Though what is pertinent is Twainsville's plodding productivity (due to low population)
Is the system only checking current productivity (16% I think...plodding) or the productivity relative to population (IE I think given the population limit its working near 100% and only limited by population leaving it at overall 16%).
If it is just taking the straight overall productivity value then Twainville is looking BAD especially since the Twainwood region is at "Good" productivity.