I'm wary of population growth figures that consider 'Ipswich City' as a whole. If I'm not mistaken, this is a huge area, including Springfield which surely accounts for most of the actual and predicted growth.
Ipswich has some lovely pockets, my mother-in-law has a landmark property on a hill there somewhere and I enjoy visiting.
But I also remember working there a year, and myself and all the other professionals used to commute from Brisbane (i.e. the richer folk just weren't hanging around to drive prices up imo).