KOA Lake - Boulder trout stocking
Boulder County, Colorado · lake · 5,183 ft elevation
KOA Lake - Boulder was last stocked 6 months ago (Apr 3 to 9, 2026). We have 13 stockings on record since Apr 11, 2017, 3 in the last 12 months. Most stockings come in April and October.
- Number 5 of 17 stocked waters in Boulder County by stocking days.
- Stocked more often than 60% of Colorado waters on our record.
River conditions
Nearest USGS gage: BOULDER CREEK AT NORTH 75TH ST. NEAR BOULDER, CO (4 km away, on a different stream or lake).
- Flow
- 36 cfs
- about normal for the last six weeks
- Gage height
- 4.68 ft
Latest reading Sep 29, 2026, 1:15 AM UTC. USGS data are provisional. Gage page at USGS.
Weather at KOA Lake - Boulder
- Tonight55°FChance Rain Showers51% rain · wind 1 to 5 mph
- Tuesday68°FChance Rain Showers32% rain · wind 1 to 6 mph
- Tuesday Night53°FRain Showers Likely57% rain · wind 5 mph
- Wednesday65°FRain Showers Likely63% rain · wind 3 to 8 mph
- Wednesday Night50°FChance Rain Showers53% rain · wind 5 to 8 mph
- Thursday66°FChance Rain Showers then Mostly Sunny43% rain · wind 6 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is KOA Lake - Boulder stocked?
Most stockings come in April and October.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | ||||||||||
| 2025 | 1 | 1 | ||||||||||
| 2024 | 1 | 1 | ||||||||||
| 2023 | 1 | 1 | ||||||||||
| 2019 | 1 | 1 | ||||||||||
| 2018 | 1 | 1 | ||||||||||
| 2017 | 1 |
Stocking history
20262 stockings
| Date | Species | Since previous |
|---|---|---|
Week of Apr 3Latest Apr 3 to Apr 9 | Trout | 1 week |
Week of Mar 27 Mar 27 to Apr 2 | Trout | 24 weeks |
20252 stockings
| Date | Species | Since previous |
|---|---|---|
Week of Oct 10 Oct 10 to Oct 16 | Trout | 27 weeks |
Week of Apr 4 Apr 4 to Apr 10 | Trout | 20 weeks |
20242 stockings
| Date | Species | Since previous |
|---|---|---|
Week of Nov 15 Nov 15 to Nov 21 | Trout | 4 weeks |
Week of Oct 18 Oct 18 to Oct 24 | Trout | 388 days |
20232 stockings
- Week of Sep 26 trout
- Week of Apr 14 trout
20192 stockings
- Week of Sep 30 trout
- Week of May 9 trout
20182 stockings
- Week of Oct 17 trout
- Week of Apr 4 trout
20171 stocking
- Week of Apr 11 trout
From Colorado fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go. Seasons and limits: Colorado fishing regulations.
Where is KOA Lake - Boulder?
Boulder County, Colorado. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near KOA Lake - Boulder
- Thunderbird Lakelake · 2 mistocked Nov 10, 2017
- Wonderland Lakelake · 4 mistocked Apr 21, 2020
- Viele Lakelake · 4 mistocked Feb 26, 2026
- Harper Lakelake · 4 mistocked Mar 13, 2026
- Park Lakelake · 5 mistocked Oct 31, 2025
- Klubert-Warembourg Pondpond · 6 mistocked Oct 3, 2025
- Waneka Lakelake · 6 mistocked May 1, 2026
- Erie Lakelake · 6 mistocked Oct 4, 2024
All stocked waters in Boulder CountyStocked this week in Colorado
Questions about KOA Lake - Boulder
- When was KOA Lake - Boulder last stocked?
- The latest reported stocking was Apr 3 to 9, 2026, according to Colorado agency reports.
- How often is KOA Lake - Boulder stocked?
- It was stocked 3 times in the last 12 months. Across all years on record, most stockings come in April and October.
- Is KOA Lake - Boulder stocked often?
- Number 5 of 17 stocked waters in Boulder County by stocking days. Stocked more often than 60% of Colorado waters on our record. We count each day the agency reported stocking it.
Stocking report from Colorado Parks and Wildlife, which lists the waters stocked with catchable trout (about 10 inches) in the week before each report. Locations from the Colorado Fishing Atlas.