Tanner, WA has a population of 1,090 and is the 14,607th largest city in the United States. The population density is 284 per sq mi which is 194% higher than the Washington average and 213% higher than the national average. The median age in Tanner is 41 which is approximately 9% higher than the Washington average of 38. In Tanner, 64% of the population over 15 years of age are married, 95% speak English and 2% speak Spanish. 48% of Tanner residents were born in Washington, 43% were born out of state, 6% were born outside of the United States and 3% were foreign born.