Water level
Lake Koshkonong water level
Lake Koshkonong is at 776.57 ft as of Sep 9, 2026. Live readings, trend, history and what the level means for swimming and boat ramps.
Recent readings
Daily values from USGS gauge 05427235.
| Date | Elevation (ft) | Change |
|---|---|---|
| 2026-09-08 | 776.44 | +0.01 |
| 2026-09-07 | 776.43 | -0.01 |
| 2026-09-06 | 776.44 | -0.01 |
| 2026-09-05 | 776.45 | +0.00 |
| 2026-09-04 | 776.45 | -0.01 |
| 2026-09-03 | 776.46 | -0.02 |
| 2026-09-02 | 776.48 | -0.01 |
| 2026-09-01 | 776.49 |
What this level means
The level comes from gauge 05427235, LAKE KOSHKONONG NEAR NEWVILLE, WI, and carries the time it was taken. Over the record shown on the level page the gauge has moved between 775.63 ft and 781.15 ft (low on 2025-11-11, high on 2026-04-24). The last value stored here, 776.57 ft, is from 2026-09-09. When the pool drops, shoreline beaches grow and shallow ramps can run out of concrete.
How this reading is taken
USGS gauge 05427235 measures the water surface and publishes the value continuously. This page stores the latest reading at build time and refreshes the record daily, so the figure above is a real measurement rather than a model or an estimate.
No operating agency publishes a full pool elevation for Lake Koshkonong that we can cite, so this page shows the reading and its trend without a percentage.
Elevations are given in feet above the gauge datum used by the operating agency. Two lakes are only comparable with each other through how full they are, not through their raw elevation, because each dam sits at a different height.
Water level questions
What is the current water level at Lake Koshkonong?
The latest reading is 776.57 ft, from USGS gauge 05427235.
Sources
Every figure on this page comes from one of these public sources.