak English and 0% speak Spanish. 35% of Ponderay residents were born in Idaho, 61% were born out of state, 1% were born outside of the United States and 2% were foreign born.