Colorado Fishing Size Limits
Legal minimum sizes and daily limits for fishing in Colorado. Updated for 2026.
Colorado Fish Size Limits
Complete guide to legal fish sizes in Colorado. Find minimum sizes, slot limits, and daily limits for all regulated species. Updated for 2026.
Fish Species
3
With Size Limits
3
No Size Limit
0
Updated
2026
Fish Size Limits
3 species with minimum size requirements in Colorado
| Species | Size Limit | Daily Limit | Notes |
|---|---|---|---|
| | Varies by water | 4 | - |
| | Varies by water | 4 | - |
| | 15" minimum on most waters | 5 | - |
- Regulated species
- Rainbow Trout, Brown Trout, Walleye
- Minimum lengths
- Rainbow Trout Varies by water | Brown Trout Varies by water | Walleye 15" minimum on most waters
- Issuing agency
- Colorado Parks and Wildlife
Need the regulatory background? How fish size limits work covers minimums, slots, and proper measurement.
Colorado Fishing Regulations Overview
State fish and wildlife agency information
- Fish Species
- 3 species with regulations
- Species with Size Limits
-
- Rainbow Trout
- Brown Trout
- Walleye
- Fish & Wildlife Agency
- Colorado Parks and Wildlife
This information is for reference only. Always verify regulations with your state wildlife agency before hunting or fishing.
Last verified: January 2026
Colorado Fishing Size Limits FAQ
Common questions about fish size regulations in Colorado
What is the trout size limit in Colorado?
Colorado trout regulations: Varies by water. Daily limit is 4. Some waters may be catch-and-release only.
Which fish have size limits in Colorado?
Colorado enforces size limits on 3 species including: Rainbow Trout (Varies by water), Brown Trout (Varies by water), Walleye (15" minimum on most waters). Always verify current regulations before fishing.
Other States
View fishing size limits for more states
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