Same city could be a problem?

That depends on what kind of connections they have between each other. Different facilities is not as bad as two in the same facility, but there's still a risk Penpal A could hear about Penpal B through the grapevine. I wouldn't say it's a huge risk that this actually would happen, but it mainly depends on who they know. Then there's the possibility that one of them could get transferred to the prison your other penpal is at, so then they'd both be in the same place and you could have an uncomfortable situation, that's why I don't write more than one in the same state, even though it's not two in the same prison. It's a question of luck really as to whether that will happen or not. Kinda like rolling the dice, nothing is guaranteed to go wrong, but it can and has happened before.

They also get moved to different states a lot, one of my earliest penfriends went from Pennsylvania, to New Jersey and is now in California. So even different states might be a risk. But all should be fine as long as you're being honest if the situation would arise that they'd end up in the same prison together.

As far as I understand, federal level inmates move out of state but state inmates do not. So it would also depend what level of custody they are, unless I’m missing something...??? Its for this reason I don’t write federal inmates, because the existing ones I have are all state level. 

Oh I see... i don’t want to take this risk as you said. 

One of my pp in Deathrow so is it possible to move to another facilities? I hope there is no such thing but probably I won’t take this risk :( 

Sorry I forgot to ask you that how can I know that if my inmate is federal ? Plus what is the difference? I don’t know these things, I’m from different country so

State prisoners get moved too if they apply for a good adjustment transfer. My ex did that and changed prisons almost 2 years ago. It was within the same state, so I’m not really sure if he would be able to transfer out of state. So I’m guessing the risk will always be there. 

Sorry for being silly, but i miss that part, why we should think it as a risk or pay attention? I mean it is about penpal or facilities? 

Moonlampje, that's interesting. As far as I knew, I know state prisoners can be transferred to other facilities within their own state, but I thought it was only federal that can be moved anywhere out of state. My state pals have been transferred but they've never been transferred out of state, and I recall reading something someone else wrote saying federal moves anywhere, state moves only within that state, but I could be wrong. But, that's kinda moot in this case because in the scenario described, the OP's penpals are in the same state already anyway. I was just curious if anyone knew something other than what I've heard. 

applehead, to answer your question. It's a risk because if both of your penpals end up in the same facility, it could pose a safety threat to them if either one or both get mad about it and want to fight each other over it, and it could also result in you losing your friendships with them, especially if they find out from someone in their facility and not you. That's just a couple of the risks. 

It's generally not advisable to write to more than one in the same state, but now that you have, I guess just continue the correspondence and should one gret transferred to your other pal's facility, you will deal with it then. It's not guaranteed it will happen, but you never can be sure that it won't.

Death row doesn't move anywhere, death row inmates are only in whatever facility they are, they stay put where they are. It's non death row inmates who can move.

Also, the way to tell if it's state or federal. Many state prisons have state prison in their facility name, if you write anyone with a facility name that says FCI, that means Federal Correctional Institution, so any FCI in a facility name means they are federal. 

Thank you for information! It helps a lot actually. Yet, my two pp haven't responded to my first letters. -maybe they are on the way I dunno-  but, probably, one of them won't respond to my letter I just feel that way. So, should I tell them I also talk with another inmate? Fact that I did not know that the city would be a problem - just knew the facility issue- so my bad -.-' 

Because it's not guaranteed your penpals will cross paths, you would have to explain the situation if that actually happens, but I wouldn't worry about it now. If you notice sometime in the future that one of your penpals gets transferred to the same facility, then explain it to them. I wouldn't explain it now simply because it might never be a problem. 

If they ask you if you write to other inmates though, if you get asked that question (you might, some do and some don't), be forthcoming and honest about that. Don't give too much detail, never give details that identify who you write to another inmate because that's none of their business and will prevent unnecessary drama, but just say yes I write to one other person and leave it at that. 

ShadeyBiz:
I have not too much experience with State prisoners being transferred, but seeing the fact that they can apply for a good adjustment transfer it might not be too weird to think they can go out of state, right? That's why I feel for myself that there will always be somewhat of a risk of 2 penpals ending up together in the same facility.
But like you said, Club Fed prisonors do get moved around a lot, even more so than state prisoners.

Yes for sure that no need details about whoever I wrote. Thank you again! It made me feel ok now! I was a bit nervous about but. 

In the United States interstate prisoner transfers are dime a dozen at the Federal Level. At the State Level, however, it is a whole other ballgame because the vast majority of States don't do interstate prisoner transfers​; it is only Arizona, California, Hawai'i, Idaho and Vermont​ which send prisoners out-of-state, and - except for Hawai'i​, where about one third of its prison population has been sent out-of-state​ - it involves only a fraction of their prison populations. 

State corrections officials tend to disfavour interstate prisoner transfers their undermining effect on family connections and the disruption they cause regarding rehabilitation efforts; there are also issues with profiteering and staffer incompetence at the private companies which operate the out-of-state for-profit prisons where those inmates are sent to.

​In short: if you adopt the time-tested practice of one inmate pen pal per State and also only one in the Federal Prison System, chances that two or more of your pen pals end up in the same facility are very slim and pretty much negligible​.

^^^This is very helpful information Reynout, I can't remember where I read it but I was sure state prisoners generally don't move out of state, but I learned something new in that five states do indeed send prisoners out of state! Thanks alot for the info, now I know! 

You're welcome!