Peoria, OR has a population of 84 and is the 27,252nd largest city in the United States. The population density is 178 per sq mi which is 347% higher than the Oregon average and 97% higher than the national average. The median age in Peoria is 61 which is approximately 56% higher than the Oregon average of 39. In Peoria, 100% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 100% of Peoria residents were born in Oregon, 0% were born out of state, 0% were born outside of the United States and 0% were foreign born.