Lake Stickney, WA has a population of 9,533 and is the 4,083rd largest city in the United States. The population density is 6,235 per sq mi which is 6349% higher than the Washington average and 6782% higher than the national average. The median age in Lake Stickney is 33 which is approximately 14% lower than the Washington average of 38. In Lake Stickney, 52% of the population over 15 years of age are married, 53% speak English and 15% speak Spanish. 38% of Lake Stickney residents were born in Washington, 24% were born out of state, 4% were born outside of the United States and 34% were foreign born.