[bombcar]

Once it's built, it basically runs itself.

You have a guard, some remote hands, maintenance, maybe additional security or two, times 4 for the various shifts. 30 sounds about right.

Even 20 years ago the datacenters I worked with often had fewer employees onsite than "visitors" - because they rented out racks.

[physhster]

You're confusing colos and first-party data centers. A colo mostly relies on its customers for installs and maintenance. Google, MS, FB, Apple etc own the entire building so all the functions are local: server install and maintenance, network install and maintenance, generator maintenance, electricians, water treatment in some cases... That's very easily in the hundreds if not thousands for big sites.

Count the cars here: 36.242186561973, -95.32619746715035

[pixl97]

Yep, and anything outside of that is contracted groups that come in from outside. Maybe a hotel in the area would get a little more business, but it won't be much.