Longmont, CO · population 99,818

Lakes and swimming beaches near Longmont

Longmont sits within reach of 7 lakes in this guide and 1 mapped swimming spot. The closest is Union Reservoir, about 3 miles out. Every page carries the water level where an agency publishes one, the current weather and the access points.

 Lakes near Longmont (7)

Water near Longmont

Lakes and swimming spots within reach.

Closest lakes to Longmont

Ordered by distance from the city center.

Colorado · Weld County

Union Reservoir

At roughly 717 acres, Union Reservoir is one of the lakes covered in Colorado. Its shoreline falls inside Weld County. It is…

Reservoir
Standley Lake

Colorado · Jefferson County

Standley Lake

Standley Lake is a 1,200-acre reservoir on the Big Dry Creek in Colorado. It lies in Jefferson County. City of Westminster…

Reservoir
Horsetooth Reservoir

Colorado · Larimer County

Horsetooth Reservoir

Horsetooth Reservoir is a 1,899-acre reservoir on the outflow = in Colorado. Its shoreline falls inside Larimer County.…

Reservoir
Grand Lake

Colorado · Grand County

Grand Lake

Grand Lake is a reservoir of some 507 acres on the outflow =, in Colorado. The lake is in Grand County. Town of Grand Lake / USBR…

Reservoir
Cherry Creek Reservoir

Colorado · Arapahoe County

Cherry Creek Reservoir

At roughly 880 acres, Cherry Creek Reservoir is one of the lakes covered in Colorado. It lies in Arapahoe County. Management is…

Reservoir
Lake Granby

Colorado · Grand County

Lake Granby

Lake Granby covers about 7,260 acres of the Colorado River in Colorado. The lake is in Grand County. Management is in the hands…

Reservoir1 beach
Chatfield Reservoir

Colorado · Douglas County

Chatfield Reservoir

Chatfield Reservoir is a reservoir of some 1,500 acres on the South Platte River, in Colorado. You will find it in Douglas…

Reservoir

Swimming spots near Longmont

Lake Granby

Surprise Beach

Grand County; 0.8 mi from the lake center.

USGS GNISSwimming

 Colorado overview · All lakes in Colorado