Western Union only services about half of the facilities in the US. If the facility that your are looking for is not in their drop-down menu then they do not. InmateAid can get you a money order and deliver it to the facility on your behalf where Western Union cannot.
https://www.inmateaid.com/ask-the-inmate/if-you-are-trying-to-send-money-via-western-union-online-but-the-facility-you-need-is-not-listed-what-do-you-do#answer
Accepted Answer Date Created: November 22,2013