OhioReservoirDelaware County

Delaware Lake

Delaware Lake is a 1,300-acre reservoir on the Olentangy River in Ohio. You will find it in Delaware County. USACE Huntington District manages it.

Photo: Sixflashphoto · CC BY-SA 4.0 · Wikimedia Commons

CountiesDelaware County

Coordinates40.3739, -83.0553

Surface area1,300 acres

RiverOlentangy River

Managed byUSACE Huntington District

Swimming beaches on Delaware Lake

No named swimming beach is mapped yet for this lake. Access is through agency day-use areas and boat ramps listed below. We add beach pages only when we can confirm a name, coordinates and an operating agency.

Delaware Lake on the map

Lake center, swimming spots and access points.

Get directions

Weather and water temperature

Air temperature and wind from Open-Meteo. Water temperature only when the lake has a public sensor.

Weather data by Open-Meteo

Is Delaware Lake good for swimming?

On the map, Delaware Lake is centered near 40.3739, -83.0553. Water leaves through the Olentangy River.

Around Delaware Lake this guide maps 1 public recreation area. Recreation areas nearby include Delaware State Park. Facilities vary from one access point to the next, so check before you rely on one.

There is no water temperature sensor here, so only air conditions are shown. Season dates vary by park; the operating agency publishes them each spring. Algae blooms are seasonal and local: look for posted signs at the ramp or park entrance.

If Delaware Lake is busy, the nearest alternatives here are Alum Creek Lake (Ohio, 14 mi), O'Shaughnessy Reservoir (Ohio, 16 mi) and Hoover Reservoir (Ohio, 20 mi). Ohio has 35 lakes on this site in total.

For a lake this size, the park office is the fastest way to learn how the water sits today. There is no live level reading for Delaware Lake. The agencies that run this water do not publish one openly, and we do not estimate what has not been measured.

Recreation areas on Delaware Lake

1 public recreation areas mapped around the lake by the U.S. Army Corps of Engineers. Facilities vary by area; check the managing office for opening dates and fees.

Delaware State Park

Source: USACE Recreation Areas