West Pasco, WA has a population of 2,398 and is the 10,071st largest city in the United States. The population density is 1,414 per sq mi which is 1363% higher than the Washington average and 1461% higher than the national average. The median age in West Pasco is 47 which is approximately 24% higher than the Washington average of 38. In West Pasco, 76% of the population over 15 years of age are married, 92% speak English and 8% speak Spanish. 54% of West Pasco residents were born in Washington, 43% were born out of state, 0% were born outside of the United States and 3% were foreign born.