Deer Creek Reservoir

As of September 7, 2026, Deer Creek Reservoir is filled to 48.9% of its total capacity, holding roughly 92 hm³ of water out of a maximum 188 hm³. At this level the reservoir is within its normal operating range.

Over the most recent week on record the fill level has held broadly steady (-1.0 pts), and it is 13.3 points below its level on the same date a year earlier.

Across the readings we hold for Deer Creek Reservoir — 1822 data points between September 12, 2021 and September 7, 2026 — the level has ranged from a low of 38.6% (October 19, 2022) to a high of 98.4% (June 19, 2023). On average the reservoir is fullest around May and at its lowest around October.

It is operated by BOR primarily for multiple purposes. It lies within the Utah basin at 40.435°N, 111.500°W.