• county
  • FIPS 53041
  • Largest town: Centralia

Lewis County, Washington

Lewis County had 87,049 residents in the Census Vintage 2024 estimate, on 2,402.8 square miles of land. It ranks 15th of 39 in Washington by population and 6th by land area.

Population
87,049
#15 of 39 in Washington · #681 in US
Area
2,402.8 sq mi
#6 of 39 in Washington · #227 in US
Density
36 / sq mi
#21 of 39 in Washington · #1,767 in US
Median household income
$67,877
#25 of 39 in Washington · #1,138 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Lewis County within Washington. Pin: Olympia.

Measure from here

Tools and pages that start from Lewis County

Lewis County population, land area and income

Lewis County had 87,049 residents in the Census Vintage 2024 estimate, on 2,402.8 square miles of land. It ranks 15th of 39 in Washington by population and 6th by land area. That works out to 36.2 people per square mile, below the US average of 96.3, and below the national county median.

The median county-equivalent in Washington has 69,632 residents; Lewis County is somewhat larger.

Its SAIPE 2023 median household income of $67,877 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

87,049

3144th1st

681st of 3,144 (US)

Land area

2,403 sq mi

3144th1st

227th of 3,144 (US)

Density

36.2 / sq mi

3144th1st

1767th of 3,144 (US)

Median household income

$67,877

3143rd1st

1138th of 3,143 (US)

Rank within Washington (39)

Population

87,049

39th1st

15th of 39 (WA)

Land area

2,403 sq mi

39th1st

6th of 39 (WA)

Density

36.2 / sq mi

39th1st

21st of 39 (WA)

Median household income

$67,877

39th1st

25th of 39 (WA)

How Lewis County's population changed since 2020

Lewis County gained 4,487 residents between the July 2020 and July 2024 estimates, a rise of 5.4%. That ranks 8th of 39 in Washington for growth. The median Washington county changed by +3.2%, and the state as a whole by +3.0%.

Since the April 2020 estimates base, Lewis County recorded 3,909 births and 4,729 deaths, a natural change of -820. Net international migration added +447 and net domestic migration, people moving to or from other US counties, came to +5,359. The largest single component was domestic migration, which added 5,359 people.

82.6k202084.6k202185.3k202286.3k202387.0k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
3,909
Deaths
4,729
Net international migration
+447
Net domestic migration
+5,359
Change, July 2023 to July 2024
+785

Where Lewis County is

The Census internal point of Lewis County is at 46.580100, -122.377400. It sits in UTM zone 10N. The map shades Washington's 39 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Lewis County outlined. Dots are towns of 1,000+ people with residents in it.

King County: +2.9%Thurston County: +2.3%Garfield County: +4.7%Adams County: +2.1%Kitsap County: +2.0%Mason County: +5.5%Stevens County: +5.2%Walla Walla County: -0.9%Whitman County: +1.2%Pierce County: +1.9%Benton County: +5.2%Columbia County: +1.8%Skamania County: +5.1%Douglas County: +6.4%Kittitas County: +2.9%Klickitat County: +5.7%Pacific County: +3.2%Grant County: +5.3%Grays Harbor County: +2.7%Jefferson County: +2.7%Lincoln County: +8.6%San Juan County: +4.7%Skagit County: +2.2%Island County: -0.6%Ferry County: +4.8%Chelan County: +2.4%Clark County: +4.3%Asotin County: +0.9%Franklin County: +4.2%Whatcom County: +3.3%Snohomish County: +4.1%Pend Oreille County: +6.1%Yakima County: +0.7%Clallam County: +0.8%Wahkiakum County: +7.9%Spokane County: +2.7%Okanogan County: +6.6%Cowlitz County: +2.7%Lewis County: +5.4%
Change 2020 to 2024
  1. < +1.9%
  2. < +2.7%
  3. < +4.2%
  4. < +5.3%
  5. ≥ +5.3%
no data

Orange pin: Lewis County internal point. Dark pin: Olympia.

Internal point

Decimal
46.580100, -122.377400
DMS
46°34'48.36"N 122°22'38.64"W
UTM
10N 547703.0E 5158692.1N
Geohash
c22bzpxkx
Plus code
84RVHJJF+22

Towns in Lewis County

5 incorporated places of 1,000+ people have residents in Lewis County, 32,537 people together, or 37% of the county. Each figure counts only the part of the town inside Lewis County; towns marked "part" extend into another county. The largest is Centralia with 19,061.

  1. 01Centralia19,061
  2. 02Chehalis7,717
  3. 03Winlock2,515
  4. 04Napavine2,155
  5. 05Morton1,089
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Lewis County

The Census 2024 county adjacency file lists 8 neighbors for Lewis County. The most populous is Pierce County, WA, with 941,170 residents. Distances run between Census internal points in a straight line.

Distance to Olympia and the nearest big city

Olympia is 40.0 miles NW of Lewis County's internal point in a straight line. The nearest place of 100,000 or more is Tacoma, WA (population 228,202), 46.6 miles away. The nearest place of 10,000 or more is Yelm, WA (population 11,715), 28.0 miles away.

Lewis County FIPS code

The FIPS code of Lewis County is 53041: state code 53 for Washington plus county code 041. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $67,877.

Questions people ask

What is the population of Lewis County, Washington?

The Census Vintage 2024 estimate for July 1, 2024 is 87,049. That is up 4,487 people (5.4%) from the July 2020 estimate of 82,562.

What is the FIPS code of Lewis County?

53041. The first two digits (53) are Washington; the last three (041) identify the county.

What is the largest town in Lewis County?

Centralia, with 19,061 residents inside Lewis County in 2024.

Which counties border Lewis County?

8 county-equivalents border it in the Census 2024 adjacency file: Pierce County, WA; Thurston County, WA; Yakima County, WA; Cowlitz County, WA; Grays Harbor County, WA; Pacific County, WA; Skamania County, WA; Wahkiakum County, WA.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.