Crime · Delaware
Crime in Delaware
Crime (FBI UCR) data for ZIP codes in Delaware. Pick a ZIP below to dive into the crime summary.
Last verified 2026-05-13 · methodology
What lands here
Pages show per-100k rates (never raw counts) for major offense categories, the reporting agency, and whether reporting was complete for the year.
Source & refresh
FBI UCR. Refreshed weekly rolling uploads. Primary source →
Delaware top concern
Sea-level rise, agricultural runoff
Delaware has the lowest mean elevation of any US state and FEMA NFHL coverage extends well inland in Sussex County. Agricultural runoff in poultry-heavy regions affects EPA SDWIS small-system nitrate readings. Lead-service-line inventories statewide are nearing 2024 LCRR baseline.
See Delaware state page for the full state-level rollup across all 12 dimensions.
Read more on crime
Editorial deep-dives explaining the source data, its limits, and how to read it.
FBI UCR and NIBRS — what crime statistics actually show (and don't)
The FBI's Uniform Crime Reporting (UCR) program and its successor NIBRS aggregate crime data from local agencies. Plain-English guide to what gets reported, what doesn't, and how to read the numbers.
Reading FBI UCR national crime trends — what 2020–2025 actually shows
Plain-English guide to recent US crime data: the 2020 spike, the 2021–2024 normalization, and how the UCR-to-NIBRS transition complicates year-over-year reads.
Data staleness — when to re-check zipradar before making a decision
Federal data refreshes on different cadences. Here's when zipradar's snapshot is fresh enough for your decision and when you need to verify with the primary source.