Education in Ontario, California: official figures
22.5% of adults aged 25 and over in Ontario held a bachelor's degree or higher in 2020-2024, 124th lowest of 823 US cities of 50,000 or more (US: 35.7%; California: 37.1%).
How many people in Ontario have a graduate degree?
6.0% of adults aged 25 and over in Ontario held a master's, professional or doctoral degree, 65th lowest of 823 US cities of 50,000 or more (US: 14.1%); 0.6% held a doctorate.
Source: U.S. Census Bureau · saved copyWhat is the education level of adults in Ontario?
In Ontario, 27.3% of adults aged 25 and over had a high school diploma or equivalent as their highest qualification and 28.3% had some college or an associate's degree (US: 26.0% and 27.9%).
Source: U.S. Census Bureau · saved copyHow many students are there in Ontario?
49,636 residents of Ontario aged 3 and over were enrolled in school or college in 2020-2024, 28.6% of that age group, 189th highest of 823 US cities of 50,000 or more (US: 24.7%); 32,904 were in kindergarten to grade 12, including 10,919 in grades 9 to 12.
Source: U.S. Census Bureau · saved copyHow many college students live in Ontario?
12,072 residents of Ontario were enrolled as college undergraduates and 2,714 in graduate or professional school in 2020-2024, together 8.5% of residents aged 3 and over, 180th highest of 823 US cities of 50,000 or more (US: 6.6%).
Source: U.S. Census Bureau · saved copyHow many children in Ontario attend preschool?
1,946 children in Ontario were enrolled in nursery school or preschool in 2020-2024.
Source: U.S. Census Bureau · saved copyHow Ontario compares with other cities in the United States
Adults 25+ with a bachelor's degree or higher (2020-2024)
Ontario ranks 700 of 823, highest first.
| Rank | City | Adults 25+ with a bachelor's degree or higher |
|---|---|---|
| 697 | Harlingen | 22.6% |
| 698 | Menifee | 22.5% |
| 699 | Lawton | 22.5% |
| 700 | Ontario | 22.5% |
| 701 | Florissant | 22.5% |
| 702 | Decatur | 22.4% |
| 703 | Cleveland | 22.4% |
Adults 25+ with a graduate or professional degree (2020-2024)
Ontario ranks 759 of 823, highest first.
| Rank | City | Adults 25+ with a graduate or professional degree |
|---|---|---|
| 756 | Coon Rapids | 6.1% |
| 757 | Killeen | 6.0% |
| 758 | Anderson | 6.0% |
| 759 | Ontario | 6.0% |
| 760 | Colton | 6.0% |
| 761 | Racine | 5.9% |
| 762 | Victoria | 5.9% |
Adults 25+ without a high school diploma (2020-2024)
Ontario ranks 65 of 823, highest first.
| Rank | City | Adults 25+ without a high school diploma |
|---|---|---|
| 62 | National City | 22.4% |
| 63 | Anaheim | 22.1% |
| 64 | Lynn | 22.1% |
| 65 | Ontario | 21.9% |
| 66 | Newark | 21.7% |
| 67 | Inglewood | 21.6% |
| 68 | Baytown | 21.4% |
Residents aged 3+ enrolled in college or graduate school (2020-2024)
Ontario ranks 180 of 823, highest first.
| Rank | City | Residents aged 3+ enrolled in college or graduate school |
|---|---|---|
| 177 | West Sacramento | 8.6% |
| 178 | Pomona | 8.6% |
| 179 | Jackson | 8.5% |
| 180 | Ontario | 8.5% |
| 181 | Bellflower | 8.5% |
| 182 | Downey | 8.5% |
| 183 | Austin | 8.5% |
More on Ontario: overview · economy and jobs · health · poverty and living standards · government budget · all cities in the United States
Sources
- U.S. Census Bureau: American Community Survey 2020-2024 5-year estimates, table B15003: Educational Attainment for the Population 25 Years and Over (Summary File rows for the US, the states and the listed cities, copied unchanged from the full file, sha256 d0c8609e958022459215c8a31d7452ef7528ee8dd70fbb6f9a99de0f491f42d7), read 23 October 2026 · saved copy (SHA-256 609deae49c91…)
- U.S. Census Bureau: American Community Survey 2020-2024 5-year estimates, table B14001: School Enrollment by Level of School for the Population 3 Years and Over (Summary File rows for the US, the states and the listed cities, copied unchanged from the full file, sha256 e175af4a33616da45fb590da3d67f37eee65a3cb51e6f5864c64ff31fb716b81), read 23 October 2026 · saved copy (SHA-256 b85f52a6d640…)
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