Saylorville Lake Water Level Today
Iowa · near Johnston · In the flood pool
- Elevation
- 837.18 ft
- From full pool
- +1.18 ft
- Percent of pool
- n/a
- 24-hour change
- +0.22 ft
- 7-day change
- +0.11 ft
- Reading
- Sep 21, 2026 · USACE
Last year at Saylorville Lake
Saylorville Lake is 1.18 ft above full pool, at 837.18 ft, in its flood pool, up 0.22 ft in the last 24 hours. The top of the flood pool is 52.8 ft higher, at 890.00 ft.
Over the last 7 days the level rose 0.11 ft, and over 30 days it rose 1.04 ft. In the 399 days of readings on this page the high was 840.09 ft on Jan 26, 2026 and the low was 835.77 ft on Apr 19, 2026, a range of 4.32 ft.
The reading is the U.S. Army Corps of Engineers gauge at Saylorville Lake Reservoir, near Johnston, taken Sep 21, 2026 and referenced to the NGVD29 datum. This page is rebuilt once a day from the agency feed; it is not a live gauge, so during a fast rise or a scheduled release check the USACE page for hourly values.
Saylorville Lake pool elevations
| Current elevation | 837.18 ft |
|---|---|
| Full pool (top of conservation) | 836.00 ft |
| Top of flood pool | 890.00 ft |
| Top of dam | 915.50 ft |
| Inflow | 4,733 cfs |
| Outflow | 4,427 cfs |
| 30-day change | +1.04 ft |
| 1-year high | 840.09 ft (Jan 26, 2026) |
| 1-year low | 835.77 ft (Apr 19, 2026) |
| Vertical datum | NGVD29 |
| Operating agency | U.S. Army Corps of Engineers, MVR district |
Source: U.S. Army Corps of Engineers. Read what full pool and flood pool mean.
More lakes in Iowa
- Lake Red Rock 747.17 ft, +5.17 ft from full
- Rathbun Reservoir 905.81 ft, +1.81 ft from full
Saylorville Lake level questions
What is the water level of Saylorville Lake today?
Saylorville Lake is at 837.18 ft as of Sep 21, 2026, +1.18 ft relative to full pool (836.00 ft). The 24-hour change is +0.22 ft.
What is full pool at Saylorville Lake?
Full pool, the top of the conservation pool, is 836.00 ft (NGVD29). Above that, water is stored temporarily in the flood pool up to 890.00 ft.
Is Saylorville Lake rising or falling?
Over the last 24 hours the level is +0.22 ft; over 7 days it rose 0.11 ft, and over 30 days it rose 1.04 ft.
Where does this Saylorville Lake level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for Saylorville Lake Reservoir. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.