Rex Reservoir fishing
Rex Reservoir was last stocked on June 30, 2025 with 4,020 rainbow trout (2.6 in. average), according to the Utah DWR fish stocking report. It is a reservoir in Sevier County, Utah. From 2021 to 2026, DWR stocked 21,727 fish here, the 11th most of 39 stocked waters in Sevier County.
Recent stockings at Rex Reservoir
- June 30, 20254,020 rainbow trout, 2.6 in. average
- July 2, 20244,032 rainbow trout, 2.8 in. average
- May 9, 20234,060 rainbow trout, 3.9 in. average
- April 6, 20224,030 rainbow trout, 4.3 in. average
- June 30, 20215,585 rainbow trout, 2.8 in. average
- May 28, 20205,000 rainbow trout, 2.7 in. average
Newest first, from the Utah DWR stocking report. Full stocking history.
Rex Reservoir facts
- Last stocked
- June 30, 2025 (498 days ago): 4,020 rainbow trout
- Stockings in 2026
- None recorded yet in 2026
- County
- Sevier County
- Stocked since 2021
- rainbow trout
- Average size stocked
- 3.3 in. (2021 to 2026)
- County rank
- 11th most fish of 39 stocked waters in Sevier County since 2021
- Name in DWR report
- REX RES
- Nearest water
- Gates Lake, 5 mi
- Rules
- Statewide rules (no water-specific entry in the 2026 guidebook)
Rex Reservoir stocking report, last 12 months
No stocking recorded in the last 12 months. The most recent record is dated June 30, 2025.
Source: Utah DWR fish stocking report. Stocking data fetched Nov. 10, 2026; newest record dated Nov. 19, 2026. DWR posts stockings after they happen and does not publish schedules.
Rex Reservoir stocking profile
- First record in the DWR report: April 15, 2002. Since then DWR has logged 25 stockings here in 24 different years, 100,822 fish in all.
- Species stocked 2021 to 2026, by share of fish: rainbow trout 100% (21,727 fish).
- Busiest months in the record: May (44% of records) and April (28% of records).
- Stocked fish averaged 3.3 in. from 2021 to 2026 (per-record averages ranged from 2.6 to 4.3 in.).
- Fish stocked 2021 to 2026: 21,727, the 11th most of 39 stocked waters in Sevier County and 219th of 1,076 statewide.
- Nearest other water with a page: Gates Lake, 5 mi away.
Computed from Utah DWR stocking records (fish counts and average lengths as DWR reports them). Past stocking is history, not a schedule.
When is Rex Reservoir stocked?
Based on DWR stocking records, 2021 to 2025. Stocked in 5 of those 5 years.
2025 stocking: 1 record, first on June 30.
In past years, stocking here had usually started by this time of year (5 of the last 5 years). No stocking has been recorded here yet in 2026.
DWR does not publish stocking schedules. This is past stocking, not a promise. How we read patterns.
Rex Reservoir stocking history by year
| Year | Records | Fish | Avg. length | Species |
|---|---|---|---|---|
| 2025 | 1 | 4,020 | 2.6 in. | Rainbow trout |
| 2024 | 1 | 4,032 | 2.8 in. | Rainbow trout |
| 2023 | 1 | 4,060 | 3.9 in. | Rainbow trout |
| 2022 | 1 | 4,030 | 4.3 in. | Rainbow trout |
| 2021 | 1 | 5,585 | 2.8 in. | Rainbow trout |
| 2020 | 1 | 5,000 | 2.7 in. | Rainbow trout |
| 2019 | 1 | 4,009 | 2.8 in. | Rainbow trout |
| 2018 | 1 | 4,004 | 5.4 in. | Rainbow trout |
| 2017 | 1 | 4,032 | 4.4 in. | Rainbow trout |
| 2016 | 1 | 4,212 | 3.3 in. | Rainbow trout |
| 2015 | 1 | 4,207 | 3.7 in. | Rainbow trout |
| 2014 | 1 | 4,539 | 3.6 in. | Rainbow trout |
| 2013 | 1 | 3,989 | 4.1 in. | Rainbow trout |
| 2012 | 1 | 4,039 | 3.4 in. | Rainbow trout |
| 2011 | 1 | 4,356 | 3.7 in. | Rainbow trout |
| 2010 | 1 | 4,060 | 3.1 in. | Rainbow trout |
| 2009 | 2 | 4,083 | 4.1 in. | Rainbow trout |
| 2008 | 1 | 4,505 | 3.6 in. | Rainbow trout |
| 2007 | 1 | 4,009 | 5.4 in. | Rainbow trout |
| 2006 | 1 | 4,008 | 5.2 in. | Rainbow trout |
| 2005 | 1 | 4,011 | 4.9 in. | Rainbow trout |
| 2004 | 1 | 4,004 | 4.5 in. | Rainbow trout |
| 2003 | 1 | 4,019 | 3.9 in. | Rainbow trout |
| 2002 | 1 | 4,009 | 3.6 in. | Rainbow trout |
All stocking records 2021 to Nov. 10, 2025 (5)
| June 30, 2025 | Rainbow trout | 4,020 | 2.6 in. |
| July 2, 2024 | Rainbow trout | 4,032 | 2.8 in. |
| May 9, 2023 | Rainbow trout | 4,060 | 3.9 in. |
| April 6, 2022 | Rainbow trout | 4,030 | 4.3 in. |
| June 30, 2021 | Rainbow trout | 5,585 | 2.8 in. |
Fishing rules
No water-specific entry for Rex Reservoir in the 2026 guidebook: statewide limits apply unless a group entry (such as a drainage) covers it.
From the 2026 Utah Fishing Guidebook, in our own words. Rules can change mid-year: check wildlife.utah.gov/guidebooks before fishing.
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Rex Reservoir questions
When is Rex Reservoir stocked?
DWR does not publish stocking schedules. Past records show Rex Reservoir was stocked in late June to early July (3 of the last 5 years). The most recent stocking in the DWR report is dated June 30, 2025.
What fish are in Rex Reservoir?
Since 2021 DWR has stocked rainbow trout.
Stocking: Utah DWR fish stocking report, fetched Nov. 10, 2026. Location: Utah DWR, USGS NHD. Rules: 2026 Utah Fishing Guidebook. Page built Nov. 10, 2026. Found an error? Tell us. Verify rules with DWR before fishing.