Lewiston, ID Profile: Facts & Data


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Lewiston, Idaho - Basic Facts

The City of Lewiston is the 9th largest city in Idaho with a population of 33,348 as of July 1, 2018. Lewiston ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Idaho. See peer rankings below.

The primary coordinate point for Lewiston is located at latitude 46.4165 and longitude -117.0177 in Nez Perce County. The formal boundaries for the City of Lewiston encompass a land area of 17.23 sq. miles and a water area of 0.81 sq. miles. Nez Perce County is in the Pacific time zone (GMT -8). The elevation is 738 feet.

The City of Lewiston (GNIS ID: 2410825) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Idaho is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Lewiston is located within Lewiston Division of Nez Perce County.

Alternate Unofficial Names for Lewiston: Stqhweyiyep.

Jump to... (On This Page!)
  1. Lewiston 2018 Demographic Data
  2. Growth Rates for Lewiston (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Idaho Research Tools (Easy Tools & Current Data)
  3. Idaho Data Comparison Tool - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


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


Total Population 33,348
Population in Households 32,354
Population in Familes 24,516
Population in Group Qrtrs 994
Population Density2 1,935
Diversity Index3 22


Median Household Income $52,362
Average Household Income $64,402
Per Capita Income $27,417


Total Housing Units 14,574 (100%)
Owner Occupied HU 9,242 (63.4%)
Renter Occupied HU 4,566 (31.3%)
Vacant Housing Units 766 ( 5.3%)
Median Home Value $190,445
Average Home Value $218,246


Total Households 13,808
Average Household Size 2.34
Family Households 8,395
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population 0.54% 0.52%
Households 0.43% 0.47%
Families 0.28% 0.32%
Median Household Income   2.16%
Per Capita Income   2.81%

Lewiston, ID - Peer Comparisons by Rank and Percentile

The table below compares Lewiston to the other 227 incorporated cities, towns and CDPs 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 # 9 96th
Population Density # 52 78th
Diversity Index # 136 41st
Median Household Income # 61 74th
Per Capita Income # 48 79th

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

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Idaho Census Data Comparison Tool

Compare Idaho July 1, 2018 Data
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