Council Bluffs

Image via Google Maps: g.co/maps/8brdy

Estimated server count: 241,280

This data center was announced by Google in early 2007 and became operational in early 2009. It looks the same size as The Dalles but housed in a single building instead of two. I am guessing the building is densely packed with containers - leaving space in the middle for cooling machinery.

Return: All Google data centers

Council Bluffs

Google's own page about this data center: google.com/datacenters/council-bluffs