How much is Copper wire worth?

It brings good money. There’’s a dumpster diving guy in Houston who found discarded copper water filters from a water treatment plant. They were used so long that they had turned green. He got them out of the dumpster and they brought hundreds of dollars. I think over $450 just for those 4 filters. He takes the copper pipe off of every discarded water heater, and other things like wires and separates it. Copper sells for the most money of all the metals he recycles. The current price is $5.00 per pound or lower depending on the grade of the copper. There are several grades.

We had a vacant rental that had some of its copper wires removed

Go try to sell some and find out.

It is about to get worse

Drug addicts steal it.

Must be quite decent. Scrappers go wild on anything vacant for a length of time. They're rather dangerous when urbexers cross them while exploring.

Closed shopping malls were a big target across the U.S for a while.

Hydro supply yards; even electrical transformers, are a target sometimes also, with tragic outcomes.

People steal that shit , go sell it, and use the money to make meth.

About as much as a tweaker can get for it.