They're somewhere in the same county I am at - same rate I pay, and there is a TON of mining activity here and in the next 2 counties over where the rate is close to (or UNDER) 3 cents/kwh due to the very cheap electric cost.

Our rate here DID just go up a bit though - it's closer to 4.7 now than 4.6 with ALL costs included.
Local PUD (and the 2 in those "next counties overs) EACH owns one or more major Columbia River power dams - and subsidizes local rates somewhat through the sale of excess electric production to other areas that will pay quite a bit more and STILL saves money over their own local generation.
I call Central Washington State "the land of VERY VERY low cost electric" for a reason.

Yes, the US average is closer to 12, but you can find places to host gear in the area I'm in that will charge you 5-7 range including hosting fees and internet access etc.