Montesano is a very small city located in the state of Washington. With a population of 4,166 people and two associated neighborhoods, Montesano is the 150th largest community in Washington.

The population of Montesano overall has a level of education that is slightly above the US average for all US cities and towns of 21.84%. Of adults 25 and older in Montesano, 24.12% have at least a bachelor's degree.

The per capita income in Montesano in 2022 was $35,594, which is middle income relative to Washington, and upper middle income relative to the rest of the US. This equates to an annual income of $142,376 for a family of four. However, Montesano contains both very wealthy and poor people as well.

The people who call Montesano home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Montesano residents report their race to be White, followed by Asian. Important ancestries of people in Montesano include English, German, Irish, European, and Swedish.

The most common language spoken in Montesano is English. Other important languages spoken here include Polish and Italian.