Lewis County WA Information


Lewis County Subdivisions

Lewis County WA Data & Demographics (As of July 1, 2018)


Total Population 78,658
Population in Households 77,717
Population in Familes 62,410
Population in Group Qrtrs 941
Population Density1 33
Diversity Index2 38


Median Household Income $48,405
Average Household Income $61,980
Per Capita Income $24,580


Total Housing Units 35,369 (100%)
Owner Occupied HU 20,706 (58.5%)
Renter Occupied HU 10,216 (28.9%)
Vacant Housing Units 4,447 (12.6%)
Median Home Value $200,747
Average Home Value $236,460


Total Households 30,922
Average Household Size 2.51
Family Households 20,795
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.51% 0.72%
Households 0.47% 0.71%
Families 0.41% 0.67%
Median Household Income   2.02%
Per Capita Income   2.56%


Lewis County WA - Peer Comparisons by Rank and Percentile

The table below compares Lewis County to the other 39 counties and county equivalents in Washington by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 16 62nd
Population Density # 22 46th
Diversity Index # 25 38th
Median Household Income # 32 21st
Per Capita Income # 33 18th

Additional comparisons and rankings can be made with a VERY EASY TO USE Washington Census Data Comparison Tool.