Yes, and by a healthy margin. Roughly 48 recorded incidents for every thousand residents in the past twelve months. That is about a third below the Lewes district average of around 72. The town logged approximately 1,140 recorded incidents across the same period. For a town of 24,000, that is a light book by any reasonable south-coast comparison.
The Lewes district as a whole runs at about 72 recorded incidents per thousand residents. Seaford, as one of the district's larger population centres, pulls the district average down rather than up. Both figures are published rates calculated on a statistical-area population base, which is not the same as dividing the incident count by the town's resident headcount. Those two calculations use different denominators and give different answers, which is why the arithmetic that circulates on local social media occasionally proves the town is going down the drain when the actual published rates say the opposite. The measure covers everything the police record: burglary, vehicle crime, criminal damage, antisocial behaviour, violence against the person. It is not filtered by severity. It also does not tell you which streets or which hours any of it clusters on, which is where the specific local-safety question actually lives. At the town-scale composite, the current figures put Seaford in the low-to-mid forties per thousand, which is quiet even by East Sussex coastal standards, never mind by the standards anyone bringing children out of London is used to. A coastal town where the median resident is 55, roughly a fifth of households are single pensioners, and three-quarters of homes are owner-occupied does not tend to run a dynamic crime profile. The demographic and tenure profile is a big part of why the crime figures look the way they do.
On the published measure, Seaford sits comfortably in the safer half of towns along the East Sussex coast. Anyone moving here from a city will spend the first month recalibrating what they used to think of as background noise, and the town has been like this long enough that nobody who lives here is particularly surprised by the ranking.