How deep is Loomis Lake?

Loomis Lake reaches a maximum depth of 50 feet in the Indiana DNR Lake Bathymetry survey. Most of it is far shallower: the survey charts 10 closed depth contours over about 39 acres, and half of that water sits inside the 15 ft line.

Where is the deepest part of Loomis Lake?

The deepest charted water on Loomis Lake lies inside the 50 ft contour, toward the southeastern corner of the lake. That contour encloses under an acre, 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 Loomis Lake is shallower than 15 feet?

About half. The 15 ft contour encloses 6.2 acres of the roughly 39 acres inside the outer 5 ft line, so the other half of the water is shallower than 15 feet. The sharpest drop is between 10 and 15 feet, where the mapped water sheds 17 acres.

How accurate is this Loomis 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

Loomis Lake depth map

Loomis Lake in Porter County, Indiana reaches a depth of 50 feet. Loomis Lake is charted here across 10 closed depth contours, from the 5 ft line down to 50 ft, enclosing about 39 acres of water. Half of that water lies inside the 15 ft line, and only under an acre 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

Loomis Lake depth chart: 10 depth contours from 5 to 50 ft

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

Loomis Lake depth chart data: water enclosed by each contour
Depth contour	Water inside it	Share of mapped water
5 ft	39 acres	100%
10 ft	23 acres	59%
15 ft	6.2 acres	16%
20 ft	3.8 acres	9.6%
25 ft	2.7 acres	6.9%
30 ft	1.5 acres	3.8%
35 ft	under 1 acre	2.4%
40 ft	under 1 acre	1.7%
45 ft	under 1 acre	1%
50 ft	under 1 acre	under 1%

Acreages are computed from the closed Indiana DNR Lake Bathymetry contour rings, with islands subtracted. Shares are of the 39 acres inside the outermost charted contour (the 5 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 Loomis Lake: a broad shallow flat

Inside its outermost 5 ft contour the survey charts about 39 acres of Loomis Lake, with the 15 ft line enclosing half of it, so most of this Porter County water is shallow and the depth is concentrated in one part of the basin. The sharpest change on the chart is between 10 and 15 ft, where the mapped water loses 17 acres in 5 ft of depth, that band is the contour to work first, because it is where the bottom stops being flat. The 50 ft contour, toward the southeastern corner of the lake, encloses under an acre of water, a single pocket rather than a basin, but one worth a drift over in high summer. With 50 ft at its deepest there is no true cold-water layer here, so structure does the work the thermocline does elsewhere: fish the points and inside turns where the 10 and 15 ft lines pinch together, hardest in early season and again as fish follow bait back down in autumn.

Ice fishing on Loomis Lake

Loomis Lake's 50 ft is a workable ice depth, enough water to hold fish all winter, without the slow freeze-up of a big basin. First light belongs on the 50 ft hole, all 0.1 acres of it; as the sun gets up, move onto the 10–15 ft break, and spend the middle of the day on the flats inside the 15 ft line. Check ice thickness locally before you walk out.

Loomis Lake depth map FAQs

How deep is Loomis Lake?: Loomis Lake reaches a maximum depth of 50 feet in the Indiana DNR Lake Bathymetry survey. Most of it is far shallower: the survey charts 10 closed depth contours over about 39 acres, and half of that water sits inside the 15 ft line.
Where is the deepest part of Loomis Lake?: The deepest charted water on Loomis Lake lies inside the 50 ft contour, toward the southeastern corner of the lake. That contour encloses under an acre, 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 Loomis Lake is shallower than 15 feet?: About half. The 15 ft contour encloses 6.2 acres of the roughly 39 acres inside the outer 5 ft line, so the other half of the water is shallower than 15 feet. The sharpest drop is between 10 and 15 feet, where the mapped water sheds 17 acres.
How accurate is this Loomis 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 Loomis Lake

Rosser Park Pond depth map · 18 ft max · 13 mi away
Hog Lake depth map · 50 ft max · 26 mi away
Saugany Lake depth map · 60 ft max · 28 mi away
Worster Lake depth map · 18 ft max · 36 mi away
North Chain Lake depth map · 32 ft max · 38 mi away

Mapped fishing venues near Loomis Lake

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

Paugh Springs Lake · 4 mi away
Rosser Park Pond · 13 mi away
Lake County Fish and Game Protective Association · 17 mi away

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