King City, OR has a population of 3,599 and is the 7,922nd largest city in the United States. The population density is 4,854 per sq mi which is 12158% higher than the Oregon average and 5258% higher than the national average. The median age in King City is 60 which is approximately 52% higher than the Oregon average of 39. In King City, 60% of the population over 15 years of age are married, 88% speak English and 3% speak Spanish. 41% of King City residents were born in Oregon, 48% were born out of state, 1% were born outside of the United States and 10% were foreign born.