Newest reservoirs in Iowa
The year that a reservoir was first filled to the reservoir’s normal elevation – or the year that a natural lake was first dammed – is the determining factor in the age of the body of water. A large reservoir can take more than a year to fill after its dam is first closed. You can find many of the the world’s newest reservoirs on LakeLubbers in the comparison table below. Many of the world’s oldest reservoirs appear on the last page of that list. Note: For some lakes, the completion year data is unknown, so you may see fewer lakes than the total 15 articles we have published for Iowa lakes.Thinking about booking a Iowa lake vacation home rental, cabin or hotel?
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Below are lakes within USA > US Midwest Region > Iowa > Compared by newest (youngest) reservoirs and the year it was completed. This list does not represent all lakes in Iowa, only the 15 Iowa lake articles we have published on the LakeLubbers website.
Lake name  |
Completion year |
Lake description |
|---|---|---|
| Saylorville Lake, IA (Central Iowa, Iowa, US Midwest Region, USA) |
1977 | Also known as Saylorville Reservoir Saylorville Lake is a man-made reservoir located on the Des Moines River bordering the town of Polk City, about 11 miles north of Des Moines, Iowa. Th… |
| Rathbun Lake, IA (Iowa, South Central Iowa, US Midwest Region, USA) |
1972 | Also known as Lake Rathbun One of the largest lakes in the state of Iowa, Rathbun Lake is located in Appanoose County and is a perfect place to enjoy water sports, fishing, and… |
| Lake Red Rock, IA (Iowa, South Central Iowa, US Midwest Region, USA) |
1969 | Also known as Red Rock Lake, Red Rock Reservoir Lake Red Rock is a reservoir in south-central Iowa created by the Army Corps of Engineers. This Marion County lake was constructed over the course of… |
| Coralville Lake (East Central Iowa, Iowa, US Midwest Region, USA) |
1958 | Also known as Coralville Reservoir Star of east-central Iowa’s recreation opportunities, Coralville Lake has led the pack for the 60 years of its existence. Originally built to control… |
| Carter Lake IA (Iowa, Metro Region, NE, Nebraska, Southwest Iowa, US Midwest Region, USA) |
1877 | In the late 1800’s the Missouri River changed its course, altering the future of the area around Omaha, Nebraska and creating Carter Lake. Spanning pa… |