HILLSDALE Lake water level

Of full pool
99.9%
▼ 0.6 points since September 27, 2026

▲ 2 points from 97.9% a year ago

0%100% full
Current elevation
916.68 ft
Reading as of
Sep 30, 2026

Source: waterdata.usgs.gov/monitoring-location/USGS-06914995, accessed October 1, 2026. Updated every 6 hours.

HILLSDALE Lake is at 99.9% of full pool (916.68 ft) as of September 29, 2026. HILLSDALE Lake was last full on September 28, 2026 (100% of normal storage). HILLSDALE Lake is near Hillsdale, Kansas.

HILLSDALE Lake level history

Last full
September 28, 2026
100% of normal storage
Highest since 1982
929.34 ft
June 7, 2019
Lowest since 2004
913.18 ft
January 26, 2013, counted after it first filled
Data covers
1982 to today
from May 1, 1982

This site counts a reservoir as full on a day its storage is at or above 95% of the dam's normal storage (National Inventory of Dams). Many reservoirs rarely reach 100%, even in wet years, because operators release water for irrigation, power or flood control before they fill, so this site treats 95% as full. Highs and lows are daily readings in the published data, not official records. Source: USGS daily data.

Storage, % of full pool, since 2002

HILLSDALE Lake storage, percent of full pool, since 2002: 84.7% on October 6, 2002, 100% on September 28, 2026.

HILLSDALE Lake is falling: 100% full, down 0.5 percentage points since September 27, 2026.

On this same date last year (September 28, 2025), HILLSDALE Lake was 97.9% full, 2.1 percentage points lower than today's 100%.

Weekly averages of the source's daily readings; older years may be monthly or sparser where that is all the source published. Download the charted data (JSON).

Latest
100%
September 28, 2026
Previous reading
100.5%
September 27, 2026
Same date last year
97.9%
September 28, 2025

HILLSDALE Lake is at 38.6592, -94.8986. Open in OpenStreetMap.

Open in Google Maps Directions

The dam

Height
105 ft
Built
1981
Name
Hillsdale Dam
Operator
US Army Corps of Engineers

Sources: nid.sec.usace.army.mil, accessed September 29, 2026

On the water

No campgrounds, boat ramps, or swim spots linked to HILLSDALE Lake yet.

Common questions

HILLSDALE Lake is at 99.9% of full pool (916.68 ft) as of September 29, 2026.
HILLSDALE Lake was last full on September 28, 2026, when it held 100% of its normal storage (elevation 916.7 ft). This site counts a reservoir as full on a day its storage is at or above 95% of the dam's normal storage (National Inventory of Dams). Many reservoirs rarely reach 100%, even in wet years, because operators release water for irrigation, power or flood control before they fill, so this site treats 95% as full. Based on USGS daily data since October 1, 2002.
In USGS daily data since May 1, 1982, HILLSDALE Lake's highest elevation was 929.34 ft on June 7, 2019. Its lowest after it first filled (March 4, 2004) was 913.18 ft on January 26, 2013. These are the highest and lowest daily readings in the published data, not official records.
HILLSDALE Lake is near Hillsdale, Kansas (38.6592, -94.8986).
US Army Corps of Engineers operates the dam at HILLSDALE Lake.
HILLSDALE Lake's dam is used for Flood control, Recreation, Water supply.