My dad let me look through his pile of change a while ago and did find a single one from Philadelphia. Nowadays I rarely see pennies, period, of any date. Most retailers don't have any and even the bank has signs up saying they usually don't have many, if at all. The true last year of US pennies may actually end up being this year (maybe; the legislation that ended them says they can still be made for "numismatic purposes" basically whenever they feel like; but nothing firm has been stated about their intentions past this year) but 2025 will always be the last year they were made for circulation, unless they change their mind in the future (quite unlikely; it's easier to justify stopping the minting of a coin than to start it up again). So I think a lot of people are trying to hoard whatever 2025's they find. But they're minted in the millions, so there's still a few out there, wherever you can find pennies at all. If anyone can even find pennies to search, definitely save any 2025's you find; will be in demand for quite some time I think.
645mm D and 655mm (P) - over 1.3 BILLION were minted, so they are out there somewhere. My bank still has rolls; I get two every week or so from them, but I haven't searched cents for over a year so no idea what I have at this point.
