St. John, WA has a population of 528 and is the 19,220th largest city in the United States. The population density is 787 per sq mi which is 573% higher than the Washington average and 769% higher than the national average. The median age in St. John is 55 which is approximately 45% higher than the Washington average of 38. In St. John, 71% of the population over 15 years of age are married, 94% speak English and 4% speak Spanish. 63% of St. John residents were born in Washington, 33% were born out of state, 2% were born outside of the United States and 2% were foreign born.
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The population density in St. John is 573% higher than Washington.
The median age in St. John is 45% higher than Washington.
In St. John 92.80% of the population is White.
In St. John 2.46% of the population is Black or African American.