Interstate State Park

St. Croix Falls, Wisconsin · Campsite openings, cancellations & sold-out date alerts

State ParksWatched around the clock

Weekend availability

Live from Wisconsin State Parks · checked Sep 14, 7:25 PM PT
  • Fri, Sep 25
    Open
    1/1 campgrounds
  • Fri, Oct 2
    Open
    1/1 campgrounds
  • Fri, Oct 9
    Open
    1/1 campgrounds
  • Fri, Oct 16
    Open
    1/1 campgrounds
  • Fri, Oct 23
    Open
    1/1 campgrounds

Sold out for your dates? We'll tell you the second a site opens.

Cancellations at Interstate State Park get rebooked in minutes. We check Wisconsin State Parks around the clock and alert you before the crowd refreshes the page.

Set an alert for St. Croix Falls$9.99/mo — why we charge

Not ready to subscribe? Get a free weekend heads-up.

We'll email you if Interstate State Park opens up for a weekend you pick. No account needed.

Park type

State Parks

Wisconsin State Parks system

Online booking

Available on Wisconsin State Parks

Official state reservation system

Alert coverage

Checked around the clock

Openings, cancellations & new dates

Where Interstate State Park is

St. Croix Falls, WI 54024

45.3897, -92.6630

Get directions

Getting a campsite at Interstate State Park

How do I get a campsite at Interstate State Park when it's sold out?

Cancellations happen constantly — the trick is being first to know. Set an alert for your dates and we'll watch Interstate State Park on Wisconsin State Parks around the clock, then notify you the moment a site opens. Alerts run on a Pro subscription ($9.99/mo, cancel anytime).

When do campsites usually open up at Interstate State Park?

Whenever someone cancels. Most reservation systems refund less the closer you get to arrival, so cancellations cluster in the days before a stay — but the openings themselves are unpredictable, which is exactly why watching for them beats refreshing the page.

Where do I book a campsite at Interstate State Park?

Reservations for Interstate State Park are made on Wisconsin State Parks, the official booking system for Wisconsin State Parks. GetParkAlerts is independent — we tell you when a site opens; you book it directly on the official site.

Parks near Interstate State Park

Flexible on where you camp? Watch a few of these too — more parks, better odds.

All Wisconsin state parks →Browse all Wisconsin state parks →All Wisconsin camping — parks, federal & military →Open this weekend →Sold out this weekend →Wisconsin closures & advisories →See every Wisconsin park on the map →