How deep is Dewart Lake?

Dewart Lake reaches a maximum depth of 70 feet in the Indiana DNR Lake Bathymetry survey. Most of it is far shallower: the survey charts 7 closed depth contours over about 255 acres, and half of that water sits inside the 30 ft line.

Where is the deepest part of Dewart Lake?

The deepest charted water on Dewart Lake lies inside the 70 ft contour, toward the northwestern corner of the lake. That contour encloses 1 acres, under 1% of the mapped water, so it is a small target on a small water, the depth chart above gives the contour to line up on.

How much of Dewart Lake is shallower than 30 feet?

About half. The 30 ft contour encloses 107 acres of the roughly 255 acres inside the outer 10 ft line, so the other half of the water is shallower than 30 feet. The sharpest drop is between 20 and 30 feet, where the mapped water sheds 93 acres.

How accurate is this Dewart Lake depth map?

The contours come from the Indiana DNR Lake Bathymetry survey, retrieved August 2026 and last rebuilt on August 19, 2026. Depths change over time with water levels and sediment, so treat this map as a planning guide for fishing, and never use it for navigation. Per Indiana DNR, the data are graphical representations for reference only, not a survey instrument. Acreages are computed from the published contour geometry, not from a separate area survey, so read them as close approximations.

Indiana lake depth maps

Dewart Lake depth map

Dewart Lake in Kosciusko County, Indiana reaches a depth of 70 feet. Dewart Lake is charted here across 7 closed depth contours, from the 10 ft line down to 70 ft, enclosing about 255 acres of water. Half of that water lies inside the 30 ft line, and only 1 acres lie inside the deepest one. Every contour is on the interactive map below, free and without an account.

Data: Indiana DNR Lake Bathymetry (credit: Indiana DNR). Contours closed, checked and area-computed by Jordan Carter, founder of GilledIt · page updated August 19, 2026

Dewart Lake depth chart: 7 depth contours from 10 to 70 ft

Data: Indiana DNR Lake Bathymetry (credit: Indiana DNR), retrieved August 2026 · depths change over time · not for navigation

Dewart Lake depth chart data: water enclosed by each contour
Depth contour	Water inside it	Share of mapped water
10 ft	255 acres	100%
20 ft	200 acres	79%
30 ft	107 acres	42%
40 ft	51 acres	20%
50 ft	18 acres	7.1%
60 ft	5.4 acres	2.1%
70 ft	1 acres	under 1%

Acreages are computed from the closed Indiana DNR Lake Bathymetry contour rings, with islands subtracted. Shares are of the 255 acres inside the outermost charted contour (the 10 ft line), which is the outer edge of the mapped water, several state files carry no 0 ft shoreline line, so this is not the same as a share of the lake's published surface area.

Fishing Dewart Lake: a stepped drop into deep water

The survey encloses about 255 acres of Dewart Lake inside its 10 ft contour, and half of that water lies inside the 30 ft line, so the bottom steps down contour by contour into the deep basin rather than shelving flat or plunging all at once. Between 20 and 30 ft the mapped water sheds 93 acres in 10 ft of depth, the sharpest change on the chart, start on that band, because it is where the bottom stops being flat. 1 acres, under 1% of the mapped water, lie inside the deepest 70 ft contour, toward the northwestern corner of the lake. At 70 ft this is two-story water: the basin can stay cold below the summer thermocline while warm-water fish stay up on the 10-to-30 ft ground, and the fish that move between the two do it along the 20–30 ft break at first and last light.

Ice fishing on Dewart Lake

Deep water like Dewart Lake freezes later and less evenly than the shallow lakes around it, and the winter bite sets up on the first real break, not out over the 70 ft hole. That edge is the 20–30 ft band on the chart above, where 93 acres of bottom tilt away, and panfish and walleye work up and down it through the day. By late ice the fish push back onto the 10-to-30 ft flat. Check ice thickness locally before you walk out.

Dewart Lake depth map FAQs

How deep is Dewart Lake?: Dewart Lake reaches a maximum depth of 70 feet in the Indiana DNR Lake Bathymetry survey. Most of it is far shallower: the survey charts 7 closed depth contours over about 255 acres, and half of that water sits inside the 30 ft line.
Where is the deepest part of Dewart Lake?: The deepest charted water on Dewart Lake lies inside the 70 ft contour, toward the northwestern corner of the lake. That contour encloses 1 acres, under 1% of the mapped water, so it is a small target on a small water, the depth chart above gives the contour to line up on.
How much of Dewart Lake is shallower than 30 feet?: About half. The 30 ft contour encloses 107 acres of the roughly 255 acres inside the outer 10 ft line, so the other half of the water is shallower than 30 feet. The sharpest drop is between 20 and 30 feet, where the mapped water sheds 93 acres.
How accurate is this Dewart Lake depth map?: The contours come from the Indiana DNR Lake Bathymetry survey, retrieved August 2026 and last rebuilt on August 19, 2026. Depths change over time with water levels and sediment, so treat this map as a planning guide for fishing, and never use it for navigation. Per Indiana DNR, the data are graphical representations for reference only, not a survey instrument. Acreages are computed from the published contour geometry, not from a separate area survey, so read them as close approximations.

Depth maps for lakes near Dewart Lake

Lake Wawasee depth map · 75 ft max · 4 mi away
Shock Lake depth map · 60 ft max · 4 mi away
Spear Lake depth map · 40 ft max · 6 mi away
Big Chapman Lake depth map · 35 ft max · 6 mi away
Pretty Lake depth map · 80 ft max · 6 mi away

Mapped fishing venues near Dewart Lake

Dewart Lake in the venue directory covers access and fishing details for this water.

Lake Wawasee · 4 mi away
Shock Lake · 4 mi away
Wawasee Public Fishing Area · 5 mi away

Fishing in Indiana needs a state license: Indiana fishing license guide · all Indiana venues