'''Mwamashimba''' ni kata ya [[Wilaya ya Maswa]] katika [[Mkoa wa Simiyu]], [[Tanzania]] yenye [[postikodi]] [[namba]] '''4561439303''' <ref>https://www.tcra.go.tz/images/documents/postcode/taboratzPostcodeList.pdf</ref>. Kwa mujibu wa sensa iliyofanyika mwaka wa [[2012]], kata ilikuwa na takribantakribani wakazi wapatao 9,421 waishio humo.<ref>[http://www.wavuti.weebly.com/uploads/3/0/7/6/3076464/census20general20report20-202920march202013_combined_final20for20printing1.pdf Sensa ya 2012, Simiyu Region - Maswa District Council]</ref> [[Msimbo wa posta]] ni 39303.
