States

Geist Reservoir

At Indianapolis, IN · Indiana · USGS gauge
782783784785786
Water level · NAVD88
784.46FT
Gauge elevation · no % full published
7 days −0.03 ft30 days −0.04 ftvs last year +0.51 ft
Reading for Oct 25, 2026, 17:45 UTC · page refreshed Oct 25, 21:16 UTC
Source: U.S. Geological Survey (Water Data for the Nation)
Worth going today?This Afternoon
Looks good
Light wind, dry
Wind5 mph
Rain0%
Temp73°F
Level784.5 ft
This AfternoonSunny · 73°F
SSE 5 mph · rain 0%
TonightPartly Cloudy · 45°F
SE 0 to 3 mph · rain 1%
NWS forecast for the gauge location. Good = wind ≤ 10 mph and rain ≤ 30%; storms are flagged. Not safety advice – check local conditions, closures and warnings.

Field notes

Geist Reservoir's latest daily level (Oct 25, 2026) is 784.46 (NAVD88) ft.

The level has been roughly steady over the past week (−0.03 ft).

Compared with a year ago (783.95 ft, same time of day), the lake is 0.51 ft higher.

Readings come from the USGS gauge “GEIST RESERVOIR AT INDIANAPOLIS, IN”. Gauge elevations are not directly comparable between lakes because each uses its own datum.

Lake facts

Gauge / stationGEIST RESERVOIR AT INDIANAPOLIS, IN
Elevation datumft (NAVD88)
Gauge location39.9054, -85.9821

Nearby lakes

Morse Reservoir12 mi N808.86 ft−0.13 ftEagle Creek Reservoir18 mi W788.38 ft−0.11 ftMississinewa Lake56 mi N736.68 ft−0.91 ftCagles Mill Lake57 mi SW637.95 ft−1.21 ftCecil M. Harden Lake59 mi W658.25 ft−3.54 ft

Common questions

Is Geist Reservoir rising or falling?

Over the last 7 days it changed −0.03 ft and over 30 days −0.04 ft.

How full is Geist Reservoir?

USGS publishes the water surface elevation for this gauge but not a percent-full figure, so we don't show one rather than estimate it.

How often is this page updated?

The page is rebuilt automatically every day from USGS's published data. Values can be revised later by the source agency.

Where does the data come from?

The U.S. Geological Survey's Water Data API (api.waterdata.usgs.gov), which publishes readings from USGS and partner gauges. Forecasts come from the National Weather Service.

Latest instantaneous reading; 7-day, 30-day and year-ago changes compare readings at the same hour. USGS data are provisional and subject to revision. This page is not affiliated with or endorsed by the USGS. See data sources.