We found 347 public water systems in Ottawa county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Ottawa County Regional Water District | Port Clinton | 17,348 | 32 | 3 |
| Port Clinton City | County of Ottawa | 6,056 | 0 | 9 |
| Oak Harbor Village | County of Ottawa | 4,615 | 0 | 3 |
| Oak Harbor Water Department | Oak Harbor | 4,000 | 0 | 0 |
| Odnr-east Harbor State Park Pws | Lakeside | 4,000 | 0 | 0 |
| Genoa Village | County of Ottawa | 2,800 | 0 | 8 |
| Ohio Adjgn Camp Perry | Port Clinton | 2,500 | 0 | 0 |
| Lakeside Association Pws | Lakeside | 2,300 | 0 | 0 |
| Carroll Water And Sewer | County of Ottawa | 2,288 | 0 | 6 |
| Supt,genoa Water Department | Genoa | 2,200 | 0 | 0 |
| Gem Beach Utility Co | Port Clinton | 2,000 | 0 | 0 |
| Crane Creek State Park | County of Ottawa | 2,000 | 0 | 0 |
| Millers Lime Kiln Dock Pws | County of Ottawa | 1,800 | 0 | 0 |
| Elmore Village | County of Ottawa | 1,421 | 0 | 8 |
| Portage-catawba Is Water | Port Clinton | 1,375 | 0 | 0 |
| Bay Point,inc. | County of Ottawa | 1,200 | 0 | 0 |
| Green Cove Condominiums | Oak Harbor | 1,200 | 0 | 0 |
| Perry's Partners Inc Pws | County of Ottawa | 1,200 | 0 | 0 |
| Mcdonalds Restaurant | County of Ottawa | 1,185 | 0 | 0 |
| Mgr,crane Creek State Park | County of Ottawa | 1,000 | 0 | 0 |
| Mgr,e.harbor State Park | County of Ottawa | 1,000 | 0 | 0 |
| Marblehead Village | County of Ottawa | 903 | 0 | 16 |
| Toledo Edison-davis Bess | Oak Harbor | 784 | 0 | 0 |
| Put-in-bay Village | County of Ottawa | 762 | 0 | 55 |
| Brush Wellman | Elmore | 725 | 0 | 0 |
| Winkes Landing | Port Clinton | 668 | 0 | 0 |
| St Hazards | County of Ottawa | 600 | 0 | 7 |
| Cedarlane Rv Park | County of Ottawa | 600 | 0 | 0 |
| Odnr-catawba Island St Park Pws | Port Clinton | 600 | 0 | 0 |
| Lakefront Marina | County of Ottawa | 592 | 0 | 0 |
| Floros Campground | County of Ottawa | 545 | 0 | 0 |
| Odnr-catawba Isle St Pk #2 | County of Ottawa | 500 | 0 | 0 |
| County Line Store | Port Clinton | 500 | 0 | 0 |
| Genoa Area High School | County of Ottawa | 483 | 0 | 0 |
| Sonnys Beach | County of Ottawa | 460 | 0 | 0 |
| Erie Industrial Park Assoc Llc Pws | County of Ottawa | 450 | 0 | 0 |
| Herl's Harbor Pws | Port Clinton | 440 | 0 | 0 |
| Lake Erie Utilities Comp | County of Ottawa | 400 | 0 | 57 |
| Mgr-wahlers Marina & Mhp | County of Ottawa | 400 | 0 | 0 |
| Mgr,wahler's Marina & Mhp-well | County of Ottawa | 400 | 0 | 0 |
| Come Sail Away Condos Pws | Oak Harbor | 400 | 0 | 0 |
| Allen Central Elem School | County of Ottawa | 383 | 0 | 0 |
| Catawba Point Assoc | Catawba | 366 | 0 | 0 |
| Mon-ami Restaurant | Port Clinton | 364 | 0 | 0 |
| Odnr-south Bass Island State Park | County of Ottawa | 350 | 0 | 0 |
| Paradise Acres | Oak Harbor | 344 | 0 | 0 |
| Plymouth Shore On The Ba | Marblehead | 330 | 0 | 0 |
| Shady Shores Camp-marina | County of Ottawa | 320 | 0 | 0 |
| Mariners Retreat Pws | Marblehead | 310 | 0 | 0 |
| Sweetwater Marina & Mhp | Marblehead | 305 | 0 | 0 |
| Channel Grove Marina | County of Ottawa | 305 | 0 | 0 |
| Pablos Restaurant & Cpgnd | County of Ottawa | 300 | 0 | 0 |
| Catawba Island Marina | County of Ottawa | 300 | 0 | 0 |
| Turtle Point Marina | County of Ottawa | 300 | 0 | 0 |
| Island Club Pws | County of Ottawa | 296 | 0 | 0 |
| Bar Harbor Marina-east | County of Ottawa | 276 | 0 | 0 |
| West Harbor Landings | Marblehead | 264 | 0 | 0 |
| Long Beach Association | Oak Harbor | 250 | 0 | 0 |
| Thirsty Duck East Tavern | County of Ottawa | 250 | 0 | 0 |
| African Safari Wildlife | County of Ottawa | 250 | 0 | 0 |
| West Harbor Lagoons Mhp | Marblehead | 244 | 0 | 0 |
| Marine/max By Treasure C | Port Clinton | 240 | 0 | 0 |
| Mikes Bay Front Camping | County of Ottawa | 225 | 0 | 0 |
| Catawba Moorings, Inc | Port Clinton | 223 | 0 | 0 |
| Penisula Restaurant | Marblehead | 218 | 0 | 0 |
| Kamp Kozy & Marina | Marblehead | 210 | 0 | 0 |
| Fishy Business, Inc Dba J.f. Walleye | County of Ottawa | 207 | 0 | 15 |
| Leisurewood Shores Subd | Port Clinton | 200 | 0 | 0 |
| Heineman Winery & Crystal Cave Pws | County of Ottawa | 200 | 0 | 0 |
| Brennans Steak & Seafood | County of Ottawa | 200 | 0 | 0 |
| Mgr Stokley Van-camp Inc | County of Ottawa | 200 | 0 | 0 |
| Fox Haven Marina-middle | Port Clinton | 200 | 0 | 0 |
| West Catawba Marina | Port Clinton | 200 | 0 | 0 |
| Dusty Lane Campground | County of Ottawa | 196 | 0 | 0 |
| Fox Haven Marina-north | Port Clinton | 195 | 0 | 0 |
| Foxhaven Marina | County of Ottawa | 192 | 0 | 0 |
| Shrocks Marina | County of Ottawa | 192 | 0 | 0 |
| Marine City | Marblehead | 190 | 0 | 0 |
| Grace Baptist Church- Oak Harbor | County of Ottawa | 188 | 0 | 24 |
| Shade Tree Country | Marblehead | 188 | 0 | 0 |
| Harbor Park Marina & Mhp | Port Clinton | 186 | 0 | 0 |
| Wilsons Beach Mhp | Marblehead | 186 | 0 | 0 |
| Turtle Point Marina | County of Ottawa | 185 | 0 | 0 |
| Turtle Point Marina-camp | Oak Harbor | 180 | 0 | 0 |
| River Retreat Camp Marina | County of Ottawa | 180 | 0 | 0 |
| Sleepy Hollow Camp | County of Ottawa | 180 | 0 | 0 |
| Foxs Den Campground Pws | County of Ottawa | 176 | 0 | 0 |
| Skyline View Park Inc | Port Clinton | 176 | 0 | 0 |
| Shrock's Marina,inc Pws | Marblehead | 176 | 0 | 0 |
| Carroll Elementary Sch | Oak Harbor | 175 | 0 | 0 |
| Harbor Haven Mhp | Marblehead | 175 | 0 | 0 |
| Carter Lumber | Port Clinton | 175 | 0 | 0 |
| Nugents Marina | County of Ottawa | 170 | 0 | 0 |
| Marina Restaurant Inc | County of Ottawa | 170 | 0 | 0 |
| Catawba Island Marina-s | Port Clinton | 165 | 0 | 0 |
| Johnny's Camp Marina | County of Ottawa | 160 | 0 | 0 |
| Castaway Harbor Camp | County of Ottawa | 160 | 0 | 0 |
| Shade Acres Campground And Rv Park | County of Ottawa | 150 | 0 | 24 |
| Grace Lutheran Church | County of Ottawa | 150 | 0 | 12 |
| St Peters Lutheran Church/preschool | County of Ottawa | 150 | 0 | 29 |
| Mgr.,bass Haven Marina | County of Ottawa | 150 | 0 | 0 |
| St John Lutheran Church | County of Ottawa | 150 | 0 | 0 |
| Crows Nest Restaurant | Marblehead | 150 | 0 | 0 |
| Fort Firelands | Marblehead | 150 | 0 | 0 |
| Bar Harbor Marina-west | County of Ottawa | 150 | 0 | 0 |
| Marblehead Harbor | County of Ottawa | 143 | 0 | 0 |
| Ernestos Restaurant | County of Ottawa | 138 | 0 | 9 |
| Country Keg Restaurant | County of Ottawa | 135 | 0 | 8 |
| St John Lutheran Church Rocky Ridge | County of Ottawa | 130 | 0 | 5 |
| Camp Sabroske | County of Ottawa | 130 | 0 | 0 |
| Kott Camp-marina | Marblehead | 128 | 0 | 0 |
| Peninsula Rv Park | Marblehead | 128 | 0 | 0 |
| Catawba Inn | Port Clinton | 125 | 0 | 0 |
| Breezy Acres Mhp | Port Clinton | 125 | 0 | 0 |
| Oak Harbor Golf Club Pws | Oak Harbor | 125 | 0 | 0 |
| Cic Golf Club Pws | Port Clinton | 125 | 0 | 0 |
| Manager,breeze Acres | County of Ottawa | 124 | 0 | 0 |
| Rocky Point Marina-camp | Marblehead | 122 | 0 | 0 |
| Chippewa Golf Club | County of Ottawa | 120 | 0 | 0 |
| Mgr Lattimore Mhp | County of Ottawa | 120 | 0 | 0 |
| Rocky Ridge Elem School | County of Ottawa | 120 | 0 | 0 |
| Snug Harbor Marina & Cmp | Marblehead | 120 | 0 | 0 |
| Willow Cove Marina | County of Ottawa | 120 | 0 | 0 |
| Harbor Winds Trailer Court Pws | Marblehead | 120 | 0 | 0 |
| Skyway Restaurant, Llc | County of Ottawa | 119 | 0 | 0 |
| Greenwood Mobile Home Pk | County of Ottawa | 115 | 0 | 0 |
| Supt,luthern Home Of Mercy | County of Ottawa | 114 | 0 | 0 |
| Horny Toad Mexican Grill & Cantina Pws | Put-in-bay | 110 | 0 | 0 |
| Donnybrook Estates Condo Assoc | County of Ottawa | 108 | 0 | 0 |
| Neds Ledge Camp | County of Ottawa | 105 | 0 | 0 |
| Catawba Shores Condo Assoc Pws | Port Clinton | 105 | 0 | 0 |
| Dairy At The Dock | Port Clinton | 104 | 0 | 0 |
| Catawba Elementary Scl. | Port Clinton | 102 | 0 | 0 |
| Crazy Lady Saloon | County of Ottawa | 100 | 0 | 0 |
| Bethel United Brethren Church | County of Ottawa | 100 | 0 | 0 |
| Orchard Isle Mhp #1 | Port Clinton | 100 | 0 | 0 |
| Grace Baptist Church | Port Clinton | 100 | 0 | 0 |
| Charles Jones Green Camp Amlc | County of Ottawa | 100 | 0 | 0 |
| Mrblhd/dnbry Sr Cit Ctr | Lakeside-marblehead | 100 | 0 | 0 |
| Stokely Van-camp Migrant Camp | County of Ottawa | 100 | 0 | 0 |
| Fox Haven Marina-south | Port Clinton | 100 | 0 | 0 |
| Enchanted Lake Forest | County of Ottawa | 100 | 0 | 0 |
| L-n Camp | County of Ottawa | 100 | 0 | 0 |
| Mgr,wahler's Marina & Mhp-dock | County of Ottawa | 100 | 0 | 0 |
| The Point Pws | Port Clinton | 100 | 0 | 0 |
| Skyway Restaurant | County of Ottawa | 100 | 0 | 0 |
| Baby Barrel | Put-in-bay | 100 | 0 | 0 |
| Williston Camp | County of Ottawa | 100 | 0 | 0 |
| Nugents Canal Club | County of Ottawa | 99 | 0 | 0 |
| Marina Del-isle-marina Pws | Marblehead | 98 | 0 | 0 |
| Guardian Fab., Inc. | County of Ottawa | 97 | 0 | 0 |
| Penny Lane | County of Ottawa | 97 | 0 | 0 |
| United States Gypsum | County of Ottawa | 96 | 0 | 0 |
| Portage Cove Pk & Marina | North Royalton | 96 | 0 | 0 |
| Portage Cove Park Bthhse | North Royalton | 96 | 0 | 0 |
| Resurrection Lutheran Church Pws | Port Clinton | 90 | 0 | 0 |
| Treasurer Cove Marina | County of Ottawa | 90 | 0 | 0 |
| North Shore Estates Mhp | County of Ottawa | 88 | 0 | 0 |
| Toussaint Rest. & Lounge | County of Ottawa | 86 | 0 | 0 |
| Catawba Midway Marina | Port Clinton | 85 | 0 | 0 |
| Gem Trailer Court-west | Port Clinton | 84 | 0 | 0 |
| Anchors Away Marina | Marblehead | 84 | 0 | 0 |
| Lands End Marina | County of Ottawa | 84 | 0 | 0 |
| Blue Teal Mobile Home Park | County of Ottawa | 81 | 0 | 0 |
| Orchard Isle Condo #2 | Port Clinton | 80 | 0 | 0 |
| Highwarden Camp | County of Ottawa | 80 | 0 | 0 |
| Walleyes Rv Park | Port Clinton | 80 | 0 | 0 |
| Bassett's Iga-port Clinton | County of Ottawa | 80 | 0 | 0 |
| Manager,allen Park-mhp | County of Ottawa | 78 | 0 | 0 |
| 20th Century Lanes | County of Ottawa | 78 | 0 | 0 |
| Skippers Marina & Resort | County of Ottawa | 76 | 0 | 0 |
| Behlke's Mobile Home Park | Marblehead | 75 | 0 | 0 |
| Windjammer Restaurant | Marblehead | 75 | 0 | 0 |
| West Catawba Marina | Port Clinton | 75 | 0 | 0 |
| Eberly's Pws | Port Clinton | 75 | 0 | 0 |
| Put-in-bay Twp Airport | Put-in-bay | 75 | 0 | 0 |
| Skippers Resort | Marblehead | 74 | 0 | 0 |
| Hille/rothert Amlc | County of Ottawa | 72 | 0 | 0 |
| Orchard Inn | County of Ottawa | 72 | 0 | 0 |
| Catawba Shores M H Court | County of Ottawa | 70 | 0 | 0 |
| King Coach House Estates | Marblehead | 70 | 0 | 0 |
| Catawba Shores N Condo Pws | Port Clinton | 70 | 0 | 0 |
| Dry Dock Saloon Pws | Marblehead | 68 | 0 | 0 |
| Lakevue Marina | Marblehead | 66 | 0 | 0 |
| Sugar Creek Golf Club | County of Ottawa | 65 | 0 | 0 |
| Mgr,skyline View M.h.p. | County of Ottawa | 65 | 0 | 0 |
| Otc-elmore Mb 3 | Elmore | 65 | 0 | 0 |
| Inland Mobile Home Park | Oak Harbor | 64 | 0 | 0 |
| North Coast Canal Subdiv | Marblehead | 63 | 0 | 0 |
| Limestone Tavern | County of Ottawa | 60 | 0 | 0 |
| North Point Education Service Ctr Ottawa | County of Ottawa | 60 | 0 | 0 |
| Catawba Twp Hall | County of Ottawa | 60 | 0 | 0 |
| Tim And Deannas | County of Ottawa | 60 | 0 | 0 |
| Commodore Bay Assoc. | Marblehead | 60 | 0 | 0 |
| Harbor Winds Trailer Court Pws | Marblehead | 60 | 0 | 0 |
| Mgr,burgundy Bay | County of Ottawa | 60 | 0 | 0 |
| ZION UNITED CHURCH | County of Ottawa | 60 | 0 | 0 |
| Green Valley Mobile Home Park | County of Ottawa | 56 | 0 | 0 |
| Nat.bank Of Oak Harbor | County of Ottawa | 56 | 0 | 0 |
| Little Teds Cottages & R | Marblehead | 56 | 0 | 0 |
| Blackberry Corners | County of Ottawa | 55 | 0 | 0 |
| Luckey Homestead Farms Amlc Pws | County of Ottawa | 55 | 0 | 0 |
| Mgr,long Beach Assoc.,west Sys | County of Ottawa | 55 | 0 | 0 |
| Graymont Dolime (oh) | County of Ottawa | 54 | 0 | 0 |
| Wayside Inn Pws | Greytown | 54 | 0 | 0 |
| Bay Breeze Campground | Marblehead | 54 | 0 | 0 |
| Ohio State University - Stone Lab | County of Ottawa | 54 | 0 | 0 |
| Parcels Post Condo Assoc Pws | Port Clinton | 53 | 0 | 0 |
| Park Side Tavern | County of Ottawa | 52 | 0 | 0 |
| Harbor Mfg Company | County of Ottawa | 51 | 0 | 0 |
| Peninsula Motel | Lakeside | 51 | 0 | 0 |
| Tri Motor Sales | County of Ottawa | 50 | 0 | 0 |
| ZION UNITED METHODIST CHURCH -GRAYTOWN | County of Ottawa | 50 | 0 | 0 |
| Hanks On The Bay Rear Well | County of Ottawa | 50 | 0 | 0 |
| Jessie James Saloon | County of Ottawa | 50 | 0 | 0 |
| Weidner Labor Camp Amlc | County of Ottawa | 50 | 0 | 0 |
| Green Derby Tavern | Oak Harbor | 50 | 0 | 0 |
| Odnr-crane Creek St Pk #1 | County of Ottawa | 50 | 0 | 0 |
| Odnr-east Harbor St Pk #2 | County of Ottawa | 50 | 0 | 0 |
| Island Resort Dormitory | Put-in-bay | 50 | 0 | 0 |
| Denny's Pizza | County of Ottawa | 50 | 0 | 0 |
| Mgr,crane Creek State Park | County of Ottawa | 50 | 0 | 0 |
| Tibbels Mhp | Marblehead | 50 | 0 | 0 |
| Island Airlines | Port Clinton | 50 | 0 | 0 |
| Mystery Hill | County of Ottawa | 50 | 0 | 0 |
| Tibbels Marina | Marblehead | 50 | 0 | 0 |
| Schmidlin Hidden Harbor | Middle Bass Island | 50 | 0 | 0 |
| Bass Haven South Mhp | County of Ottawa | 50 | 0 | 0 |
| Gem Trailer Court-east | Port Clinton | 50 | 0 | 0 |
| Joes Bar Pws | County of Ottawa | 50 | 0 | 0 |
| Golden Pheasant Inn | Put-in-bay | 49 | 0 | 0 |
| Hasselkus Amlc | County of Ottawa | 48 | 0 | 0 |
| Mgr,catawba Woods Apartments | County of Ottawa | 48 | 0 | 0 |
| Lemarin Condominiums D-26,d-27 | County of Ottawa | 48 | 0 | 0 |
| Birds Nest Resort | County of Ottawa | 48 | 0 | 0 |
| Lemarin Condo-well F | Port Clinton | 47 | 0 | 0 |
| White Rock Quarry Lp | Clay Center | 45 | 0 | 0 |
| Bay Winds Mhp | Marblehead | 44 | 0 | 0 |
| Petersen's Cove Mhp Pws | Marblehead | 44 | 0 | 0 |
| Beachview Trailer Court | County of Ottawa | 44 | 0 | 0 |
| Mgr,danevang Subdivision | County of Ottawa | 44 | 0 | 0 |
| Colony Club Association | Oak Harbor | 44 | 0 | 0 |
| Idol Wild Acres | County of Ottawa | 44 | 0 | 0 |
| Baumans Camp | County of Ottawa | 44 | 0 | 0 |
| Harbor's End Pws | Marblehead | 44 | 0 | 0 |
| Bench, Robert Amlc Pws | County of Ottawa | 42 | 0 | 0 |
| Charles Jones Harris Salem Amlc | County of Ottawa | 42 | 0 | 0 |
| Baumann Chevrolet-oldsmobile | Oak Harbor | 42 | 0 | 0 |
| Bass Haven Resort | Marblehead | 41 | 0 | 0 |
| Beach Carte Restaurant | County of Ottawa | 40 | 0 | 0 |
| Pumpkin Seed Studio | County of Ottawa | 40 | 0 | 0 |
| Recker Amlc | County of Ottawa | 40 | 0 | 0 |
| Bitter Amlc #1 | County of Ottawa | 40 | 0 | 0 |
| Little Teds Cottages | County of Ottawa | 40 | 0 | 0 |
| Hidden Harbor Resort Inc | Port Clinton | 40 | 0 | 0 |
| Vollmer Camp | County of Ottawa | 40 | 0 | 0 |
| Holliday Marina Mhp | Marblehead | 38 | 0 | 0 |
| Johnston's Lakefront Cottages Pws | Middle Bass Island | 38 | 0 | 0 |
| Camp Runinmuck | Marblehead | 38 | 0 | 0 |
| Holiday Acres Mhp | Marblehead | 36 | 0 | 0 |
| Harder Amlc | Oak Harbor | 36 | 0 | 0 |
| Lemarin Cond A18,a19,a20 | County of Ottawa | 36 | 0 | 0 |
| Hanks On The Bay Front Well | County of Ottawa | 35 | 0 | 0 |
| Benchmore Farms Amlc 2 | County of Ottawa | 35 | 0 | 0 |
| Put In Bay Synergy Llc | County of Ottawa | 35 | 0 | 0 |
| Clintsters Pws | Put-in-bay | 35 | 0 | 0 |
| Rickards Bait & Tackle | County of Ottawa | 35 | 0 | 0 |
| Le Marin Condos A3, A4 | County of Ottawa | 35 | 0 | 0 |
| ZELLERS BEACH | Marblehead | 35 | 0 | 0 |
| West Harbor Club Mhp | Bellevue | 34 | 0 | 0 |
| West Harbor Cove & Marina | County of Ottawa | 34 | 0 | 0 |
| Bench-dickinson Amlc Pws | County of Ottawa | 33 | 0 | 0 |
| Boyer Amlc 1 Pws | County of Ottawa | 33 | 0 | 0 |
| Boyer Amlc 2 Pws | County of Ottawa | 33 | 0 | 0 |
| Ansted/neeb Amlc 1 | Elmore | 33 | 0 | 0 |
| Watering Hole Co., The | Port Clinton | 32 | 0 | 0 |
| Kilmer Lumber Company | County of Ottawa | 32 | 0 | 0 |
| Lemarin Condo-well G | Port Clinton | 32 | 0 | 0 |
| Lemarin Condo-well H | Port Clinton | 32 | 0 | 0 |
| Lemarin Condo-well E | Port Clinton | 32 | 0 | 0 |
| Bench-schulte Farms Amlc Pws | County of Ottawa | 30 | 0 | 0 |
| Benchmore Farms Amlc 1 | County of Ottawa | 30 | 0 | 0 |
| Rothert Amlc | County of Ottawa | 30 | 0 | 0 |
| Cottonwood Mhp | Marblehead | 30 | 0 | 0 |
| Lattimore's Mhp Pws | Marblehead | 30 | 0 | 0 |
| Catawba Is. Club-marina | Port Clinton | 30 | 0 | 0 |
| Corner Stone Inn | County of Ottawa | 30 | 0 | 0 |
| L Gruetter Migrant Camp | County of Ottawa | 30 | 0 | 0 |
| Hurdelbrink Amlc | Genoa | 30 | 0 | 0 |
| Overmyer/jones Amlc | Oak Harbor | 30 | 0 | 0 |
| Mgr R Sandrock Migrant Camp | County of Ottawa | 30 | 0 | 0 |
| Inland Marina Pws | Oak Harbor | 30 | 0 | 0 |
| Kerstens Korner Nursery School | County of Ottawa | 30 | 0 | 0 |
| Rendezvous Mhp | Parma | 30 | 0 | 0 |
| Edgewater Mhp | Marblehead | 30 | 0 | 0 |
| Le Marin Condos Marina | Port Clinton | 30 | 0 | 0 |
| Le Marin Condos A1, A2 | County of Ottawa | 30 | 0 | 0 |
| Gateway | County of Ottawa | 30 | 0 | 0 |
| Nas Inc. | County of Ottawa | 30 | 0 | 0 |
| Saunders Resort-south Pws | Put-in-bay | 30 | 0 | 0 |
| Victory Park Resort | Put-in-bay | 30 | 0 | 0 |
| Mar-lu Marina Inc. | Marblehead | 29 | 0 | 0 |
| Mgr Dale Gardner Migrant Camp | County of Ottawa | 28 | 0 | 0 |
| Edgewater Campground | County of Ottawa | 28 | 0 | 0 |
| Perry Holiday Motel | County of Ottawa | 28 | 0 | 0 |
| Lemarin Cond C11,c12 | County of Ottawa | 28 | 0 | 0 |
| Shaw's Country Corner | County of Ottawa | 27 | 0 | 0 |
| Mgr Lentz Bros Migrant Camp | County of Ottawa | 27 | 0 | 0 |
| Harbor Island Associatio | Port Clinton | 26 | 0 | 0 |
| Mgr,j Schlievert Migrant Camp | County of Ottawa | 26 | 0 | 0 |
| Juergens Amlc | Elmore | 26 | 0 | 0 |
| Mgr,wayne Fox Migrant Camp | County of Ottawa | 26 | 0 | 0 |
| Franks Korner | County of Ottawa | 26 | 0 | 0 |
| Cedar Creek Estates | County of Ottawa | 25 | 0 | 0 |
| Erie Islands Resort/marina | County of Ottawa | 25 | 0 | 0 |
| Elyria Methodist Home | Lakewood | 25 | 0 | 0 |
| National Alfalfa Mill | County of Ottawa | 25 | 0 | 0 |
| Mgr,e Siefke Migrant Camp | County of Ottawa | 25 | 0 | 0 |
| Odnr-magee Marsh Shop | County of Ottawa | 25 | 0 | 0 |
| Ottawa Nat Wildlife Ref1 | Oak Harbor | 25 | 0 | 0 |
| Ottawa Nat Wildlife Refuse #2 | County of Ottawa | 25 | 0 | 0 |
| African Safari Wildlife Park Admin | County of Ottawa | 25 | 0 | 0 |
| United States Gypsum | County of Ottawa | 25 | 0 | 0 |
| Floro's Marina And Campground Pws | Lacarne | 25 | 0 | 0 |
| Meadowbrook Rv Park | County of Ottawa | 25 | 0 | 0 |
| West Harbor Marina | County of Ottawa | 25 | 0 | 0 |
| Rays Restaurant | County of Ottawa | 25 | 0 | 0 |
| Mgr Ray Wehner Migrant Camp | County of Ottawa | 25 | 0 | 0 |
| Saunders Resort-north Pws | Put-in-bay | 25 | 0 | 0 |
| Harbor View Party Store | County of Ottawa | 25 | 0 | 0 |
| Mgr,bass Haven South M.h.p. | County of Ottawa | 25 | 0 | 0 |
| Clay Center Village Park | County of Ottawa | 25 | 0 | 0 |
| Jimmies Gotcha Restaurant | County of Ottawa | 25 | 0 | 0 |
| Middle Bass Town Hall | County of Ottawa | 25 | 0 | 0 |
| Carroll Township Hall | County of Ottawa | 25 | 0 | 0 |
| Goodman Amlc | County of Ottawa | 25 | 0 | 0 |
| Odnr - Oak Point Picnic Area Pws | Put-in-bay | 25 | 0 | 0 |
| Stagger Inn Pws | County of Ottawa | 25 | 0 | 0 |
| Manager,east Side Marina | County of Ottawa | 24 | 0 | 0 |
| Lamale Amlc | County of Ottawa | 20 | 0 | 0 |
| Maplewood Cove | Marblehead | 20 | 0 | 0 |
| Turtle Crk Ext Wat Sys | Oak Harbor | 17 | 0 | 0 |
| Blausey Amlc | Elmore | 12 | 0 | 0 |
| Harbor Grove Campground | Marblehead | 10 | 0 | 0 |
| Andy's Camp | County of Ottawa | 10 | 0 | 0 |
| Meier's Wine Cellar Amlc Pws | Isle Saint George | 9 | 0 | 0 |
| Mgr,s.bass Isl.st.park-1 | County of Ottawa | 5 | 0 | 0 |