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Mercer / Grove City KOA Holiday

Mercer-Grove City KOA offers a welcome respite in the western Pennsylvania countryside just one hour north of Pittsburgh.

Our campground is located just 3 miles from Exit 113 on I-79 and the Grove City Premium Outlets. Accommodations include large 50 amp pull-through RV sites, Patio Sites, tent sites and Log Cabin rentals. There's something for everyone  – from the heated swimming pool and playground to a stocked Kampstore and free Wi-Fi for your enjoyment. On Saturdays, in summer, the campground offers Amish baked goods, wagon rides and more. This is a pet friendly campground, so you are welcome to bring the whole family!

Your Hosts:
Sandy & Andrea Arnold


This park makes a great base camp to explore everything the region has to offer. Our friendly staff will help you find your way - whether it be shopping, dining, an outdoor adventure or a tour through Amish country.
Mercer/Grove City KOA is in Big Rigs Best Bets Campground Directory

User Reviews

jo ur

October 27, 2025

Awesome KOA and cool escape rooms. Near the Grove City Outlets in Mercer. All staff members are great to be around and make you feel welcomed. This weekend featured a trick or treat on Saturday night. We were unsure if we would ever visit another KOA after visiting the KOA in Erie. Look at my previous review before trying the KOA further north. I will never forget how bad they treat their visitors. The Mercer KOA receives a 10/10. The staff, campers and kids were great. We also were not afraid to go outside of our camper at quiet time like the Erie KOA, because we didnt want to get kicked out at 1200 at night. 🤣 Thank you Mercer KOA!

Beky Strouse

October 21, 2025

We camped here for our anniversary weekend to go to the outlets and just relax. Such a nice place. The staff are very friendly, welcoming, and helpful. Decent size store with needs and fun things. We had forgot a few things and the store thankfully had them, but if it didn’t we were close enough to other stores in the area which makes this a very convenient location!! They have local Amish bring baked goods on Saturdays which was nice and we had treats for Sunday morning breakfast. Then they held a campsite trick or treat. We enjoyed handing out candy to the kids as they came by with their families. Bathrooms are clean and our tent site was within a comfortable walking distance to one set of them. Thank you KOA for a fun and relaxing weekend!! We will be back again next season!!

Tia Thompson

October 11, 2025

Great KOA! Upon arrival check in was easy and customer service was great. Very family friendly. This time of year the it’s beautiful with colors, trees, birds, activities and Halloween fun. We only stayed a day but definitely worth coming back.

Mick P

August 29, 2025

This KOA is basically our home away from home and we love it. We have come to know the staff very well over the past 5 years since buying our camper. They are always so friendly and accommodating. The sites are always clean and well taken care of, and everyone goes the extra mile to make you feel welcome. If you are planning to stay in this area, I highly recommend this campground.

Isabelle Harpey

August 21, 2025

One night stop. Nice staff. Campground was clean, nice dog park. Didn’t get to use the pool. Clean restrooms. Pretty quiet. The site that was assigned to us (113) was hard access (turns) and not very leveled. We have a 47ft 5th wheel. If you want a big rig friendly spot maybe ask for a spot closer to the entrance (probably more than what we paid?)

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