Mariposa Lake

General Information

County: Jasper
Location: 5 miles northeast of Newton
Acres: 17.90
Maximum Depth: 12 ft. (2004 - Information from Jasper County Conservation Board.)
Motoring Restrictions:

Nearby Parks

Rock Creek State Park

Amenities

Amenities at Mariposa Lake include:
  • Picnic Area
  • Restrooms
  • Camping
  • Good/Excellent Shorefishing
No recent updates
Download Printable Lake Map

You can zoom in on the map for bathymetric information for some lakes

  • 09/26/2013 - 182 Channel Catfish (8.2")
  • 09/08/2011 - 239 Channel Catfish (8.3")
The Fishing Regulations brochure is available for download. The summaries listed below are a partial listing provided for your benefit.

  • Bluegill
    • Season: Continuous
    • Daily Bag Limit: 25 fish
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: No daily limit on private waters
  • Channel Catfish
    • Season: Continuous
    • Daily Bag Limit: combined: channel, blue and flathead catfish, 8 fish
    • Possession Limit: combined: channel, blue and flathead catfish, 30 fish
    • Length Limit: none
    • Other:
  • Common Carp
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: May be taken by hand fishing, by snagging, by spear or by bow and arrow, day or night.
  • Largemouth Bass
    • Season: Continuous
    • Daily Bag Limit: combined black bass, 3 fish
    • Possession Limit: combined black bass, 6 fish
    • Length Limit: 15-inch minimum
    • Other:
The lake dredging, fish habitat and boat ramp additions were completed in late 2019. The lake will be filled and stocked during 2020. Fishing trips will be better if anglers wait until 2021.(2019)

Contacts

Iowa-Caught Fish Are Safe to Eat, In Almost All Cases

The vast majority of Iowa’s streams, rivers and lakes offer safe and high-quality fish that pose little or no threat to human health if consumed. Some limitations may apply for young children and pregnant women. Here’s a Fish Consumption Fact Sheet from the Iowa DNR and the Iowa Dept. of Public Health for more information. Here is a list of current fish consumption advisories for Iowa lakes and rivers.