Ohio State Parks · Ohio

Cowan Lake State Park

Ohio State Parks · Ohio, United States

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Sites
245
Hookups
228 electric, 46 with water, 17 no hookups
Max RV length
59 ft
Group sites
Yes
Drinking water
Yes
Restrooms
Yes
Showers
Yes
Dump station
Yes
Pets
Yes
Elevation
1,037 ft
Dark sky
Bortle class 4
Cell coverage
T-Mobile weak · AT&T good · Verizon good (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
Lake
Cowan Lake
Nearest town
Wilmington
Address
1750 Osborn Rd., Wilmington, OH 45177
Phone
(937) 383-3751
Activities
Camping, Group Camping

268 numbered sites are mapped one by one - open the site map to pick yours.

About

Cowan Lake State Park's campground offers 245 sites in all, including 46 full-hookup and 182 electric-only. 22 cabins, 1 group camping site are also available. On-site amenities include a swimming beach, a disc golf course, basketball courts, a playground.

Fees

Electric $39/night Apr 1-Oct 31, $35/night Nov 1-Mar 31; Full Service $52/night Apr 1-Oct 31, $35/night Nov 1-Mar 31; Non Electric $29/night Apr 1-Oct 31, $25/night Nov 1-Mar 31. A $6.50 reservation fee applies per booking.

Weather, month by month

MonthTypical highTypical lowColdest nightHottest dayYears with a night below 32°F
January34°22°-9°61°11 of 11
February41°25°2°67°11 of 11
March54°33°17°73°9 of 11
April65°45°25°81°3 of 11
May74°57°34°87°0 of 11
June80°61°48°93°0 of 11
July84°68°57°91°0 of 11
August81°68°55°90°0 of 11
September80°62°50°90°0 of 11
October63°46°32°81°0 of 10
November50°34°15°68°8 of 10
December42°28°-5°64°10 of 10

Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.

Nearby campgrounds

All public campgrounds in Ohio · Every state and province · Facts read from the operator 2026-08-25. Confirm fees, rules and current status with the operator before you go.