Unified School District · ID
Lewiston Independent School District 340
Lewiston Independent School District 340 is a unified school district in Idaho with a community population of 37,403. The median household income is $73,624 and the median age is 40.3.
37,403
Population
268
People / sq mi
$73,624
Median Income
40.3
Median Age
Lewiston Independent School District 340 covers 140 sq mi of land at 268.0 people per square mile.
Race & Ethnicity
| White | 90.9% |
| Black or African American | 0.0% |
| Asian | 62.6% |
| Hispanic or Latino (any race) | 0.2% |
Economy & Income
$73,624
Median Household Income
$39,038
Per Capita Income
8.0%
Poverty Rate
1.4%
Unemployment
Housing
$340,500
Median Home Value
$1,029
Median Rent
69.2%
Homeownership
Education Attainment
93.9%
High School+
27.8%
Bachelor's+
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State rankings
Frequently Asked Questions
Lewiston Independent School District 340 serves a community with a population of 37,403 according to the latest Census ACS 5-Year estimates. This unified school district is located in Idaho.
The median household income in Lewiston Independent School District 340 is $73,624, with a per capita income of $39,038. The poverty rate is 8.0%.
Lewiston Independent School District 340 is 90.9% White, 0.0% Black or African American, 62.6% Asian, and 0.2% Hispanic or Latino, per Census ACS data.
In Lewiston Independent School District 340, 93.9% of adults have a high school diploma or higher, and 27.8% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Lewiston Independent School District 340 is $340,500, with a median rent of $1,029. The homeownership rate is 69.2%.
More from Idaho
Data for Lewiston Independent School District 340 from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a unified school district (GEOID: 1601860).
Homeownership is the standout figure in Lewiston Independent School District 340: 69.2% of homes are owner-occupied, higher than the national rate. Lewiston Independent School District 340 is a school district in Idaho with a population of 37,403.
Median household income is $73,624, below the US median of $78,538. The poverty rate is 8.0%, below the national 12.4%. Home values run above average at $340,500, with typical rent around $1,029.
Degree attainment is mid-range for US school districts: 27.8% of adults hold a four-year degree, below the national 35.0%.
Source: U.S. Census Bureau ACS, 2026.