That data doesn't appear to have personal names or anything else that can be used to connect them to a specific individual.

It's just all the addresses they deliver to with things like building type, schedules, route ids, etc.

NCOALink data has the names and addresses, but apparently only if someone already has the name and old address, and pays the fee.

"We do not disclose your personal information to anyone, except in accordance with the Privacy Act.”

Exception: "if already in possession of your name and old mailing address"

Edit: spelling and such

Probably also voter registration information in your state. And I'm sure there are real estate databases. And while much less applicable with the decline of landlines, most people's addresses used to be published annually in the white pages delivered to everyone. Your address just wasn't considered to be sensitive information for the most part historically.

I don't want to buy government records, I want to pay no more than a reasonable data copying fee. I've already paid my share as a tax paying citizen.

The taxes you paid don't fund USPS though.

To be pedantic, I pay federal taxes which are then loaned to the USPS with no expectation of being paid back, as well as P.O. box fees because the nearest no-fee pickup is at the county seat, as well as subsidizing the USPS exemption through local property taxes that have to absorb that overhead.

None of which are delivery related.