Where is Jordan Lake?

Jordan Lake is a lake in Adams County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.

What is the water temperature of Jordan Lake?

Jordan Lake typically sits around 72°F at the surface in September, from 82 EPA Water Quality Portal field readings (2024–2026). That is a typical value for the month, not a live reading.

How deep is Jordan Lake?

Jordan Lake has a maximum depth of 92 feet. The lake covers 233 acres.

Are there boat ramps on Jordan Lake?

Jordan Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Jordan Lake. Public access is listed as yes.

Can I fish at Jordan Lake?

Jordan 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 Wisconsin's fish and wildlife agency, so check its current regulations before you go.

Jordan Lake

Adams County, Wisconsin233 acresView map Directions

Wisconsin DNR publishes the water-quality measurements for Jordan Lake. Here is what has been measured.

Clarity

13 ft

Clearer than most

Secchi · sampled 2026

Phosphorus

12.3 µg/L

Less phosphorus than most

Measured by Wisconsin DNR

Water temp

~72°F

Typical for Sep · EPA WQP

Max depth

92 ft

Bathymetric survey

Area

233 acres

Surface area

Type

Mesotrophic

Trophic class

Mesotrophic
Curly-Leaf Pondweed
92 ft max depth
Public access

See the measurements Directions Where to stay

Jordan Lake in Adams County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 13 ft visibility. Phosphorus: 12.3 µg/L. Maximum depth: 92 ft. Surface area: 233 acres.

Wisconsin DNR rates Largemouth Bass and Northern Pike as abundant on Jordan Lake. DNR survey details →

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Jordan Lake is a 233-acre mesotrophic lake in Adams County, Wisconsin with a maximum depth of 92 feet. Overall water quality is declining over recent sampling years. The lake supports 5 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available with 1 public boat landing. Compared to the 17 other monitored lakes in Adams County, Jordan Lake ranks #6 for water quality.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-07-13. Methodology: how these readings are compared.

Jordan Lake covers about 230 acres in Adams County. It has one public boat landing. If you are planning to stay, you can search lake houses and cabins around Jordan Lake on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.

What Jordan Lake is good for

From access and monitoring records, not editorial picks.

Clear water13 ft of visibility
Boat launch1 documented ramp
Fishing5 species recorded
Deep water92 ft surveyed max depth

Swimming conditions

Readings only

Low algae

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 Jordan Lake is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

Compare swimming lakes near Wisconsin Dells →

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Water quality measurements for Jordan Lake

These are the measurements Wisconsin DNR publishes for Jordan 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 13 ft. Phosphorus 12.3 µg/L. TSI 40.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	13ft	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	12.3µg/L	Good GoodFairPoor
Chlorophyll-a (algae)		No reading The green pigment in algae — a direct measure of how much algae is in the water.
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.	40	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Jordan Lake

Answers come straight from the public measurements and survey records on this page.

Water Temperature

Jordan Lake typically sits around 72°F at the surface in September. Summer average is about 76°F. Usually warmest in Jul (about 79°F) and coldest in Mar (about 41°F). These are typical values by month — not a live reading.

Jan

Feb

41°

Mar

Apr

61°

May

72°

Jun

79°

Jul

76°

Aug

72°

Sep

Oct

Nov

Dec

Column height runs from this lake’s coldest month (41°F) to its warmest (79°F).

Typical surface water temperature by month, from 82 field readings (2024–2026) via the EPA Water Quality Portal. See the full Jordan Lake water temperature breakdown →

DNR fisheries survey

Wisconsin DNR rates Largemouth Bass and Northern Pike as abundant on Jordan Lake.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Jordan Lake’s water-quality measurements separately, and the water-quality trend over 7 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 1986. 2 stations on file (most recent sample 2025).

DNR Assessment

Reported

Trophic State Index 40 (oligotrophic) · 5-year average

Fish Species (DNR-rated)

Largemouth Bass(Abundant)Northern Pike(Abundant)Panfish(Common)Trout(Present)Walleye(Present)

Contour map (PDF) →Full WI DNR LakePage →Water quality stations →

Lake Details

Max depth

92 ft

Surface area

233 acres

Public access

Yes

Listed by Wisconsin DNR

Lake Size & Watershed

Watershed (drainage) area

9 sq mi

HydroLAKES / HydroSHEDS

Shoreline

2.8 mi

HydroLAKES / HydroSHEDS

Elevation

899 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).

Recreation & Access

Boat Landings

Yes

Public Access

Jordan 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 Jordan Lake

Compare lakeside cabins, hotels, and vacation rentals near Jordan Lake in Adams County, Wisconsin — 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 Jordan Lake

Prices for Oct 16–18, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a whole trip? See where to stay at Wisconsin’s top lakes →

Follow Jordan Lake’s readings

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Fish Species

Panfish Largemouth Bass Northern Pike Trout Walleye

Click a species to see every lake where it is documented.

Fishing Jordan Lake

Invasive & Introduced Species

Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.

Banded Mystery SnailCurly-Leaf PondweedEurasian Water-MilfoilHybrid Eurasian / Northern Water-Milfoil

Water Quality Trend: Worsening

Based on 7 years of monitoring (2020–2026).

Water clarity
Stable
7 years
Phosphorus
Worsening
+0.38 µg/L/yr7 years

See year-by-year chart →

Nearby Lakes in Adams County

Parker Lake17 ft clear · Oligotrophic—View →Deep Lake15.5 ft clear · Oligotrophic—View →Peppermill Lake7.5 ft clear · Mesotrophic—View →Crooked Lake9 ft clear · Mesotrophic—View →Goose Lake8 ft clear · Mesotrophic—View →Wolf Lake15 ft clear · Oligotrophic—View →

Frequently asked questions about Jordan Lake

Where is Jordan Lake?: Jordan Lake is a lake in Adams County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Jordan Lake?: Jordan Lake in Adams County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 13 ft visibility. Phosphorus: 12.3 µg/L. Maximum depth: 92 ft. Surface area: 233 acres.
Is Jordan 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 Jordan Lake?: Jordan Lake typically sits around 72°F at the surface in September, from 82 EPA Water Quality Portal field readings (2024–2026). That is a typical value for the month, not a live reading.
How deep is Jordan Lake?: Jordan Lake has a maximum depth of 92 feet. The lake covers 233 acres.
What fish are in Jordan Lake?: Fish species found in Jordan Lake include Panfish, Largemouth Bass, Northern Pike, Trout, Walleye. Jordan Lake is located in Adams County, Wisconsin.
What did the DNR fisheries survey find at Jordan Lake?: Wisconsin DNR rates Largemouth Bass and Northern Pike as abundant on Jordan Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Jordan Lake’s water-quality measurements separately, and the water-quality trend over 7 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Jordan Lake?: Jordan Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Jordan Lake. Public access is listed as yes.
Can I fish at Jordan Lake?: Jordan 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 Wisconsin's fish and wildlife agency, so check its current regulations before you go.

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State Parks Near Jordan Lake

Rocky Arbor State Park

State Park · 10.5 mi

Mirror Lake State Park

State Park · 14.9 mi

Roche-a-Cri State Park

State Park · 19.9 mi

Buckhorn State Park

State Park · 22.4 mi

Other Lakes in Wisconsin

Fenner Lake

Marquette County · 12 ft

East Twin Lake

Marquette County · 3.3 ft

Silver Lake

Columbia County · 8.8 ft

Pleasant Lake

Waushara County · 11.5 ft

Wood Lake

Marquette County · 14 ft

Williams Lake

Marquette County · 6 ft

Mesotrophic Lakes in Wisconsin

Fenner Lake Silver Lake Pleasant Lake Williams Lake

Where this data comes from

133 measurements from 3 monitoring stations, 2020–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

Wisconsin Department of Natural ResourcesWIDNR_WQX133 samples · 2020–2026

Analytical methods

Phosphorus by Colorimetry

Monitoring station identifiers (3)

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.