Montesano is a city located in Washington. With a 2020 population of 4,124, it is the 131st largest city in Washington and the 5317th largest city in the United States. Montesano is currently growing at a rate of 0.88% annually and its population has increased by 3.72% since the most recent census, which recorded a population of 3,976 in 2010. Montesano reached it's highest population of 4,124 in 2021. Spanning over 11 miles, Montesano has a population density of 397 people per square mile.
The average household income in Montesano is $103,832 with a poverty rate of 7.72%. The median rental costs in recent years comes to $834 per month, and the median house value is $204,100. The median age in Montesano is 43.4 years, 38.9 years for males, and 44.1 years for females. For every 100 females there are 86.7 males.