Safe enough that the data agrees with the residents. About 64 incidents per thousand residents over the last twelve months. Roughly a quarter below the Havant Borough average. A town this size on the south coast does not usually look this clean on the police map.
The Havant Borough averages around 85 incidents per thousand residents over the same period, which makes Waterlooville the quieter end of a borough that already runs in the lower half of the south-coast distribution. About 2,800 recorded offences a year is a meaningful absolute number, but the per-thousand rate of around 64 lands well below the borough mean. The figure is what a town of this size and shape should produce: residential estates filling most of the map, one busy precinct in the middle, and little of the night-time economy that lifts crime numbers in coastal Portsmouth a few miles south. Some of the quiet is demographic. The median resident here is in the mid-forties, ownership runs at about seven in ten, and the share of households with two or more cars is just under half. Towns shaped that way produce the kind of crime stat that takes a while to look exciting. The deepest historical headline is that a coach-load of soldiers returning from Waterloo in 1815 stopped at the pub here, celebrated their victory, and many of them stayed. The town took its name from them. Since then the only public events of note have been a peace camp near the GEC Marconi torpedo plant in the early 1980s and a free music festival at Old Park Farm called Torpedo Town. None of those were crimes.
Safety is one of the cleaner parts of Waterlooville's picture. The data does not flatter the town. It reports what is there, and what is there is a town that lives quietly inside a quiet borough.