Green Lake (Green Lake County)
Waterbody ID (WBIC): 146100 — permanent page /lakes/146100/.
Green Lake is in Green Lake County; records show 7,920 acres and 7 DNR access-site records.
- Size
- 7,920 acres
- Lake type
- DRAINAGE
- Max depth
- 236 ft
- Mean depth
- 104 ft
- 7 documented public access site records (DNR access inventory)
- 7 fish species/groups with abundance categories (DNR lake page)
- Fish stocking documented through 2024 (DNR stocking records)
- Summer Secchi clarity median 15.5 ft (field measurements)
- Official DNR depth map available (PDF)
Back to results Show on map Choose access / Directions Depth map (PDF) Check current DNR regulations
Plan your visit
- Lake directory: public landing — Yes
- Lake directory: public beach — Yes
- Lake directory: public park — Yes
- DNR public-access inventory: 7 documented access site records
- DNR public-access inventory: documented developed boat ramp
- 7 sites qualify for per-site Directions through the reviewed lake association (load the site details below)
Each statement is bounded to its named source; absence of a record is never evidence of no access. The DNR access database may lag reality; posted signs at the landing are authoritative.
Verify at the DNR public boat access program page.
Documented public access sites — load details
Open to load this evidence family.
Fishing
The DNR lake page publishes 7 fish species/groups with abundance categories — categories are source labels, never a population count.
DNR fish labels: Catfish—Common; Smallmouth Bass—Common; Trout—Common; not population counts.
Stocking records: 195 documented events through 2024, 108,083,321 fish total. Species: Walleye (Frequent), Trout (Frequent), Muskellunge And Hybrids (Frequent), Northern Pike (Historic), Bluegill (Historic), Largemouth Bass (Historic), Crappies (Historic), Channel Catfish (Historic), Brook Trout (Historic), Lake Trout (Historic). Events in 2015 or later count as recent.
No fisheries survey population estimate is published for this lake in the covered report families.
- Musky angling class — 2018 historical publication, not current status: Musky A1 — DNR trophy-water class
Fishing limits — 2026-2027 season: 19 normalized rows across 19 species entries. Normalized from the DNR ruleset retrieved 2026-08-04. Source text remains authoritative.
Fish species and abundance detail — load details
Open to load this evidence family.
Detailed stocking history — load details
Open to load this evidence family.
2026-2027 retained fishing rules: 19 published rows for 19 species; effective through 2027-03-07. Check current DNR rules.
Normalized fishing-regulation rows — load details
Open to load this evidence family.
Water and setting
- Field-measured summer Secchi clarity: median 15.5 ft from 79 samples, latest sample 2025-08-19
- Satellite clarity estimate: 13.42 ft (2017) — a remote-sensing estimate, kept separate from field measurements
- Lake directory clarity class: Moderate
Official DNR depth map (PDF) — Historical lake map; not for navigation. Link checked 2026-07-16.
- AIS record: Curly-leaf pondweed — Verified (vouchered), latest documented 1969-07-11
- AIS record: Eurasian watermilfoil — Verified (vouchered), latest documented 1969-07-01
- AIS record: Hybrid Eurasian / northern watermilfoil — Verified, latest documented 2010-10-08
- AIS record: Purple loosestrife — Verified (vouchered), latest documented 2006-01-01
- AIS record: Rusty crayfish — Verified, latest documented 2005-12-31
- AIS record: Zebra mussel — Verified, latest documented 2001-01-01
Occurrence records come from a non-exhaustive DNR inventory; a record documents presence at observation time and a missing record is never evidence of absence.
- Public-land proximity (GIS proxy, not access evidence): mapped public land within 1,000 ft; nearest: Statewide Habitat Areas (Wisconsin DNR); ≈2.7% of shoreline buffer
- Shoreline development (landcover proxy, 2025 source): ≈40.1% developed land within 300 m, ≈8.9% impervious
- Road proximity (TIGER proxy, 2025 source): nearest local road or city street ≈0 m; ≈3.6 km of road per km² within 1 km
- Mapped critical habitat: 8 sensitive-area polygons — ≈503.6 ac (≈6.4% of lake area), partial-waterbody scope
- Priority Navigable Waterway — basis: lake under 50 acres
Designations are legally defined DNR records shown as their sources state them; no composite rating is implied.
Measured and satellite clarity records — load details
Open to load this evidence family.
Aquatic invasive species records — load details
Open to load this evidence family.
Data & sources
Published data families
- Fish species and abundance (DNR lake pages)
- Fish stocking history
- Fishing regulations (normalized snapshot)
- Directory access facts (landing, beach, park)
- Public access site inventory
- Satellite water clarity estimate
- Field-measured Secchi clarity
- Aquatic invasive species occurrences
Original records: Wisconsin DNR lake page.
Missing values are unpublished, never zero; each fact above is bounded to its named source and date. Full sourcing detail: Data & methods.