Side-by-side crime statistics from official UK Police data.
PO4 · Portsmouth
520
crimes in February 2026
Above national average
PO20 · West Sussex
1
crimes in February 2026
Below national average
Sidlesham has less crime — 1 vs 520 incidents in February 2026.
Portsmouth recorded substantially more crime than Sidlesham in February 2026 — 520 incidents compared to 1, a 520.0x difference. Both areas share Violence & sexual offences as their most common crime type, though Portsmouth records significantly more (202 vs 1 incidents). Portsmouth sits above the national average for recorded crime while Sidlesham is below — a significant gap for anyone weighing up the two.
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Based on February 2026 Police data, Sidlesham recorded fewer crimes than Portsmouth — 1 vs 520 incidents. That is 100% fewer crimes. Sidlesham is also below the national average for crime.
Both areas share Violence & sexual offences as their top crime category. In February 2026, Portsmouth recorded 202 incidents of this type vs 1 in Sidlesham. Overall, Sidlesham had fewer total crimes (1 vs 520).