Elementary School District · CA
Ontario-Montclair School District
Ontario-Montclair School District is a elementary school district in California with a community population of 165,937. The median household income is $78,001 and the median age is 33.5.
165,937
Population
6794
People / sq mi
$78,001
Median Income
33.5
Median Age
Ontario-Montclair School District covers 24 sq mi of land at 6793.5 people per square mile.
Race & Ethnicity
| White | 20.4% |
| Black or African American | 0.1% |
| Asian | 16.0% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$78,001
Median Household Income
$28,056
Per Capita Income
12.2%
Poverty Rate
4.0%
Unemployment
Housing
$570,100
Median Home Value
$1,842
Median Rent
54.3%
Homeownership
Education Attainment
72.9%
High School+
16.6%
Bachelor's+
Other California School Districts
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State rankings
Frequently Asked Questions
Ontario-Montclair School District serves a community with a population of 165,937 according to the latest Census ACS 5-Year estimates. This elementary school district is located in California.
The median household income in Ontario-Montclair School District is $78,001, with a per capita income of $28,056. The poverty rate is 12.2%.
Ontario-Montclair School District is 20.4% White, 0.1% Black or African American, 16.0% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Ontario-Montclair School District, 72.9% of adults have a high school diploma or higher, and 16.6% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Ontario-Montclair School District is $570,100, with a median rent of $1,842. The homeownership rate is 54.3%.
More from California
Data for Ontario-Montclair School District from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a elementary school district (GEOID: 0628470).
Ontario-Montclair School District stands apart on settlement density — it is among the most densely settled of US school districts, at roughly 6,794 people per square mile. Ontario-Montclair School District is a school district in California with a population of 165,937.
The typical household here earns about $78,001, near the US median of $78,538. Roughly 12.2% of residents fall below the poverty line, close to the national 12.4%. Home prices are steep, with the typical property valued at $570,100, with typical rent around $1,842.
Degree attainment is on the lower side for US school districts: 16.6% of adults hold a bachelor’s degree, below the national 35.0%.
That density explains much of the rest of the profile in Ontario-Montclair School District: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Source: U.S. Census Bureau ACS, 2026.