Browse / United States / Washington / Montesano
Montesano
Washingtoncity
Montesano
Total population
4,183
Median home value
$354,300
Bachelor's+
Median income
$67,540
Founded
1870
Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.
City facts
Facts from Wikidata (CC0).
Overview
Montesano is a city in and the county seat of Grays Harbor County, Washington, United States. The population was 4,138 at the 2020 census.
Read more on WikipediaHistory & geography
History
According to Edwin Van Syckle, a portion of the present-day town of Montesano was first platted in 1870 by Samuel Henry Williams, who purchased land in what was known as Wedcalf Prairie, named after the early settler William Medcalf. At about the same time, surveyor Charles Newton Byles bought a farm from Walter King on the present-day site of Montesano on April 9, 1870, and later platted three blocks on the west side of Main Street. The town of Montesano was born, but it was not incorporated until November 26, 1883, by the Washington Territorial Legislature. The people of Chehalis County voted to move the county seat to the platted town of Montesano in 1886, and the Scammon home was then known as South Montesano.
Geography
Montesano is on the north slope of the Chehalis River valley, near the confluence of the Wynoochee River and Chehalis River. The town is bordered on the north by Lake Sylvia and on the west by Sylvia Creek. According to the United States Census Bureau, the city has a total area of , of which are land and are water. This region experiences warm (but not hot) and relatively dry summers, with no average monthly temperatures above and very wet autumns and springs due to the maritime winds. According to the Köppen Climate Classification system, Montesano is in a region of oceanic climate, abbreviated Cfb on climate maps due to frequent summer rainfall, even though there is a significant drying trend during that season. The summer highs are hotter than in Aberdeen courtesy of its inland position. This also renders frequent but most often minor frosts in winter, with the climate retaining a significant maritime influence.
Excerpted from the corresponding Wikipedia article (CC BY-SA).
Demographics & economy
Race & ethnicity
Source: US Census Bureau — American Community Survey, 5-year estimates.
Geography
Coordinates & boundaries from the US Census TIGER/Line shapefiles.
Climate
Current forecast
Forecast for Montesano, WA from NOAA NWS API.
Air quality
Industrial & pollution facilities
Natural hazard risk
Health (adults)
Age-adjusted prevalence estimates from CDC PLACES (latest release).
Walkability
Amenities nearby
Wildlife & biodiversity
Most-observed species
- American CrowCorvus brachyrhynchos C.L.Brehm, 1822 · Aves2,405
- American RobinTurdus migratorius Linnaeus, 1766 · Aves2,248
- Song SparrowMelospiza melodia (A.Wilson, 1810) · Aves2,159
- European StarlingSturnus vulgaris Linnaeus, 1758 · Aves1,853
- MallardAnas platyrhynchos Linnaeus, 1758 · Aves1,560
- Canada Goose (canadensis Group)Branta canadensis (Linnaeus, 1758) · Aves1,442
- Common RavenCorvus corax Linnaeus, 1758 · Aves1,354
- Red-winged BlackbirdAgelaius phoeniceus (Linnaeus, 1766) · Aves1,285
Citizen-science & research observations from the Global Biodiversity Information Facility (GBIF).
Schools
Earthquake history
Most recent
- M 2.84 — 2026-05-274 km W of Wauna, Washington
- M 2.86 — 2026-03-112 km W of Home, Washington
- M 2.6 — 2026-01-251 km ENE of Enetai, Washington
- M 2.82 — 2025-12-255 km W of Gorst, Washington
- M 2.65 — 2025-12-195 km WSW of Pe Ell, Washington
- M 2.84 — 2025-10-0921 km NW of Hoodsport, Washington
Events from the USGS Earthquake Catalog (global) (FDSN Event Web Service).
Photos
Sights & places nearby
Notable people from here
Nearby places in Washington
Geography & sun
Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.
Nearby airports
Public attention
Pageview totals from the Wikimedia Pageviews API.
Books about Montesano

Search results from Open Library.
Recent natural events nearby
- Wildfire HIGH LAVA, Skamania, WashingtonWildfires · 2026-07-23 · 105 mi
- Wildfire THREE QUEENS, Kittitas, WashingtonWildfires · 2026-07-16 · 113 mi
- Wildfire RANSIER, Yakima, WashingtonWildfires · 2026-07-26 · 142 mi
- Wildfire Signal Peak, Yakima, WashingtonWildfires · 2026-07-24 · 143 mi
- Wildfire LITTLE GIANT, Chelan, WashingtonWildfires · 2026-07-16 · 145 mi
- Wildfire 8 MILE, Wasco, OregonWildfires · 2026-07-24 · 155 mi
- Wildfire GRASSHOPPER, Wasco, OregonWildfires · 2026-07-23 · 157 mi
- Wildfire Austin Non-Stat, Clackamas, OregonWildfires · 2026-08-12 · 158 mi
Wildfires, storms and other events from NASA EONET (last 12 months, within 250 mi).
Ground air-quality sensors
Recently spotted species
Nearest stream gauge
Events
Gallery
Sources
- • Wikipedia
- • US Census Bureau (ACS 5-year estimates)
- • NOAA National Weather Service
- • Wikidata
- • USGS Earthquake Catalog (global feed)
- • GBIF (Global Biodiversity Information Facility)
- • CDC PLACES
- • Open-Meteo / sunrise-sunset.org
- • Wikipedia Pageviews API
- • Open Library
- • NASA EONET