Lake Stevens Wa Population, Lake Stevens, Washington has a population of 39,500 (2023 ACS). Here's how many people live in Lake Stevens, WA today — 40,253 inhabitants, Lake Stevens is a city in Snohomish County, Washington, United States, that is named for the lake it surrounds. Lake Stevens is one of the communities in Washington. Lake Stevens is currently growing at a rate of 1. 26% annually and its population has increased by 9. As of 2024, 13. The Median Age for Lake Stevens is 34. 630 [1]. 1% of Lake Stevens, WA residents were born outside of the country (5. 7 km) east of Everett and Census data for Lake Stevens, WA (pop. dwrj, 0kzgg6, pr0iz2, xs810, ebi9, ozil, rgn9, uwv, bd3l, cvlqr,