Lewis County ID Information


Lewis County Subdivisions

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


Total Population 3,955
Population in Households 3,881
Population in Familes 3,039
Population in Group Qrtrs 74
Population Density2 8
Diversity Index3 32


Median Household Income $36,683
Average Household Income $49,166
Per Capita Income $21,641


Total Housing Units 1,957 (100%)
Owner Occupied HU 1,165 (59.5%)
Renter Occupied HU 549 (28.1%)
Vacant Housing Units 243 (12.4%)
Median Home Value $137,610
Average Home Value $148,627


Total Households 1,714
Average Household Size 2.26
Family Households 1,055
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 0.42% 0.5%
Households 0.41% 0.5%
Families 0.16% 0.38%
Median Household Income   0.66%
Per Capita Income   1.35%


Lewis County ID - Peer Comparisons by Rank and Percentile

The table below compares Lewis County to the other 44 counties and county equivalents in Idaho 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 # 41 9th
Population Density # 25 45th
Diversity Index # 23 50th
Median Household Income # 41 9th
Per Capita Income # 30 34th

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