Issuance Of Coins

S Mint coins are not distributed to banks for circulation. It is difficult to figure out the rest. I've found here in the Mid West we usually get all D Mint coins for a long period of time. Then later in the year the Philly ones start to appear but are usually worn from circulation. makes no CENTS to me since we are close to Philly. I've heard of similar situations from people in Arizona telling me they always see the Philly ones first and the Denver coins much later in the year and also worn.

typically everything west of the mississippi river gets the d and everything east of the river gets the p...at least that's what I'm told

I have the same problem as karrlot I can get rolls of pres dollars from the bank but I cant tell the mint mark on them, granted I live in Delaware they are probably P's, but it would be nice to know.
I also have a question about when new coins get rolled by by companies like the one in Harrisburg PA do they roll all one mint mark in one roll or do they mix them up, and how do the people at the coin shop in my city know what mint marks are in those rolls that they sell, most of them are wrapped by that company in Harrisburg PA I forget whats its called.