Ohio.
Here, 3 of the federal campgrounds, 21%, still take walk-ups of the 14 whose booking the agencies publish. The other 7 publish nothing either way.
See Ohio on the mapFirst-come Reservable · every dot is a campground in its place
21 campgrounds
Leith RunReservableOpenfrom $152 pull-through sites21 sitesrigs to 90 ft610 ft541 ft to Leith Runhookupsdrinking watertoilets
Mill Creek Camping (Berlin Lake)Reservablefrom $262 group sites306 sitesrigs to 82 ft1,040 ft568 ft to Berlin Lakehookupstoiletsshowers
Iron Ridge - Lake VesuviusReservablefrom $154 walk-in sites11 hike-in sites33 sitesrigs to 58 ft770 fthookupsdrinking watertoilets
Oak Hill - Lake VesuviusReservablefrom $2022 with a tent pad8 pull-through sites32 sitesrigs to 64 ft870 fthookupstoilets
Lake Vesuvius Recreation AreaReservableSites from $351 group site1 site580 ft138 ft to Storms Creekhookupsdrinking watertoilets
Alum Creek Below Dam AreaReservable3 group sites830 ft411 ft to Alum Creekhookupsdrinking watertoilets
Caesar Creek LakeReservableSites from $355 group sites750 ft105 ft to Caesar Creekhookups
Cj Brown Dam and Reservoir - Dam Site (OH)ReservableSites from $353 group sites1,060 ft515 ft to Clarence J Brown Reservoirhookupsdrinking watertoilets
Michael J. Kirwan Damsite Recreation AreaReservableSites from $282 group sites
Paint Creek Dam SiteReservable2 group sites850 ft255 ft to Paint Creek Lakehookupsdrinking watertoiletsLane Farm CampgroundOpenfrom $10610 ft206 ft to Little Muskingum RiverBurr Oak Cove CampgroundFirst-comefrom $10870 ftIron Ridge Campgroundfrom $15860 ftdrinking waterLamping Homestead Recreation Areafrom $10750 ft212 ft to Lamping Homestead Picnic Grounds PondMohawk Dam CampgroundFirst-come820 ft315 ft to Walhonding RiverNorth Branch Kokosing River Lake - CampgroundFirst-come1,170 ft315 ft to North Branch Kokosing RiverOak Hill Campgroundfrom $20860 fttoiletsshowersPine Knob Loopfrom $20880 ftRing Mill Campgroundfrom $10690 ft145 ft to Little Muskingum RiverTwo Point Group Campground850 ftWilliam H Harsha Lake DamReservable2 group sites850 ft293 ft to pondhookupsdrinking watertoiletsUnits in Ohio
1 with campgroundsSource: USGS Protected Areas Database of the United States (PAD-US) land units
Source: campground records from RIDB, NPS, USFS EDW and BLM, unified by CAMPANAC, refreshed nightly