St. Croix River Wisconsin fishing license: border water rules, proof, refuge zones and species limits
The St. Croix River can be simple if you know the border-water rule before launching. Wisconsin residents need a Wisconsin license, Minnesota residents need a Minnesota license, and nonresidents may use either state’s license on the shared border-water section—but you must carry valid license proof and follow the right river regulations.
Quick answer: can a Wisconsin fishing license be used on the St. Croix River?
Yes, a Wisconsin resident must use a Wisconsin fishing license to fish the Minnesota-Wisconsin border-water portion of the St. Croix River. Minnesota residents must use a Minnesota license. Nonresidents of both Wisconsin and Minnesota may use either a Minnesota or Wisconsin license on the border-water section.
The license is good from shoreline to shoreline on border waters, but this does not mean “no rules.” You must carry valid license proof, know whether you are upstream or downstream of the border-water starting area, check St. Croix River species rules, and avoid closed refuge zones.
What this guide covers
St. Croix River license checker
Use this before you decide which license to buy or which regulation guide to read.
St. Croix River border-water license rules
| Angler | License needed on border waters | Plain-English meaning | Mistake to avoid |
|---|---|---|---|
| Wisconsin resident | Wisconsin fishing license | A Wisconsin resident cannot choose a Minnesota license just because the boat launched on the Minnesota side. | Buying the wrong state license. |
| Minnesota resident | Minnesota fishing license | Minnesota residents must carry a Minnesota license while fishing border waters. | Assuming a Wisconsin license is interchangeable for a Minnesota resident. |
| Resident of another state | Minnesota or Wisconsin license | A nonresident of both states can use either state’s license on the border-water section. | Buying both when one valid border-water license may be enough for that section. |
| Child under 16 | No Wisconsin license required for kids under 16 | Kids still follow the same fishing regulations and their own bag limits. | Thinking no license means no rules. |
| Adult helping a child | Adult license needed if the adult actively fishes | Casting, reeling, holding the rod or taking over means the adult is fishing. | Helping without a license. |
Wisconsin license options for St. Croix River anglers
Use this if you are buying through Wisconsin Go Wild. Minnesota license prices are separate and should be checked through Minnesota DNR if you choose a Minnesota license.
| Wisconsin license type | Official price listed | Good for | St. Croix tip |
|---|---|---|---|
| Resident annual fishing | $20 | Wisconsin residents fishing multiple days. | Best value for Wisconsin residents who fish the St. Croix often. |
| Resident 1-day fishing | $8 | Trying fishing for one day. | Can be upgraded toward annual for the listed upgrade amount. |
| Resident junior 16/17 | $7 | Wisconsin resident anglers age 16 or 17. | Teens 16+ generally need a license even on family trips. |
| Resident senior 65+ | $7 | Wisconsin resident seniors age 65 or older. | Carry valid proof on the river. |
| Nonresident annual | $55 | Nonresidents fishing Wisconsin often. | Nonresidents of both WI and MN may compare this with Minnesota options. |
| Nonresident 1-day, 4-day, 15-day | $15, $29, $33 | Short visits. | Choose based on trip length and where else you will fish. |
| Inland Trout Stamp | $10 | Inland trout waters where required. | The St. Croix border-water trip may not be a trout-stamp trip, but nearby trout streams can be. |
License proof: copy required, driver license not enough
For the St. Croix border water, the National Park Service says anglers must have a copy of the license in possession showing fishing endorsement and valid dates. It also says a driver license will not be accepted.
| Proof item | Use on St. Croix border water? | Practical advice |
|---|---|---|
| Printed fishing license copy | Yes | Best simple proof. Keep it dry in a zip bag. |
| Hard-copy reprint | Yes | Use Go Wild reprint, DNR Service Center reprint or license agent reprint if original is lost. |
| Phone PDF or screenshot | Risky as only proof | Use as backup, but carry a physical copy for border-water confidence. |
| Driver license only | No | NPS specifically says driver license will not be accepted for border-water fishing proof. |
| Conservation Card only | Do not rely on it alone | Border-water/outlying-water proof is stricter than many inland-water proof situations. |
Know your St. Croix River section before fishing
The biggest St. Croix mistake is assuming the whole river uses the same license and regulation setup. The river changes legal character by section.
| River section | Official context | License / rule warning |
|---|---|---|
| Upper St. Croix upstream of the border-water start | NPS says the state boundary begins about 2.5 miles downstream of Riverside Landing; upstream of that point, the St. Croix flows in Wisconsin. | Use Wisconsin rules, not Minnesota-Wisconsin border-water shortcuts. |
| Namekagon River | NPS says the entire Namekagon River is in Wisconsin. | Wisconsin license and Wisconsin regulations apply. |
| Border-water St. Croix | The St. Croix forms the Minnesota-Wisconsin boundary for much of its length. | License reciprocity helps, but you still must follow the correct regulations and proof rules. |
| St. Croix Falls / Taylors Falls area | DNR established a fish refuge from the St. Croix Falls dam to the upstream side of the Highway 8 bridge from March 1 through June 15. | Fishing is not allowed in the refuge during the closed period. |
| Prescott area near Mississippi River | Confluence and boundary-water interactions can affect rules and inspections. | Check the exact section and landing state before keeping fish. |
St. Croix River species rules highlighted by Wisconsin DNR
Wisconsin DNR announced St. Croix River rule changes effective March 1, 2024. These are important starting points for 2026 planning, but always confirm the current Wisconsin and Minnesota regulation guides before harvesting fish.
| Species | St. Croix rule listed by WI DNR | Beginner warning |
|---|---|---|
| Walleye and sauger | Daily bag limit of four walleye or sauger total; 15-inch minimum length for walleye; no minimum length for sauger; only one walleye or sauger over 20 inches may be kept per day. | Measure walleye carefully and count walleye/sauger together. |
| Northern pike | No minimum length limit; daily bag limit of three; only one over 30 inches may be kept per day. | The one-over-30-inch rule is easy to miss. |
| Channel catfish | No minimum length limit; daily bag limit of five; only one over 24 inches may be kept per day. | Channel and flathead catfish have different limits. |
| Flathead catfish | No minimum length limit; daily bag limit of two; only one over 24 inches may be kept per day. | Do not combine flathead and channel catfish limits incorrectly. |
| Panfish | Daily bag limit of 15 of each panfish species: bluegill/sunfish combined, crappie and yellow perch. | This is not a simple statewide 25-panfish assumption. |
| White and yellow bass | No minimum length limit; daily bag limit of 10 white and yellow bass combined. | Count white and yellow bass together. |
| Smallmouth bass | Use the current border-water regulation guide before keeping bass. | The Riverway is famous for smallmouth, but fame is not a harvest rule. |
St. Croix Falls fish refuge: March 1-June 15
Wisconsin DNR says the St. Croix River fish refuge spans from the State Highway 8 bridge upstream to the St. Croix Falls Dam and is effective from March 1 through June 15. Fishing is not allowed in that refuge during the closed period.
St. Croix River from State Highway 8 bridge upstream to the St. Croix Falls Dam.
March 1 through June 15 each year unless updated by future regulation changes.
DNR announced the refuge as a spawning-fish protection measure.
Do not fish this section during the closure. Check maps, signs and current DNR regulation language.
Lake sturgeon rules on the St. Croix River
Lake sturgeon rules are highly section-specific on the St. Croix River. Do not fish for or harvest sturgeon based only on memory or old advice.
| Sturgeon section | DNR season language | What anglers should do |
|---|---|---|
| St. Croix River downstream of St. Croix Falls | Harvest from first Saturday in September through Sept. 30; Oct. 1-Oct. 15 catch and release only. | Check current tag, harvest and registration requirements before targeting sturgeon. |
| St. Croix River upstream from the dam at St. Croix Falls | No open season listed in DNR boundary/outlying sturgeon table. | Do not assume upstream sturgeon fishing is open. |
| St. Croix River from Prescott to Gordon Flowage | DNR lists June 16-March 1 catch and release only in boundary/outlying sturgeon language. | Read the exact current sturgeon page and special regulations before fishing. |
Boat ramps, landing state and catch inspection
NPS warns that when landing a boat, anglers will be inspected for catch by the state where they are landing. This is important on a river where the boat may fish border water and land on either the Minnesota or Wisconsin side.
| Trip situation | Risk | Best practice |
|---|---|---|
| Launch in Wisconsin, fish border water | Assuming Minnesota-side activity cannot affect inspection. | Carry license proof and follow the stricter/confirmed rule for the section you fish. |
| Launch in Minnesota, fish border water | Wisconsin resident carrying only Minnesota license. | Wisconsin residents should carry Wisconsin license proof. |
| Land on opposite state side | Catch may be inspected by the state where you land. | Know both state rules and keep a clear, legal catch count. |
| Multiple-species cooler | Over-limit fish due to combined species rules. | Separate and count walleye/sauger, catfish types, panfish and bass carefully. |
Bait, live fish and invasive species rules
St. Croix River anglers move between states, landings and connected waters, so bait and boat-cleaning rules matter. Wisconsin DNR reminds anglers to inspect boats, remove plants/animals, drain water, never move live fish and dispose of unwanted bait in the trash.
| Action | Rule / best practice | Why it matters on the St. Croix |
|---|---|---|
| Inspect boat/trailer | Remove attached aquatic plants and animals before launching and after loading. | The river is a connected system with heavy recreational use. |
| Drain water | Drain water from boats, motors and equipment. | Prevents moving invasive species or disease between waters. |
| Live fish | Never move live fish away from a waterbody. | Live fish movement can spread disease and invasive species. |
| Minnows | Buy minnows from a Wisconsin bait dealer if using Wisconsin rules; use leftover minnows only as allowed. | Bait rules can become confusing across state lines. |
| Live crayfish | NPS says live crayfish are prohibited as bait on the Riverway. | This is a Riverway-specific bait warning many beginners miss. |
Best St. Croix fishing trip planning workflow
Know if you are fishing upper Wisconsin-only water, the Namekagon, the border-water St. Croix, the St. Croix Falls refuge area or the Prescott/confluence area.
Wisconsin residents use Wisconsin license; Minnesota residents use Minnesota license; other nonresidents may choose either for border waters.
Carry a license copy with valid dates. Do not rely only on a driver license.
Read the current rule for walleye/sauger, catfish, pike, panfish, bass, sturgeon or the species you target.
Avoid the St. Croix Falls-Hwy 8 refuge from March 1-June 15 and check sturgeon closures carefully.
Remember your catch may be inspected by the state where you land the boat.
Inspect gear, drain water, never move live fish and dispose of unwanted bait in trash.
Common St. Croix River license and border-water mistakes
Wisconsin residents need Wisconsin license; Minnesota residents need Minnesota license on border waters.
NPS says a driver license will not be accepted as border-water fishing proof.
You still need to know which state and section rules apply.
Do not fish the refuge from the Highway 8 bridge upstream to the dam from March 1 through June 15.
Count walleye and sauger together under the St. Croix total limit.
Channel catfish and flathead catfish have different daily limits and one-over-24-inch restrictions.
Sturgeon rules vary by section and date. Verify before fishing.
Never release live bait or move live fish away from the waterbody.
Final St. Croix River fishing checklist
- Confirm whether you are on the border-water portion, upper Wisconsin-only St. Croix, Namekagon River or a refuge section.
- Wisconsin residents should carry a Wisconsin fishing license.
- Minnesota residents should carry a Minnesota fishing license.
- Nonresidents of both states may choose Wisconsin or Minnesota license on border waters.
- Carry a license copy showing valid fishing endorsement and dates.
- Do not rely on a driver license alone.
- Check St. Croix-specific walleye/sauger, catfish, northern pike, panfish and bass rules before keeping fish.
- Avoid the St. Croix Falls-Hwy 8 refuge from March 1 through June 15.
- Check lake sturgeon season and section rules before targeting or handling sturgeon.
- Remember catch may be inspected by the state where you land the boat.
- Do not use live crayfish as bait on the Riverway.
- Inspect boat and trailer, remove plants/animals, drain water and never move live fish.
- Use official Wisconsin DNR, Minnesota DNR and NPS Riverway pages for final legal confirmation.
St. Croix River fishing map orientation
This map is for broad orientation only. Use official Riverway maps, Wisconsin DNR, Minnesota DNR, local launch information and current signs before fishing or landing a boat.
Official action links
The key St. Croix border-water details are included above so this page does not behave like a middleman. Use these links only for final purchase, rule confirmation, maps, sturgeon details and legal checks.
St. Croix River Wisconsin fishing license FAQs
Can I fish the St. Croix River with a Wisconsin fishing license?
Yes, Wisconsin residents must carry a Wisconsin fishing license on the Minnesota-Wisconsin border-water portion of the St. Croix River. Nonresidents of both states may use either a Wisconsin or Minnesota license on border waters.
Can a Minnesota resident use a Wisconsin license on the St. Croix River?
No. On the border-water section, Minnesota residents must possess a Minnesota fishing license.
Can a nonresident use either state license?
Yes. A person who is not a resident of Wisconsin or Minnesota may possess either a Wisconsin or Minnesota license for the St. Croix border-water section.
Is the license valid from shoreline to shoreline?
Yes, NPS says Minnesota and Wisconsin fishing licenses are good from shoreline to shoreline of border waters, but anglers still must follow applicable regulations.
Can I use my driver license as proof?
No. NPS says anglers must have a copy of the fishing license with valid endorsement and dates, and a driver license will not be accepted.
Where does the St. Croix become a border water?
NPS says the state boundary begins about 2.5 miles downstream of Riverside Landing. Upstream of that point, the St. Croix flows in Wisconsin.
Is the Namekagon River a border water?
No. NPS says the entire Namekagon River is in Wisconsin, so Wisconsin rules and license requirements apply.
What is the St. Croix Falls fish refuge?
Wisconsin DNR says the refuge spans from the State Highway 8 bridge upstream to the St. Croix Falls Dam and is closed to fishing from March 1 through June 15.
What is the St. Croix walleye and sauger limit?
Wisconsin DNR lists a daily bag limit of four walleye or sauger in total, with a 15-inch minimum length for walleye, no minimum for sauger and only one walleye or sauger over 20 inches per day.
What is the channel catfish rule on the St. Croix?
Wisconsin DNR lists no minimum length, a daily bag limit of five channel catfish and only one channel catfish over 24 inches per day.
What is the flathead catfish rule on the St. Croix?
Wisconsin DNR lists no minimum length, a daily bag limit of two flathead catfish and only one flathead over 24 inches per day.
Can I fish for lake sturgeon on the St. Croix?
Only in specific sections and dates. DNR lists harvest downstream of St. Croix Falls from the first Saturday in September through Sept. 30, followed by catch and release Oct. 1-Oct. 15, with other St. Croix sturgeon sections having catch-and-release or no-open-season language.
Can I use live crayfish as bait on the St. Croix Riverway?
No. NPS says live crayfish are prohibited as bait on the Riverway.
Which state inspects my fish when I land the boat?
NPS warns that when landing a boat, your catch will be inspected by the state where you are landing.
Do kids need a Wisconsin license on the St. Croix?
Children under 16 do not need a Wisconsin fishing license, but they still have their own bag limits and must follow all fishing regulations.
Is this website the official Wisconsin DNR website?
No. This is an independent educational guide. Use Wisconsin DNR, Minnesota DNR and National Park Service Riverway pages for final license, boundary, regulation and legal confirmation.
Editorial verification
This page was reviewed against official Wisconsin DNR, Minnesota DNR and National Park Service resources on July 16, 2026. The review included St. Croix National Scenic Riverway fishing guidance, Minnesota-Wisconsin border-water license notes, Wisconsin fishing license fees, Wisconsin Go Wild proof guidance, St. Croix River 2024 regulation changes, fish refuge language, invasive species prevention guidance, lake sturgeon seasons and current Wisconsin fishing regulation resources.
Disclaimer: WisconsinFishingLicense.website is an independent educational website. It is not the Wisconsin Department of Natural Resources, Minnesota DNR, National Park Service, Go Wild, Wisconsin.gov or a government agency. Always verify final license, proof, border-water status, species rules, refuge closures, season dates, boat landing rules and bait restrictions through official sources before fishing the St. Croix River.