been there for a year or two, gatshead is a very yiddishe area, its not really chasidish its mainly just very frum, yeshiva bochur type. its a very small area the jewish area (bensham) but theres still a good few thousand families and hundreds of bochurim from the different yeshivas, theres a cotsworth road where theres a kosher bakery and kosher shops. its also about ten minutes drive from the largest shoping centre in europe (metrocentre).
gateshead as a whole is a bit of a dump and not the safest place to be walking through at night.
the nearest other cities with large jewish communities are manchester (about 3 and a half hours drive away) or london about 4 and a half hours drive south away
anyway i hope that answered your question, anything else just ask