Afton State Park
Afton State Park is a state park in Washington County. It was established in 1969. 8 lakes with water-quality readings are within 15 miles of the park, including Lake St Croix, Pool, O'Connors Lake.
Afton State Park is a Minnesota State Park covering an unrecorded acreage acres. State parks are the most heavily-developed of the public-land designations — campground, picnic, boat-launch, interpretive-center. 8 measured lakes are within easy reach of the park. Edith Lake has the lowest nutrient and algae readings of the set.
For visitors planning around water quality, the nearby-lakes list below is the practical tool: a park is only as good as the lake you intend to use it from, and the readings for that lake give you the clarity, nutrient, and algal-pressure context you need.
Next park nearby
Swipe left or right on this bar to open the next or previous park.
Official Resources
Nearby Lakes (within 15 mi)
Lakes closest to Afton State Park, weighted by size. Click a lake for its water-quality readings, fish species, and depth.
| Lake | County | Surface Area | Distance |
|---|---|---|---|
| Lake St Croix | Pierce | 8,393 acres | 5.8 mi |
| Pool | Washington | 8,393 acres | 6.5 mi |
| O'Connors Lake | Washington | - | 2.2 mi |
| Pool of Lake St Croix | Washington | 8,393 acres | 10.8 mi |
| Edith Lake | Washington | 81 acres | 5.3 mi |
| Spring Lake | Dakota | 1,494 acres | 10.8 mi |
| Colby Lake | Washington | 71 acres | 6.9 mi |
| Elmo Lake | Washington | 257 acres | 9.7 mi |
Other Parks in the Area
- Fort Snelling State Park— State Park, 19.4 mi
- William O'Brien State Park— State Park, 24.7 mi
- Frontenac State Park— State Park, 33.3 mi
- Interstate Park— State Park, 36.9 mi
Where to stay near Afton State Park
Compare cabins, hotels, and vacation rentals near Afton State Park — find a place to stay close to the park and its nearby lakes.
Top-rated places to stay near Afton State Park
Prices for Sep 18–20, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Afton State Park?
Get lake water-quality updates plus the best cabin & lodging deals near Afton State Park — straight to your inbox. No spam, unsubscribe anytime.
Source: EPA National Aquatic Resource Surveys, 2026.