Lake John Fishing Regulations
Jackson County, Colorado · 2026 size limits, bag limits, and seasons
Lake John is a lake in Jackson County, Colorado. It has its own fishing regulations for 7 species, including Brook Trout, Brown Trout, Cutthroat Trout, and Golden Trout. These rules replace Colorado's statewide limits on this water.
Map of Lake John
Fish with special rules on Lake John
Tap a fish for identification tips, size records, and the best bait.
Lake John limits by species (2026)
| Species | Size limit | Daily bag | Season |
|---|---|---|---|
 Brook Trout | – | 4 | Always open |
 Brown Trout | – | 4 | Always open |
 Cutthroat Trout | – | 4 | Always open |
 Golden Trout | – | 4 | Always open |
 Lake Trout | – | 4 | Always open |
 Rainbow Trout | – | 4 | Always open |
 Steelhead | – | 4 | Always open |
– means no limit is listed for this water. Rules not shown here follow Colorado's statewide regulations.
Plan your Lake John trip
Lake John fishing: common questions
What fish have special regulations on Lake John?
7 species have rules specific to Lake John: Brook Trout, Brown Trout, Cutthroat Trout, Golden Trout, Lake Trout, Rainbow Trout, and Steelhead.
What is the brook trout limit on Lake John?
No size limit is listed for Brook Trout on Lake John, and the daily bag limit is 4.
What is the brown trout limit on Lake John?
No size limit is listed for Brown Trout on Lake John, and the daily bag limit is 4.
What is the cutthroat trout limit on Lake John?
No size limit is listed for Cutthroat Trout on Lake John, and the daily bag limit is 4.
Do Colorado statewide fishing rules apply on Lake John?
Where Lake John has its own rule for a species, that rule replaces the statewide limit. For species not listed on this page, Colorado's statewide regulations apply. Regulations are set by the Colorado Parks and Wildlife; confirm with the official 2026 regulations before keeping a fish.
Other Colorado waters with special regulations
- South Platte River
- Yampa River
- Colorado River
- White River
- Poudre River · Larimer
- Gunnison River
- Blue River · Grand, Summit
- Roaring Fork River
- Arkansas River · Chaffee , Lake , Fremont , Pueblo
- Animas River · La Plata
- Eagle River · Eagle
- Taylor River
Take Lake John rules on the water
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