Lewis County, Washington
Lewis County: county in the state of Washington, United States
About
Lewis County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 75,455 and a population density of 12 people per km². After 10 years in 2020 county had an estimated population of 82,109 inhabitants. Its county seat is Chehalis. The county was created 180 years ago in 1845.
County Snapshot
Lewis County at a glance
Lewis County currently has 10 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
10
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Washington counties
39
Open related pagesLargest city
CentraliaPopulation 17,995
Top linked places
Quick Facts about Lewis County
| Population | 82,109 (2020) |
| Country | United States of America |
| State | Washington (United States) |
| Different from | Lewis County, Lewis County, Lewis and Clark County, Lewis County, Lewis County, Lewis County, Lewis County |
| Area | 6310 km2 |
| Water as percent of area | 1.4% |
| Land as percent of area | 98.6% |
| Latitude & Longitude | 46.5777,-122.3924 |
| Named for | Meriwether Lewis |
| Altitude | 1,421 feet / 433 meters |
| Capital | Chehalis |
| Establishment | December 19, 1845 |
| Time Zone | America/Los_Angeles |
| Local time | 03:25:02 (17th April 2026) |
| Density | 13 Pop. per km² as of 2020 |
| Population growth | 8.1% (2010-2020) |
| Weather | 33℉ Mostly Cloudy 7-days weather |
Geography
Lewis County is located at 46°34'40"N 122°23'33"W (46.5777300, -122.3924100). It has 8 neighbors: Cowlitz County, Grays Harbor County, Pacific County, Pierce County, Skamania County, Thurston County, Wahkiakum County and Yakima County.
Lewis County map
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The largest city of Lewis County is Centralia with a population of 17,995. Other cities include, Chehalis population 7,825, Napavine population 2,042, Winlock population 1,490 and Morton population 1,217. See all Lewis County cities & populated places.
Lewis County Populated Places
Cities, towns, neighborhoods & other populated places in Lewis County.
| City Name | Population | Title |
|---|---|---|
| Centralia | 17,995 | City in Washington State |
| Chehalis | 7,825 | City in and county seat of Lewis County, Washington, United States |
| Napavine | 2,042 | City in Lewis County, Washington, United States |
| Fords Prairie | 1,959 | Census designated place |
| Winlock | 1,490 | City in Lewis County, Washington, United States |
| Morton | 1,217 | City in Lewis County, Washington, United States |
| Mossyrock | 838 | City in Lewis County, Washington, United States |
| Toledo | 785 | City in Washington, United States |
| Pe Ell | 683 | Town of the United States |
| Vader | 677 | City in Lewis County, Washington, United States |
Weather
Mostly cloudy. Low around 33, with temperatures rising to around 35 overnight. Southwest wind 1 to 12 mph, with gusts as high as 22 mph.
7-Day ForecastOfficial website of Lewis County
Official Website- Chehalis
Demographics
The population of Lewis County increased by 8.1% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 75,455 | - | census |
| 2011 | 75,668 | 0.28% | estimation process |
| 2012 | 75,435 | -0.31% | estimation process |
| 2013 | 74,962 | -0.63% | estimation process |
| 2014 | 74,844 | -0.16% | estimation process |
| 2015 | 75,437 | 0.79% | estimation process |
| 2016 | 76,693 | 1.64% | estimation process |
| 2017 | 78,320 | 2.08% | estimation process |
| 2018 | 79,569 | 1.57% | estimation process |
| 2019 | 80,707 | 1.41% | estimation process |
| 2020 | 82,109 | 1.71% | estimation process |
People born in Lewis County (1)
American film and television writer, producer, and novelist Roy Huggins was born in Lewis County
Other places with the same name (6)
- Lewis County, New York county in New York, United States with a population of 26,187 people.
- Lewis County, West Virginia county in West Virginia, United States with a population of 15,805 people.
- Lewis County, Kentucky county in Kentucky, United States with a population of 13,262 people.
- Lewis County, Tennessee county in Tennessee, United States with a population of 12,363 people.
- Lewis County, Missouri county in Northeast Missouri, United States with a population of 9,810 people.
- Lewis County, Idaho county in Idaho, United States with a population of 3,838 people.
Washington Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| King County | 2,274,315 | County in the state of Washington, United States |
| Pierce County | 913,890 | County in the state of Washington, United States |
| Snohomish County | 830,393 | County in the state of Washington, United States |
| Seattle | 769,714 | The eighteenth most populous city in the United States and the center of the Seattle metropolitan area. |
| Spokane County | 528,225 | County in the state of Washington, United States |
| Clark County | 496,865 | County in Washington, United States |
| Thurston County | 294,074 | County in the state of Washington, United States |
| Kitsap County | 272,787 | County in the state of Washington, United States |
| Yakima County | 251,879 | County in the state of Washington, United States |
| Whatcom County | 231,016 | County in the state of Washington, United States |
| Spokane | 222,050 | The second most populous city in Washington. |
| Tacoma | 219,945 | The third most populous city in Washington. |
| Benton County | 206,426 | County in Arkansas, United States |
| Vancouver | 186,192 | The third most populous city in Washington. |
| Bellevue | 148,073 | The most populous city in Washington. |
| Skagit County | 130,789 | County in the state of Washington, United States |