Napavine is a city located in Washington. With a 2020 population of 2,085, it is the 165th largest city in Washington and the 7464th largest city in the United States. Napavine is currently growing at a rate of 2.06% annually and its population has increased by 18.06% since the most recent census, which recorded a population of 1,766 in 2010. Napavine reached it's highest population of 2,085 in 2021. Spanning over 3 miles, Napavine has a population density of 721 people per square mile.
The average household income in Napavine is $61,973 with a poverty rate of 18.55%. The median rental costs in recent years comes to $1,063 per month, and the median house value is $169,900. The median age in Napavine is 34.3 years, 29.4 years for males, and 35.6 years for females. For every 100 females there are 82.6 males.