State Parks Near Decatur, Indiana

6 state park units lie within 50 miles of Decatur, including 3 parks across the line in Ohio. The closest is Ouabache State Park, about 13 mi southwest of town. 1 park is within 25 miles, close enough for an evening visit.

Closest park
Ouabache State Park13 mi southwest
Within 25 miles
1of 6 within 50 mi
With camping
63 with cabins
Dog-friendly
0pets allowed

State parks near Decatur, nearest first

Straight-line distance from central Decatur; driving distance is usually longer.

  1. Ouabache State Park

    13 miles southwest · Bluffton, Indiana · State Park

    The park supports historic sites, boating, swimming, fishing, and biking. Water access includes a swimming beach.

    1 alertCampingSwimmingHikingFishingBoating

    Hours, fees and rules for Ouabache State Park →

  2. Grand Lake St Marys State Park

    31 miles southeast · Celina, Ohio · State Park

    Water access includes a swimming beach, a swimming pool, a boat ramp, and a fishing pier. Camping is available: 5 camping areas, including RV sites, tent sites, primitive or hike-in sites, group camping, and showers.

    CampingCabins/lodgingSwimmingBoating

    Hours, fees and rules for Grand Lake St Marys State Park →

  3. Salamonie Lake

    37 miles west · Andrews, Indiana · Reservoir

    Visitors come for cross-country skiing, snowmobiling, horseback riding, ice fishing, and mountain biking. Water access includes a swimming beach, a boat ramp, and a fishing pier.

    1 alert304 campsitesSwimmingHikingFishingBoating

    Hours, fees and rules for Salamonie Lake →

  4. Chain O'Lakes State Park

    43 miles northwest · Albion, Indiana · State Park

    Popular activities here are cross-country skiing, ice fishing, historic sites, winter sports, and canoeing and kayaking. On the water side, there is a swimming beach, a boat ramp, a fishing pier, and boat or kayak rentals.

    1 alert426 campsitesCabins/lodgingSwimmingHikingFishingBoating

    Hours, fees and rules for Chain O'Lakes State Park →

  5. Lake Loramie State Park

    45 miles southeast · Sidney, Ohio · State Park

    Facilities for water recreation include a swimming beach, a boat ramp, a fishing pier, and boat or kayak rentals. Camping is available: 3 camping areas, including tent sites and group camping.

    CampingCabins/lodgingSwimmingBoating

    Hours, fees and rules for Lake Loramie State Park →

  6. Independence Dam State Park

    47 miles northeast · Defiance, Ohio · State Park

    Facilities for water recreation include a boat ramp. Camping is available: campsites, including tent sites.

    CampingBoating

    Hours, fees and rules for Independence Dam State Park →

Best picks by activity

Camping near Decatur

  1. Ouabache State Park 13 mi southwest · Campground listed
  2. Grand Lake St Marys State Park 31 mi southeast · Campground listed
  3. Salamonie Lake 37 mi west · 304 campsites
  4. Chain O'Lakes State Park 43 mi northwest · 426 campsites
  5. Lake Loramie State Park 45 mi southeast · Campground listed

+ 1 more in the list above

Cabins and lodging near Decatur

  1. Grand Lake St Marys State Park 31 mi southeast · Cabins or other roofed stays
  2. Chain O'Lakes State Park 43 mi northwest · Cabins or other roofed stays
  3. Lake Loramie State Park 45 mi southeast · Cabins or other roofed stays

Swimming near Decatur

  1. Ouabache State Park 13 mi southwest · Beach, pool or swim area
  2. Grand Lake St Marys State Park 31 mi southeast · Beach, pool or swim area
  3. Salamonie Lake 37 mi west · Beach, pool or swim area
  4. Chain O'Lakes State Park 43 mi northwest · Beach, pool or swim area
  5. Lake Loramie State Park 45 mi southeast · Beach, pool or swim area

Hiking near Decatur

  1. Ouabache State Park 13 mi southwest · Hiking trails listed
  2. Salamonie Lake 37 mi west · Hiking trails listed
  3. Chain O'Lakes State Park 43 mi northwest · Hiking trails listed

Fishing near Decatur

  1. Ouabache State Park 13 mi southwest · Fishing listed
  2. Salamonie Lake 37 mi west · Fishing listed
  3. Chain O'Lakes State Park 43 mi northwest · Fishing listed

Questions about state parks near Decatur

What is the closest state park to Decatur?

Ouabache State Park is the closest, about 13 miles southwest of Decatur in a straight line. Next are Grand Lake St Marys State Park and Salamonie Lake.

How many state parks are near Decatur?

6 state park units are within 50 miles, and 1 within 25 miles. That includes parks, recreation areas, historic sites and natural areas run by the state.

Which state parks near Decatur have camping?

6 parks list camping, the nearest being Ouabache State Park, Grand Lake St Marys State Park and Salamonie Lake. Check each park page for site types, hookups and how to reserve.

Are dogs allowed at state parks near Decatur?

None of the parks listed here say dogs are allowed. Check each park page before bringing a pet.

Are there free state parks near Decatur?

None of the nearby parks list free entry; most charge a daily vehicle fee or accept an annual pass. Fees are on each park page.

State parks near other cities

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Built from official park data and updated as parks change; this list was last rebuilt Oct 30, 2026. Features shown are those the official source lists. Filter these parks on the map.