Project Osmium Microsoft
An operating Microsoft data center site in Warren County, IA, mapped in OpenStreetMap and the IM3 Open Source Data Center Atlas. 5 buildings totaling about 1,220,000 square feet are mapped.
Data centers in Warren County
We track 2 projects inside Warren County and 12 more within 25 miles of it. For a distance-specific answer, check your own address.
In Warren County
Microsoft's Project Osmium is a 200 acre data center campus straddling northern Warren and Madison counties on the edge of West Des Moines, part of a 1.5 to 2 billion dollar investment. City leaders said Microsoft would not receive a property tax abatement for this campus, and instead its property taxes would help pay for nearby streets, sewers and water lines. It is one of three Microsoft data center campuses built in the West Des Moines area since 2008, alongside the newer Ruthenium project.
Within 25 miles of Warren County
Project Osmium Microsoft
Microsoft Microsoft
Project Alluvion Microsoft
Microsoft Microsoft
Apple Waukee Data Center Apple
Aureon Operator not disclosed
Apple Apple
Edged Ankeny Data Center Edged
Lightedge Des Moines Operator not disclosed
Power bills in Warren County
Most of the county is served by MidAmerican Energy.
MidAmerican Energy is asking the commission for a 5.2% residential increase (MidAmerican Energy natural gas rate increase (docket RPU-2026-0001)). On a $58 monthly bill that is about $3 to $5 a month. This case does not set rates directly, but the new solar plant it approves will eventually be paid for through customer rates, and MidAmerican has said data center growth is a major reason it is needed.
MidAmerican Energy's proposal would raise a typical residential customer's monthly natural gas bill by about 2.89 dollars, roughly 5 percent, and a temporary interim rate increase subject to refund has been in effect since around July 17, 2026. The Iowa Utilities Commission held public consumer comment meetings on September 8 in Cedar Rapids, September 9 in Des Moines and virtually, and September 10 in Sioux City, all in 2026, where MidAmerican reiterated its request; no settlement or decision date has been reported, and the company's prior gas rate case took roughly nine months from filing to a final order.
Every Iowa rate case in dollars a month, with hearing dates: willmybillgoup.com, our rate case tracker.
Alerts for Warren County
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