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Lake Peosta Channel

Fishing spots, fishing reports, and regulations in

Iowa, United States

4.4·88 catches

Top fish species at Lake Peosta Channel

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Check which species have trophy potential in Lake Peosta Channel

Lake Peosta Channel fishing reports

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Largemouth bass

14 in · 1 lb 5 oz

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Smallmouth bass

18 in · 3 lb

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Smallmouth bass

length · weight

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White bass

length · weight

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White bass

length · weight

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Northern pike

length · weight

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General info

Lake Peosta Channel is a stream located in Dubuque County, Iowa, United States. It is also intersecting with Grant County, Wisconsin. It is most popular for fishing Largemouth bass, Smallmouth bass, and White bass.

Location

42°30′54.5″N 90°39′10.8″W
Directions

Official website

www.iowadnr.gov

Amenities

When are Largemouth Bass biting on Lake Peosta Channel?

Learn what time of year and day to go fishing at Lake Peosta Channel. Download Fishbrain today to look for new fishing spots, scout new fishing access, or prep for your next trip.

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Fishing regulations at Lake Peosta Channel, IA

Disclaimer: Always check local fishing regulations, water access rights and land ownership before fishing, regardless of any catches logged in that area by the Fishbrain community. Fishbrain has mapped millions of acres of government-owned land across the USA to help you identify potential fishing access, but you are responsible for ensuring compliance with all legal requirements.

Fishing regulations in Iowa can change throughout the year. Make sure to check this page before fishing for the most up to date rules and regulations for the current season. Local regulations govern when you can fish, the max size of the fish you can keep, how many fish you can keep, and more.

Below you will see fishing regulations for catching Largemouth bass as of May 3rd, 2026. To view regulations for a different fish species, please click on your preferred species in the drop-down.

Largemouth bass

Seasons

Open

Bag limit

5

Min size

14"

Measurement

Total Length

Special gear

Aggregate

5
Daily Bag & Possession Limit: Boundary Rivers - combined daily 5 and possession of 10 Length Limits - 14-inch minimum on the Mississippi River and 12-inch minimum length limit on the Missouri River. Associated chutes and backwaters of the border rivers are included where intermittent or constant flow occur. No length limit on the Big Sioux River. Browns Lake Mississippi River (Jackson) is catch and release only.

Micropterus nigricans

Regulations for

42°30′54.5″N 90°39′10.8″W
Regulations in the map
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Local laws and licenses

Iowa fishing license

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Reviews of Lake Peosta Channel

4.4
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5 ratings

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Top reviews

Cities nearby

East Dubuque

2.2 miles away

Sandy Hook

2.9 miles away

Dubuque

2.9 miles away

Menominee

6.3 miles away

Hazel Green

11.1 miles away

Graf

11.3 miles away

St. Donatus

12.0 miles away

Potosi

12.3 miles away

Galena

13.1 miles away

Balltown

13.9 miles away

Zwingle

15.2 miles away

Bankston

15.7 miles away

Bernard

16.7 miles away

Platteville

17.5 miles away

Holy Cross

18.4 miles away

Farley

18.8 miles away

The Galena Territory

19.0 miles away

North Buena Vista

19.2 miles away

Scales Mound

20.6 miles away

Bellevue

20.8 miles away

Shullsburg

21.7 miles away

Cascade

23.2 miles away

Springbrook

25.7 miles away

Elizabeth

25.9 miles away

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FAQ about Lake Peosta Channel fishing

the Lake Peosta Channel is a stream located in Dubuque County, Iowa, United States. It is also intersecting with Grant County, Wisconsin. Its coordinates are:
42°30′54.5″N 90°39′10.8″W
.
Find the best fishing spots on the Lake Peosta Channel by looking at where other anglers have caught fish. This can easily be done in the where it is also possible to see big fish potential and how good fishing is right now along with Garmin® depth maps.
The most common species in the Lake Peosta Channel are:
The latest Lake Peosta Channel fishing reports are:
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