Outdoors
Lakes near Rancho Cucamonga
28 named lakes within 30 miles, nearest first, with a map and directions.
Lakes within 30 mi
28
Closest
10.8 mi
San Dimas Reservoir
Reservoirs
18
Worth the drive
Map
Map of 28 places loads as you scroll.
All lakes, nearest first
- 10.8miSan Dimas Reservoirreservoir
- 12.4miPuddingstone Reservoirreservoir
- 12.7miLake Norconian
- 14.2miPrado Reservoir
- 14.4miLake Evans
- 16.8miSan Gabriel Reservoirreservoir
- 17.1miMorris Reservoirreservoir
- 20.3miLake Mathewsreservoir
- 20.4miWalnut Canyon Reservoirreservoir
- 20.4miSanta Fe Lake
- 20.7miCrystal Lake
- 20.8miSilverwood Lakereservoir
- 21miLake Gregoryreservoir
- 21.7miSunnymead Ranch Lakereservoir
- 22miPoorman's Reservoirreservoir
- 22.2miAnaheim Lakereservoir
- 23.8miCaldwell Lake
- 23.9miIrvine Lakereservoir
- 23.9miCogswell Reservoirreservoir
- 24.5miPeters Canyon Reservoirreservoir
- 25.7miLake Arrowhead Reservoir
- 26.3miLee Lake
- 26.5miBaldwin Lake
- 27.2miLegg Lake
- 27.4miRattlesnake Reservoirreservoir
- 28.3miSeven Oaks Reservoirreservoir
- 28.9miEaton Canyon Reservoirreservoir
- 29.2miLake Perrisreservoir
Straight-line distance from the center of Rancho Cucamonga; driving and trail distances are longer.
Before you go
Many reservoirs are drinking-water supplies with no swimming or body contact. Look for a designated swim beach.
Green, scummy or paint-like water can be a toxic blue-green algae bloom. Keep kids and dogs out and check the county advisory.
Boat launches often need a day pass or inspection for invasive mussels, and anglers 16 and older usually need a state fishing license.
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Questions
What is the closest lake to Rancho Cucamonga?
San Dimas Reservoir, about 10.8 miles from the center of Rancho Cucamonga.
How many lakes are near Rancho Cucamonga?
28 named lakes are within 30 miles.
Are the lakes near Rancho Cucamonga natural?
18 of the 28 are reservoirs made by dams; the rest are mapped as natural lakes. Swimming rules differ, so check each one.
Sources: Wikidata and OpenStreetMap contributors (ODbL), checked 2026-11-08; photos from Wikimedia Commons under the licenses shown. Access, fees and conditions change; check before visiting.