Roemhildts Lake
Le Sueur County, Minnesota74 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Roemhildts Lake. Here is what has been measured.
- Mesotrophic
- 60 ft max depth
- Public access
- Limited data
Roemhildts Lake in Le Sueur County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 10.2 ft visibility. Phosphorus: 25.5 µg/L. Chlorophyll-a (algae): 5.3 µg/L. Maximum depth: 60 ft. Surface area: 73.54 acres.
Minnesota DNR's Targeted Survey on July 14, 2022 caught 20.41 largemouth bass per hour of electrofishing at Roemhildts Lake. Length samples in the latest survey that recorded them ran 3–16 inches. DNR survey details →
Roemhildts Lake is a 74-acre mesotrophic lake in Le Sueur County, Minnesota with a maximum depth of 60 feet. Overall water quality is declining over recent sampling years. The lake supports 13 documented fish species including black crappie, bluegill, and bowfin (dogfish). Public access is available with 1 public boat landing. Compared to the 12 other monitored lakes in Le Sueur County, Roemhildts Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2022-10-12. Methodology: how these readings are compared.
Roemhildts Lake covers about 74 acres in Le Sueur County. It has one public boat landing. Vrbo is where to look for cabins and lake homes around Roemhildts Lake, and Booking.com and Expedia search hotels near the lake for your dates.
What Roemhildts Lake is good for
From access and monitoring records, not editorial picks.
- Clear water10.2 ft of visibility
- Boat launch1 documented ramp
- Fishing13 species recorded
- Deep water60 ft surveyed max depth
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Roemhildts Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Roemhildts Lake
These are the measurements Minnesota PCA publishes for Roemhildts Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 10.2 ft. Phosphorus 25.5 µg/L. Chlorophyll-a 5.3 µg/L. TSI 47.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 10.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 25.5µg/L | Fair GoodFairPoor |
| Chlorophyll-a (algae) | 5.3µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 47 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Roemhildts Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Roemhildts Lake typically sits around 56°F at the surface in October. Summer average is about 59°F. Usually warmest in Sep (about 62°F) and coldest in May (about 51°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (51°F) to its warmest (62°F).
Typical surface water temperature by month, from 67 field readings (2022–2022) via the EPA Water Quality Portal. See the full Roemhildts Lake water temperature breakdown →
Minnesota DNR's Targeted Survey on July 14, 2022 caught 20.41 largemouth bass per hour of electrofishing at Roemhildts Lake. Length samples in the latest survey that recorded them ran 3–16 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Roemhildts Lake’s water-quality measurements separately, and the water-quality trend over 4 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
14 surveys on file from MN DNR Fisheries. Most recent: 2022-07-14 (Targeted Survey).
14 surveys on file · most recent 2022-07-14 (Targeted Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Largemouth Bass | 30.06 | 3–16 in 2022-06-27 | 0.57 lb |
| Bluegill | 26.08 | 2–9 in 2022-06-27 | 0.15 lb |
| Yellow Perch | 8.43 | 4–9 in 2016-07-05 | 0.1 lb |
| Hybrid Sunfish | 3.73 | 2–7 in 2022-06-27 | 0.18 lb |
| Black Crappie | 3.35 | 6–12 in 2022-06-27 | 0.29 lb |
CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and is not a weekly bite report.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Largemouth Bass
Bluegill
Yellow Perch
Hybrid Sunfish
From the 2022-07-14 survey
A targeted survey of nearshore fish species in Roemhildts Lake was conducted on July 12, 2022, by DNR Fisheries staff. Ten sampling sites were evenly spaced around the lake, and each was sampled by backpack electrofishing and seining with a 50-foot or 15-foot seine, where possible. Backpack electrofishing was…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Roemhildts Lake. 3 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — RoemhildtsFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Roemhildts (1390)Aquatic Plant Report · MN DNR LakeFinder
- —Public Water Access Sites — RoemhildtsPublic Water Access Sites · MN DNR LakeFinder
Lake Details
Max depth
60 ft
Surface area
74 acres
Shoreline
1.3 mi
Littoral zone
60%
Share shallower than 15 ft
Public access
Yes
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
2 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,014 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Roemhildts LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Roemhildts Lake
Compare lakeside cabins, hotels, and vacation rentals near Roemhildts Lake in Le Sueur County, Minnesota — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Roemhildts Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing Roemhildts Lake
Water Quality Trend: Worsening
Based on 4 years of monitoring (2020–2025).
Water clarity
Improving4 years
Phosphorus
Worsening+7.32 µg/L/yr3 years
Chlorophyll-a
Worsening+17.06 µg/L/yr3 years
Nearby Lakes in Le Sueur County
Frequently asked questions about Roemhildts Lake
Where is Roemhildts Lake?
- Roemhildts Lake is a lake in Le Sueur County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Roemhildts Lake?
- Roemhildts Lake in Le Sueur County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 10.2 ft visibility. Phosphorus: 25.5 µg/L. Chlorophyll-a (algae): 5.3 µg/L. Maximum depth: 60 ft. Surface area: 73.54 acres.
Is Roemhildts Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Roemhildts Lake?
- Roemhildts Lake typically sits around 56°F at the surface in October, from 67 EPA Water Quality Portal field readings (2022–2022). That is a typical value for the month, not a live reading.
How deep is Roemhildts Lake?
- Roemhildts Lake has a maximum depth of 60 feet. The lake covers 73.54 acres.
What fish are in Roemhildts Lake?
- Fish species found in Roemhildts Lake include black crappie, bluegill, bowfin (dogfish), brown bullhead, common carp, freshwater drum, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, yellow bullhead, yellow perch. Roemhildts Lake is located in Le Sueur County, Minnesota.
What did the DNR fisheries survey find at Roemhildts Lake?
- Minnesota DNR's Targeted Survey on July 14, 2022 caught 20.41 largemouth bass per hour of electrofishing at Roemhildts Lake. Length samples in the latest survey that recorded them ran 3–16 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Roemhildts Lake’s water-quality measurements separately, and the water-quality trend over 4 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Roemhildts Lake?
- Roemhildts Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Roemhildts Lake. Public access is listed as yes.
Can I fish at Roemhildts Lake?
- Roemhildts Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Minnesota's fish and wildlife agency, so check its current regulations before you go.
Explore Roemhildts Lake across LakeQuality
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Where this data comes from
19 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA19 samples · 2022
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder
Named boat-access points from the USGS National Boat Ramps inventory