Parkwood, WA has a population of 6,535 and is the 5,438th largest city in the United States. The population density is 2,508 per sq mi which is 2495% higher than the Washington average and 2669% higher than the national average. The median age in Parkwood is 37 which is approximately 3% lower than the Washington average of 38. In Parkwood, 60% of the population over 15 years of age are married, 94% speak English and 1% speak Spanish. 42% of Parkwood residents were born in Washington, 49% were born out of state, 2% were born outside of the United States and 7% were foreign born.