
The Cucamonga Valley is a region in southwestern San Bernardino County and northwestern Riverside County in southern California. It is between Los Angeles and San Bernardino.
| Counties | |
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| Major cities | |
| Cities and towns 100k+ | |
| Cities and towns 25k–100k | |
| Cities and towns 10k–25k | |
| Cities and towns under 10k | |
| Regions | |