Fishing near Longmont, Colorado
Boulder County, population 98,885.
- 1 mileto nearest lake
- 5ramps nearby
Pick for troutPiscifun Carbon X ultralight spinning reel28% OFFSale $57.99 Photo of South Platte River: Jeffrey Beall, CC BY 3.0
Water within reach of Longmont
The 2020 Census counted 98,885 people in Longmont, a city of Boulder County. Izaak Walton Longmont Pond is the nearest lake with a page, about 1 mile southwest. The list below peaks in size with Union Reservoir, 751 acres. Closest ramp on the CPW map: Saint Vrain State Park on St. Vrain State Park Blue Heron, 6 miles.
For a stream, try the Left Hand Creek, 3 miles from town. 15 miles separates town from Gold Medal miles on the South Platte River. Waters near town appear 21 times on the CPW trout stocking report since 2024.
Census 2020 population and Gazetteer point for Longmont; distances are straight lines.
For the trout herePiscifun Carbon XT ultralight spinning reel25% OFFSale $59.99 Lakes to fish from Longmont
| Lake | Distance | Acres | Elevation ft | Notes | Species listed |
|---|---|---|---|---|---|
| Izaak Walton Longmont Pond | 1 mile southwest | 13 | 4,968 | no boats, trout stocked | |
| Boulder County Fairgrounds Lake | 2 miles west | 16 | 4,986 | ||
| Golden Gravel Pond #3 | 2 miles west | 18 | 5,001 | trout stocked | |
| Golden Gravel Pond #2 | 2 miles west | 12 | 5,007 | ||
| Golden Gravel Pond #1 | 2 miles west | 12 | 5,010 | ||
| Union Reservoir | 3 miles east | 751 | 4,958 | gas motors, trout stocked | black bullhead, black crappie, bluegill |
Rivers and forks by Longmont
- Left Hand Creek3 miles, 3 public access properties
- Boulder Creek15 miles, 1 reach with special rules (4.7 mi); 2 public access properties
- South Platte River15 miles, Gold Medal 24.1 mi; 9 reaches with special rules (45.2 mi); 7 public access properties; on the stocking report
- South Boulder Creek20 miles, 3 public access properties
CPW Fishing Atlas waterbodies and Boatable Waters species; CPW special-regulation and Gold Medal stream layers. Retrieved October 2026.
Longmont fishing map
- Saint Vrain State Park on St. Vrain State Park Blue HeronSt. Vrain State Park Blue Heron, 6 miles
- Boulder City Reservoir boat rampBoulder City Reservoir, 9 miles
- Lonetree Reservoir boat ramp near LovelandLonetree Reservoir, 12 miles
- Marina on Carter ReservoirCarter Reservoir, 14 miles
- Lon Hagler boat ramp near LovelandLon Hagler Reservoir, 14 miles
Fishing from shore around Longmont
- Izaak Walton Longmont Pond fishing access near Longmont, Boulder CountyIzaak Walton Longmont Pond, 1 mile
- Izaak Walton Longmont Pond fishing access near Longmont, Boulder County 2Izaak Walton Longmont Pond, 1 mile
- Fairgrounds LakeBoulder County Fairgrounds Lake, 2 miles
- Golden Gravel Pond #3 fishing access near Longmont, Boulder County 2Golden Gravel Pond #3, 2 miles
- Golden Gravel Pond #3 fishing access near Longmont, Boulder CountyGolden Gravel Pond #3, 2 miles
- Golden PondsGolden Gravel Pond #2, 2 miles
CPW boat ramps and Fishing Atlas fishing locations, retrieved October 2026.
Where trout are stocked near Longmont
| Water | Listings | By year | Latest |
|---|---|---|---|
| Golden Gravel Pond #3 | 6 | 2026: 1, 2025: 2, 2024: 3 | Oct. 2, 2026 |
| South Platte River | 11 | 2026: 1, 2025: 7, 2024: 3 | June 5, 2026 |
| Izaak Walton Longmont Pond | 4 | 2025: 2, 2024: 2 | Oct. 10, 2025 |
CPW Fish Stocking Report (catchable trout, about 10 inches; each listing is a week the water appeared on the report, 2024 to October 2026); CPW publishes no numbers or sizes per water. Retrieved October 2026.
Discharge readings close to Longmont
| USGS gauge | Latest reading | Time (ET) |
|---|---|---|
| Left Hand Creek At Hover Road Near Longmont, Co | 1 cfs, 5.43 ft gage height | Oct 27 7:15 pm |
| Boulder Creek At Mouth Near Longmont, Co | 11 cfs, 9.31 ft gage height | Oct 27 7:00 pm |
| St Vrain Cr Blw Boulder Cr At Hwy 119 Nr Longmont | 78 cfs, 10.06 ft gage height | Oct 27 7:00 pm |
US Geological Survey provisional data, retrieved Oct 27, 2026 7:33 pm ET. Provisional readings can be revised.
Fishing help around Longmont
Where to buy line and lures near Longmont
- Angles Sportssporting goods store, Longmont, under a mile
- Laughing Grizzly Fly Shopfly shop, Longmont, 2 miles
- Woods and Water Outfittersbait and tackle shop, Longmont, 2 miles
- Sarabella Fishingbait and tackle shop, Erie, 9 miles
- Backcut Fly Shopfly shop, Berthoud, 9 miles
- Rise Form Fliesbait and tackle shop, Boulder, 10 miles
- Lyons Anglerfly shop, Lyons, 10 miles
- Bennetts Tacklebait and tackle shop, Berthoud, 10 miles
Outfitters who fish Longmont
- Laughing Grizzly Fly Shop, Inc.fly fishing guide, Longmont
Yellow Pages listings and chain store locators; DORA outfitter roster (business city or county). Retrieved October 2026.
What Longmont anglers may keep
The annual license runs $44.87 with Colorado residency and $124.01 without it, while resident seniors pay $12.96. Short stays can use the $21.90 nonresident day license; residents pay $18.07. Fishing with two lines means buying the $14.24 second-rod stamp. The east slope zone covers the water near Longmont.
| Species | Limit | Season |
|---|---|---|
| Trout, arctic char, grayling, salmon and whitefish (not kokanee) | Daily bag 4, possession 8, in aggregate | Open all year, day and night, unless a special regulation says otherwise |
| Brook trout 8 inches or less (bonus) | Daily bag 10, possession 10 | Open all year, day and night, unless a special regulation says otherwise |
| Kokanee salmon | Daily bag 10, possession 10 | Open all year, day and night, unless a special regulation says otherwise |
| Walleye, saugeye and sauger | Daily bag 5, possession 5, in aggregate | Open all year, day and night, unless a special regulation says otherwise |
| Largemouth, smallmouth and spotted bass | Daily bag 5, possession 5, in aggregate | Open all year, day and night, unless a special regulation says otherwise |
| White bass, striped bass and wiper | Daily bag 10, possession 10, in aggregate | Open all year, day and night, unless a special regulation says otherwise |
| Channel, flathead and blue catfish | Daily bag 10, possession 10, in aggregate | Open all year, day and night, unless a special regulation says otherwise |
| White and black crappie | Daily bag 20, possession 20, in aggregate | Open all year, day and night, unless a special regulation says otherwise |
| Bluegill and other sunfish | Daily bag 20, possession 20, in aggregate | Open all year, day and night, unless a special regulation says otherwise |
| Yellow perch | Daily bag 20, possession 20 | Open all year, day and night, unless a special regulation says otherwise |
| Tiger muskie | Daily bag 1, possession 1; at least 36 inches long | Open all year, day and night, unless a special regulation says otherwise |
| Northern pike and bullhead | No bag or possession limit | Open all year, day and night, unless a special regulation says otherwise |
Statewide limits chart, 2026 Colorado Fishing brochure (CPW, season March 1, 2026 to March 31, 2027), p. 10. Lake and stream pages list special regulations.
The ground surrounding Longmont
Beds and gas close to Longmont
- Niwot6 miles
- Mead7 miles
- Frederick8 miles
- Firestone8 miles
- Gunbarrel8 miles
County guides that cover Longmont
- Boulder CountyCPW Northeast Region
Piscifun tackle sized for Longmont
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Reservoirs and creeks near Longmont in photos
Photo: USEPA Environmental-Protection-Agency, Public domain
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Photo: KimonBerlin, CC BY-SA 2.0
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Photo: G. Lamar, CC BY 2.0
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Photo: Wusel007, CC BY-SA 3.0
Questions from visitors bunking in Longmont
How many miles separate Longmont from still water?
Izaak Walton Longmont Pond, 1 mile southwest.
Which CPW ramp is the shortest tow from Longmont?
Closest: Saint Vrain State Park on St. Vrain State Park Blue Heron, 6 miles.
Is an accessible fishing pier close to Longmont?
Izaak Walton Longmont Pond fishing access near Longmont, Boulder County, about 1 mile off (accessible pier, easy access, stocked: catchable trout and warmwater, 4,968 ft).
Who sells tackle around Longmont?
Angles Sports, under a mile away.
Can Longmont anglers reach Gold Medal water?
The South Platte River, 15 miles away, with 24.1 Gold Medal miles.
Which county guide on this site includes Longmont?
It lies in Boulder County.
Which lakes near Longmont allow ice fishing?
CPW notes show no ice fishing at the lakes below.
When is fishing open near Longmont?
Colorado keeps water open year round; only special regulations close some.
Do Longmont visitors need a license?
Visitors can buy a $21.90 day license, a $41.04 five-day license or the $124.01 annual.
Which lakes around Longmont receive catchable trout?
Yes; nearby waters appear 21 times on the CPW catchable trout report since 2024, most recently Golden Gravel Pond #3 on Oct. 2, 2026.