Raft Island, WA has a population of 342 and is the 21,750th largest city in the United States. The population density is 1,087 per sq mi which is 1025% higher than the Washington average and 1100% higher than the national average. The median age in Raft Island is 62 which is approximately 66% higher than the Washington average of 38. In Raft Island, 72% of the population over 15 years of age are married, 97% speak English and 0% speak Spanish. 34% of Raft Island residents were born in Washington, 66% were born out of state, 0% were born outside of the United States and 0% were foreign born.