waterbycounty

Data centers and water

Data Center Water Use in Warren County, IA

Warren County, Iowa has 7 mapped data center facilities, including Microsoft, carrying about 982 MW of estimated power load.

Microsoft

Water pressure for new demandHow hard a large new water user, like a data center, would press on this county's water. It blends recent drinking-water compliance, drought, and existing industrial demand. Higher pressure means new demand competes harder with current uses. It is not a judgment about whether one should be built.

13/ 100

Low water pressure

Warren County has no health violations in the last 5 years, abnormally dry conditions, low existing industrial water demand.

Mapped facilities
7
EPA + OpenStreetMap layers
Estimated power load
982 MW
IM3 Atlas capacity estimate
Permitted discharge
Not reported
Clean Water Act permit fields
DCWSI national rank
#12
of 318 scored counties

The operators

How many data centers are in Warren County?

7 facilities are mapped to Warren County, Iowa across the EPA and OpenStreetMap layers, run by operators including Microsoft. Counts reflect mapped footprint, not an operator's total fleet.

  • Microsoft

    Microsoft · West Des Moines, IA

    OpenStreetMap
  • Microsoft

    Microsoft · West Des Moines, IA

    OpenStreetMap
  • Microsoft

    Microsoft · West Des Moines, IA

    OpenStreetMap
  • Microsoft

    Microsoft · West Des Moines, IA

    OpenStreetMap
  • Microsoft

    Microsoft · West Des Moines, IA

    OpenStreetMap
  • OSMIUM DATA CENTER

    WEST DES MOINES, IA

    EPA ECHO
  • Project Osmium

    Microsoft · 19

    OpenStreetMap

Supply versus demand

How much water do Warren County data centers use?

Exact facility water draw is rarely public. As a screening proxy we compare the Clean Water Act permitted discharge mapped to these facilities against the county's entire industrial water baseline from the USGS 2020 series.

No Clean Water Act permitted discharge is reported for the mapped facilities in Warren County. The figures below show the county's industrial water baseline for context.

Facility discharge vs county industrial water
Mapped facility discharge
Not reported
County industrial baseline
0.18 Mgal/day

Model a build

Can Warren County support more data centers?

On the water-pressure scale, Warren County sits at 13, below the national median, so new large-load demand has more slack here than in most counties. Size a hypothetical build to see the daily draw against the county industrial baseline.

Data Center Water Budget Calculator

Estimate daily water use for a hypothetical facility in Warren County.

1 MW1,000 MW
40%100%
799K gallons/dayHigh Impact

Your facility would use 433.3% of this county's industrial water baseline. Verify water rights and long-term drought projections before committing.

433.3% of county industrial baseline

Based on USGS 2020 water-use data and EPA-standard cooling intensity constants. Not a substitute for site-specific water rights analysis.

In context

How does Warren County compare nationally?

DCWSI build-out rank
#12
of 318 counties with a stress score
Water pressure vs median
-6
national median is 19 of 100
Share of mapped load
0.6%
of 166.02 GW mapped nationally

Warren County is one of 330 US counties with mapped data centers. See the full ranking and the interactive map in the national atlas.

Facility data combines EPA ECHO, EPA Clean Water Act permits, OpenStreetMap, and the IM3 Open Source Data Center Atlas (DOE/PNNL), geocoded to county FIPS. Capacity and water baselines come from IM3 and USGS 2020 water-use data. These are county-level screening figures, not a facility-level water-use audit. Read the full methodology.

By Evan Brooks, Data EditorPublished Reviewed by Evan Brooks, Data Editor