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Loon Lagoon Introduce

For Wisconsinites who love to embrace the natural beauty of our state, finding a clean, well-kept, and welcoming campground is paramount. Nestled in the heart of Mercer, WI, Loon Lagoon stands out as a highly recommended destination for both RV and tent campers. This peaceful retreat offers a fantastic base for exploring the rich outdoor activities that Northern Wisconsin is famous for, from extensive bike trails to numerous lakes perfect for fishing and swimming.

Loon Lagoon has garnered a strong reputation for its meticulous upkeep and the dedication of its owners. Visitors consistently praise the cleanliness of the entire facility, from the campsites themselves to the laundry room and bathrooms. This attention to detail ensures a comfortable and pleasant stay, allowing you to focus on enjoying your outdoor adventure rather than worrying about the condition of your surroundings. While the lagoon itself might be described as weedy and mucky, the campground’s direct access to Grand Portage Lake and its proximity to many other beautiful lakes in the region more than make up for it, offering ample opportunities for water-based recreation.

What truly makes Loon Lagoon special for local campers is its incredibly dog-friendly atmosphere. If you're a proud pet owner, you'll find that your canine companions are not just tolerated, but celebrated here. This welcoming approach to pets adds another layer of comfort and enjoyment for many Wisconsin families. The combination of a pristine environment, excellent location for outdoor pursuits, and a genuinely friendly atmosphere makes Loon Lagoon a standout choice for anyone looking to experience the best of Wisconsin's Northwoods camping.

Loon Lagoon is conveniently located at 2580 Margaret St, Mercer, WI 54547, USA. This address places it just two blocks east of Highway 51 in Mercer, making it exceptionally easy to find and access for residents traveling from various parts of Wisconsin. Mercer itself is a renowned outdoor hub in Northern Wisconsin, known as the "Loon Capital of the World," which adds to the charm and recreational appeal of the area. The campground's location on the outlet of Grand Portage Lake offers direct access to water for boating and kayaking, further enhancing its accessibility for water enthusiasts.

For Wisconsinites, the ease of reaching Loon Lagoon is a significant advantage. Whether you're coming from Milwaukee, Madison, or closer northern cities like Minocqua or Hurley, the drive is straightforward. Furthermore, its placement in Mercer means campers are within walking distance of local stores and restaurants, providing convenience without sacrificing the feeling of being immersed in nature. This blend of remote tranquility and nearby amenities ensures that you can enjoy an "off-the-grid" experience while still having access to necessities. The direct connection to the greater Vilas County bike trail system from Mercer also means that cyclists can hit the trails immediately, maximizing their outdoor time. This prime location and excellent accessibility make Loon Lagoon an ideal choice for a stress-free and enjoyable camping trip for any Wisconsin local.

Services Offered:

  • RV and Tent Sites: Offers 40 sites, including RV pull-thrus and full hookup sites (water, sewer, electric) and tent sites.
  • Electrical Hookups: Available at sites, with 20/30 amp service.
  • Water Hookups: Provided at each site.
  • Sewage Drain/Sewer Hookups: Full hookups include sewage drain.
  • Laundry Room: A clean and well-kept laundry facility is available for guest use.
  • Bathrooms: Clean and well-maintained bathrooms are on-site.
  • Recreation Room: A communal recreation room is available.
  • Direct Lake Access: Direct access to Grand Portage Lake with the possibility of launching boats and kayaks.
  • Firewood: Wood for campfires is available for purchase.
  • Pet-Friendly: Highly dog-friendly, welcoming canine companions.
  • Playground: A playground is available for children.
  • Tables: Picnic tables are provided at campsites.
  • Dump Station: A dump station is available for grey and black water disposal.
  • Seasonal Operation: Open typically from May 1 to October 15.

Features / Highlights:

  • Exceptional Cleanliness and Maintenance: Consistently praised in reviews for being "very clean and well kept," including the sites, laundry room, and bathrooms, ensuring a comfortable stay.
  • Friendly and Helpful Owners: Guests frequently highlight the owners' helpfulness and friendliness, creating a welcoming and positive atmosphere.
  • Prime Location for Outdoor Activities: Situated near the Heart of Vilas County bike trail, providing direct access to miles of paved and rustic biking routes.
  • Abundance of Nearby Lakes: While Loon Lagoon's immediate waters are weedy, the campground offers direct access to Grand Portage Lake and is close to many other lakes in the area, ideal for fishing, swimming, and various water sports.
  • Dog-Centric Environment: Known as a place where "dogs are king," making it an excellent choice for pet owners who want to bring their furry friends along on their camping adventures.
  • Quiet and Peaceful Setting: Offers a serene atmosphere, perfect for getting away from noise and chaos, despite being within walking distance to Mercer's downtown area.
  • Full Hookup Availability: Provides the convenience of full hookups (water, electricity, sewer) at many RV sites, catering to comfort-seeking campers.
  • Community Feel: Reviews suggest a welcoming environment where seasonal campers are kind to weekenders, fostering a friendly community among guests.
  • Proximity to Mercer Amenities: Within walking distance to local stores, restaurants, and bars in Mercer, offering convenience for supplies and dining out.
  • Direct Water Access for Boating: Offers the significant advantage of direct lake access and boat/kayak launching capabilities.

Contact Information:

Address: 2580 Margaret St, Mercer, WI 54547, USA

Phone: (715) 476-2466

Mobile Phone: +1 715-476-2466

For Wisconsin locals, Loon Lagoon in Mercer represents an ideal camping destination that perfectly blends convenience with a genuine Northwoods experience. Its suitability for residents stems from its consistently high standards of cleanliness and maintenance, ensuring a hassle-free and enjoyable stay right here in our own state. You won't have to venture far to find a campground where the facilities are spotless and the environment is well-cared for, allowing you to truly relax.

The campground's prime location is another major draw. Nestled near the extensive Heart of Vilas County bike trail system and surrounded by countless lakes, it offers unparalleled access to some of Wisconsin's best outdoor recreation. Whether you're an avid cyclist, a passionate angler, or simply enjoy swimming and paddling, Loon Lagoon puts you at the center of it all. Furthermore, the incredibly dog-friendly atmosphere means that your beloved pets are not just accommodated but genuinely welcomed, making it a stress-free option for families traveling with their furry companions.

While a few reviews note the lack of cable TV and limited Wi-Fi, this can be seen as an advantage for those seeking to truly disconnect and immerse themselves in nature. The friendly and helpful owners contribute significantly to the positive atmosphere, fostering a sense of community that enhances the camping experience. For any Wisconsin local seeking a clean, well-located, and welcoming campground that embraces both people and their pets, Loon Lagoon offers a highly recommended and memorable escape into the heart of our state's beautiful Northwoods.

Location

WisconsinIron CountyMercerMargaret Street

Customer Reviews

4.0
68 reviews
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Lynne Oswald
Jun 23, 2025

This campground is very clean and well kept. It's a great location near the heart of vilas county bike trail, along with many lakes for fishing swimming and enjoying out doors (loon lagoon itself is weedy and mucky). The owners were generally friendly, but would not honor their weekly rate as advertised on their website. Also, there is no cable and no wifi so be prepared for only PBS if you dont have your own satellite.or Hotspot. Dogs are king at this campground, and if you dont have one be prepared to be told several times you should.

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Adrian Głód
Jun 12, 2024

I highly recommend this place. The owners were nice and helpful. The whole place is clean and well-kept. Electricity, water, sewage drain. laundry room, bathrooms, recreation room. Direct access to the lake. possibility of launching boats and kayaks. wood for a fire. dog-friendly place. We stayed 5 days. Our rating 10/10

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Thomas DeVito
Oct 12, 2024

Came by bike camping all the way from Denver. Early Spring, and they treated us real good. Great spot had everything we needed. A++ hosts.

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Tim Leuenberger
Aug 14, 2019

Just wanted to say thank you for the hospitality. Brenda and Gary are so nice and good spirited people. The campground is grate for kids and families with a game room fishing and plenty of room for the kids to run. The bathrooms are up to date and very clean. It is a beautiful place to spend some time and town is very close so it's easy to step out real quick and pick up any amenities that you may have forgotten. I hope I get back up this way to spend more time. I ❤️ Loon Lagoon.

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Lisha
Sep 30, 2021

Quite clean larger spots. Great free showers. Reasonably priced laundry too. Many of the sites are permanent but they have several for those who stop by. In the high summer you would need to book in advance. Friendly people and dog friendly too.