Peoria, OR has a population of 189 and is the 24,708th largest city in the United States. The population density is 398 per sq mi which is 905% higher than the Oregon average and 339% higher than the national average. The median age in Peoria is 60 which is approximately 54% higher than the Oregon average of 39. In Peoria, 92% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 60% of Peoria residents were born in Oregon, 40% were born out of state, 0% were born outside of the United States and 0% were foreign born.