Lewis County WA Information


Lewis County Subdivisions

Lewis County WA Data & Demographics (As of July 1, 2017)


Total Population 77,144
Daytime Population: Workers 29,605
Daytime Population: Residents 45,457
Total Daytime Population (TDP) 75,062
Ratio TDP/Total Population1 0.97
Population in Households 76,207
Population in Familes 60,761
Population in Group Qrtrs 937
Population Density2 32
Diversity Index3 38


Median Household Income $48,711
Average Household Income $60,898
Per Capita Income $24,157


Total Housing Units 34,910 (100%)
Owner Occupied HU 20,850 (59.7%)
Renter Occupied HU 9,476 (27.1%)
Vacant Housing Units 4,584 (13.1%)
Median Home Value $196,218
Average Home Value $227,974


Total Households 30,326
Average Household Size 2.51
Family Households 20,411
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 0.31% 0.37%
Households 0.27% 0.35%
Families 0.21% 0.32%
Median Household Income   3.08%
Per Capita Income   3.64%


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, 2017 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 # 26 36th
Per Capita Income # 32 21st

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