What is the water quality grade for Shawnee Mission Lake?

Shawnee Mission Lake in Johnson County, Kansas received a water quality grade of C (Fair). Water clarity: 4.3 ft visibility. Chlorophyll-a (algae): 9.7 µg/L.

Is Shawnee Mission Lake safe to swim in?

Generally safe for swimming, moderate water quality. Shawnee Mission Lake has an overall water quality grade of C. Algae concentration (chlorophyll-a) is 9.7 µg/L. Always check local health department advisories before swimming.

Johnson County, Kansas

Shawnee Mission Lake

Grade CFair · 4.3 ft clarity

Find places to stay →

Limited DataEutrophic

Shawnee Mission Lake is a productive, nutrient-rich eutrophic lake in Johnson County, Kansas. Water quality is graded C based on 1 sampling years through 2015. Compared to the 18 other monitored lakes in Johnson County, Shawnee Mission Lake ranks #3 for water quality.

Source: EPA Water Quality Portal sampling records, Kansas DNR, last sampled 2015-08-12. Grade methodology: LakeGrade methodology.

Watch Shawnee Mission Lake water quality

Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.

Swimming Safety

Generally safe for swimming, moderate water quality

Compare the safest swimming lakes near Kansas City →

Water Quality Grade: C, Fair

Murky, only visible to about 4.3 ft. Chlorophyll-a: 9.7 µg/L. Trophic State Index: 55.

Metric	Value	Grade
Water Clarity (Secchi Depth)	4.3 ft	D
Phosphorus	No data
Chlorophyll-a (Algae)	9.7 µg/L	C
Trophic State Index (TSI)	55	Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Shawnee Mission Lake

Compare lakeside cabins, hotels, and vacation rentals near Shawnee Mission Lake in Johnson County, Kansas — 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 Shawnee Mission Lake

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 trip to Shawnee Mission Lake?

Get lake water-quality report cards plus the best cabin & lodging deals near Shawnee Mission Lake — straight to your inbox. No spam, unsubscribe anytime.