I can also recommend York County for those residents of Delaware seeking a PA LTCF. Mine was about to expire (February 2021) and I wanted to take care of it early. I mailed in my application, along with the necessary supporting documentation and the $20 fee. I received an email twelve days later, informing me the permit was ready to pick up. The drive is long, but the weather was pleasant and the traffic light. I might suggest parking in the courthouse garage ($0.75 for thirty minutes or less, which should be more than enough time).
There was no line and no wait inside. You will be reminded of your obligation to notify the Sheriff's office when your Delaware permit expires, or is renewed. I'll repeat that again - when your Delaware carry permit is renewed, you MUST provide the York County Sheriff's office with a colored photocopy of the renewal permit. Failure to do so will result in forfeiture of your PA LTCF.
This last part was of particular noteworthiness to me. My DE and my PA permits are both valid for five years, but about 18 months separate the expiration dates.