
40 lakes with water-quality readings within 4 hr of downtown
Driving from Cincinnati to a lake worth swimming in
Doe Run Lake is the closest lake with water-quality readings to Cincinnati, 22 min away. Marysville Upground Reservoir has clear, low-nutrient readings and takes 2 hr 26 min, 2 hr 4 min more in the car, each way, for cleaner water.
Every lake below is ranked by how long the drive is, and each links to its own water-quality readings. Closest is not the same as cleanest, and this page will not pretend otherwise.
Closer, or cleaner — the whole ladder
40 lakes, sorted by drive time from downtown Cincinnati. 8 of them have clear, low-nutrient readings. Some of the best water is over a state line — this list crosses into Kentucky, Indiana. The furthest entry is Grayson Lake at 2 hr 56 min.
| Drive | Lake | Road miles | County | Size | Access |
|---|---|---|---|---|---|
| 22 min | Doe Run Lake | 10.6 | Kenton County, KY | 51 ac | ✓ Public |
| 36 min | Campbell County Lake | 19.8 | Campbell County, KY | 193 ac | ✓ Public |
| 41 min | Bullock Pen Lake | 28.9 | Boone County, KY | 150 ac | ✓ Public |
| 49 min | Boltz Lake | 36.7 | Grant County, KY | 92 ac | ✓ Public |
| 58 min | Williamstown Lake | 40.6 | Grant County, KY | 300 ac | ✓ Public |
| 1 hr 2 min | Caesar Creek Lake | 44.7 | Warren County, OH | 2,830 ac | ✓ Public |
| 1 hr 4 min | Corinth Lake | 51.8 | Grant County, KY | 96 ac | ✓ Public |
| 1 hr 5 min | General Butler State Park Lake | 54.7 | Carroll County, KY | 31 ac | ✓ Public |
| 1 hr 7 min | Kincaid Lake | 36.9 | Pendleton County, KY | 179 ac | ✓ Public |
| 1 hr 12 min | Lake Elmer Davis | 55.6 | Owen County, KY | 149 ac | ✓ Public |
| 1 hr 28 min | Benjy Kinman Lake | 65.3 | Henry County, KY | 50 ac | ✓ Public |
| 1 hr 28 min | Lake Jericho | 71.9 | Henry County, KY | 137 ac | ✓ Public |
| 1 hr 31 min | Brookville Lake | 54.8 | Union County, IN | 4,364 ac | ✓ Public |
| 1 hr 49 min | Buck Creek Lake | 85.2 | Clark County, OH | Not recorded | Not recorded |
| 1 hr 53 min | Lake Cannigo | 75.1 | Nicholas County, KY | 114 ac | ✓ Public |
| 1 hr 53 min | Long Run Lake | 91 | Jefferson County, KY | 27 ac | ✓ Public |
| 1 hr 54 min | Shelby Lake | 89.7 | Shelby County, KY | 57 ac | ✓ Public |
| 1 hr 57 min | Sand Lick Creek Lake | 83.2 | Fleming County, KY | 74 ac | ✓ Public |
| 1 hr 58 min | Winchester Reservoir | 102 | Clark County, KY | 90 ac | Not recorded |
| 2 hr 2 min | Guist Creek Lake | 93.7 | Shelby County, KY | 333 ac | ✓ Public |
| 2 hr 5 min | Lake Reba | 108.8 | Madison County, KY | 76 ac | ✓ Public |
| 2 hr 16 min | Taylor Fork Lake | 114.5 | Madison County, KY | 169 ac | ✓ Public |
| 2 hr 17 min | Beech Fork Reservoir | 118.7 | Powell County, KY | 61 ac | ✓ Public |
| 2 hr 22 min | Herrington Lake | 111.4 | Garrard County, KY | Not recorded | ✓ Public |
| 2 hr 26 min | Marysville Upground Reservoir | 112.3 | Union County, OH | Not recorded | Not recorded |
| 2 hr 26 min | Greenbrier Creek Reservoir | 120.7 | Montgomery County, KY | Not recorded | Not recorded |
| 2 hr 26 min | Owsley Fork Reservoir | 125.3 | Madison County, KY | 152 ac | ✓ Public |
| 2 hr 30 min | Grand Lake St Marys | 119 | Mercer County, OH | Not recorded | ✓ Public |
| 2 hr 30 min | Lost Creek Reservoir | 128.6 | Allen County, OH | Not recorded | Not recorded |
| 2 hr 35 min | Cordry Lake | 107.5 | Brown County, IN | 167 ac | Not recorded |
| 2 hr 36 min | O'Shaughnessy Reservoir Lake | 120.8 | Delaware County, OH | Not recorded | ✓ Public |
| 2 hr 38 min | Stanford Reservoir | 127.6 | Lincoln County, KY | 40 ac | Not recorded |
| 2 hr 42 min | Bresler Reservoir | 126.8 | Allen County, OH | Not recorded | ✓ Public |
| 2 hr 43 min | Hoover Reservoir | 130.6 | Delaware County, OH | Not recorded | ✓ Public |
| 2 hr 43 min | Cedar Creek Lake | 133 | Lincoln County, KY | 784 ac | ✓ Public |
| 2 hr 43 min | Campton Lake | 143.3 | Wolfe County, KY | 19 ac | Not recorded |
| 2 hr 44 min | Starve Hollow Lake | 107.3 | Jackson County, IN | 126 ac | Not recorded |
| 2 hr 47 min | Alum Creek Lake | 135.9 | Delaware County, OH | Not recorded | ✓ Public |
| 2 hr 49 min | Freeman Lake | 142.9 | Hardin County, KY | 160 ac | Not recorded |
| 2 hr 56 min | Grayson Lake | 127.8 | Carter County, KY | 1,510 ac | ✓ Public |
What the numbers are, and are not
Drive times and road miles are one-way road routing from downtown Cincinnati to the nearest public road at each lake, over the OpenStreetMap network via OSRM (router.project-osrm.org) over OpenStreetMap, driving profile, free-flow. Free-flow means no traffic model and no time of day, so a weekend morning will beat these numbers and a Friday afternoon will not.
Each lake’s water-quality readings, phosphorus, nitrogen, chlorophyll-a and turbidity measured over years by state and federal agencies, are on its own page. They describe the lake’s record; they do not clear the water for a particular afternoon, and they say nothing about the beach, the boat ramp or the view. Lakes with no nutrient or algae reading on record are not listed here, because the water is the only axis this page ranks on.
Size and access come from the lake record where the agency published them. “Not recorded” means nobody documented it — it is a gap in the paperwork, not a statement about the lake.
More lakes near Cincinnati
Nearby cities
Common questions
Frequently Asked Questions
Marysville Upground Reservoir in Union County, Ohio. Its nutrient and algae readings are among the most favourable within reach, and the drive is 2 hr 26 min, or 112.3 road miles. The closest lake of any kind with readings on record is Doe Run Lake at 22 min.
2 hr 4 min each way. Doe Run Lake is 22 min out; Marysville Upground Reservoir, with the more favourable readings, is 2 hr 26 min out.
30 of the 40 lakes here have a public access point on the record, and the closest is Doe Run Lake, 22 min away. The rest of the table shows "Not recorded" where no access point was documented, which is not the same as no access — check with the managing agency before you trailer a boat.
By road, from downtown Cincinnati to the nearest public road at each lake, over the OpenStreetMap road network. They are free-flow times: no traffic, no time of day, no stops. Treat them as the floor, and add for rush hour and for the last stretch to the water.
No. The readings summarise years of phosphorus, nitrogen, algae and turbidity measurements; they describe the lake, not this afternoon. A beach closure, a bloom, or a heavy rain can change conditions overnight. Whether a lake is safe to swim in is a call for the state water agency and the county health department: check the lake's own page for its measurement record, and check the managing agency for current advisories before you get in.
Stay by the water, not by the highway
Cabins, hotels and rentals around Marysville Upground Reservoir in Union County, the closest lake to Cincinnati with the most favourable readings in range. 2 hr 26 min from downtown.
Top-rated places to stay near Marysville Upground Reservoir
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