Fairfield vs Ontario
The short version
- Ontario is cheaper overall: prices in its metro run 2% lower than in the Fairfield area (BEA 2024).
- The median home costs $607,600 in Ontario and $624,300 in Fairfield.
- Households earn more in Fairfield ($101,895 vs $88,941 median).
- Ontario has the warmer winter: January highs of 68°F vs 57°F.
- Ontario has more scorching days: 93 a year at 90°F or hotter vs 60.
- Ontario is growing faster: +6.7% since 2020 vs +2.1%.
Side by side
| Fairfield, CA | Ontario, CA | |
|---|---|---|
| People | ||
| Population (2025) | 122,489 | 187,013 |
| Growth since 2020 | +2.1% | +6.7% |
| People per square mile | 2,945 | 3,741 |
| Median age | 36.9 | 33.5 |
| Bachelor's degree or higher | 27% | 23% |
| Money and housing | ||
| Median household income | $101,895 | $88,941 |
| Median home value | $624,300 | $607,600 |
| Home value to income | 6.1× | 6.8× |
| Median rent (with utilities) | $2,266 | $2,030 |
| Metro price level (US = 100) | 108.5 | 106.4 |
| Housing price level (US = 100) | 142.0 | 129.3 |
| $75,000 elsewhere equals | $81,400 | $79,800 |
| Homeowners | 61% | 58% |
| Top state income tax | 13.3% | 13.3% |
| Combined sales tax | 9.03% | 9.03% |
| Work and commute | ||
| Average commute (minutes) | 30.7 | 31.5 |
| Work from home | 12% | 9% |
| Take public transit | 1% | 1% |
| Unemployment (2020-24 avg) | 5.8% | 6.3% |
| Poverty rate | 10.2% | 12.4% |
| Weather | ||
| January high / low | 57° / 40° | 68° / 45° |
| July high / low | 90° / 58° | 94° / 65° |
| Precipitation per year | 25 in | 12 in |
| Snowfall per year | 0 in | 0 in |
| Days 90°F or hotter | 60 | 93 |
| Nights below freezing | 8 | 2 |
| Comfortable months | 6 | 8 |
| Risks, air and home prices | ||
| Natural hazard risk (FEMA, county) | Relatively High | Very High |
| FEMA risk score (lower is safer) | 97.0 | 99.8 |
| Good air days, 2025 | 99% | 7% |
| Home prices, past year | -0.7% | +0.8% |
| Home prices, past 5 years | +14.3% | +35.9% |
Highlighted cells are the better value where "better" is clear (lower prices, higher income, shorter commutes). Sources: Census Bureau 2025 estimates and ACS 2020-2024, BEA 2024, NOAA 1991-2020, Tax Foundation 2026.
Weather, month by month
Most comfortable months: Fairfield: March to June and October to November. Ontario: October to May.
Full monthly tables: Fairfield weather by month and Ontario weather by month.
What $75,000 is worth
A $75,000 salary in an average-priced US city buys about the same as $81,400 in Fairfield and $79,800 in Ontario. Moving from Fairfield to Ontario, you would need about $73,600 to match a $75,000 salary.
Moving between Fairfield and Ontario
IRS county-to-county migration, 2022 to 2023 tax years, for the counties that contain each city. See where else people move from Fairfield and Ontario.
Which would you pick?
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