Heppner, OR has a population of 1,186 and is the 14,098th largest city in the United States. The population density is 964 per sq mi which is 2335% higher than the Oregon average and 964% higher than the national average. The median age in Heppner is 40 which is approximately 3% higher than the Oregon average of 39. In Heppner, 68% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 58% of Heppner residents were born in Oregon, 39% were born out of state, 1% were born outside of the United States and 1% were foreign born.