Updated April 2026 · FBI UCR 2023 data
Crime Data Guides
Long-form, plain-English guides to interpreting FBI Uniform Crime Reporting data, evaluating per-capita crime rates, and using safety statistics for relocation decisions. Every claim is anchored in the FBI's published figures, not speculation. Each guide assumes no background in statistics or criminology.
Why Context Beats Counts
The single most common mistake in popular crime coverage is comparing raw incident counts across cities of different sizes. The U.S. Department of Justice and the FBI both publish per-capita rates for exactly this reason: a city of two million residents that reports more total burglaries than a city of 50,000 is almost always safer per resident — but the raw count tells the opposite story. Every guide here works in the FBI's standard unit of incidents per 100,000 residents, the only fair basis for cross-city comparison.
The second most common mistake is treating a single year as a trend. Year-to-year UCR figures are noisy, especially during the FBI's ongoing migration from the legacy Summary Reporting System to NIBRS. The guides linked below cover how to read multi-year trends, how to handle the gap between reported and actual crime (the so-called "dark figure of crime" tracked by the Bureau of Justice Statistics), and what to look at on a city page beyond the headline rate.
Featured Guides
How to Read Crime Statistics Without Being Misled
A practical guide to interpreting FBI crime data correctly, per-capita rates vs raw counts, what the numbers actually measure, and the most common mistakes people make when reading crime statistics.
Is My City Safe? How to Use Crime Data for Relocation Decisions
How to evaluate a city's safety using per-capita crime rates, trends, and context, a data-driven framework for anyone considering a move.
Why Crime Rates Rise and Fall: Understanding Crime Trends
The forces behind crime rate changes, from the Great Crime Decline to recent fluctuations. What drives trends, what the data shows, and why context matters more than headlines.
How to Use These Guides Alongside the Data
Pair each guide with the data tables that demonstrate the concept. After reading the per-capita-rate guide, the safest-cities ranking shows the same logic applied to the FBI's full city dataset. After reading the trend guide, the cities getting safer and cities with rising crime rankings show 5-year movement at the extremes. The methodology page documents how the Safety Context Score combines all three signals.
Each guide also links to the relevant entries in our glossary, which covers 30+ crime statistics terms — from per-capita rate and crime trend to NIBRS, hot-spot policing, and the dark figure of crime.
Frequently Asked Questions
Who are these guides for?
Anyone who wants to read crime statistics carefully — homebuyers and renters evaluating a city, journalists and researchers checking a claim, or residents trying to make sense of local headlines. Each guide assumes no statistical background and explains the FBI Uniform Crime Reporting categories in plain language.
What's the most common mistake people make with crime data?
Comparing raw counts across cities of different sizes. A city of two million reporting more total burglaries than a city of 50,000 is almost always safer per resident, but raw counts make the larger city look worse. The "Reading Crime Statistics" guide covers this and a half-dozen other common pitfalls — using FBI Crime Data Explorer terms correctly, the difference between violent and property crime, and how unreported crime affects what UCR data shows.
How do these guides relate to the city pages?
Every city profile on CrimeContext shows per-capita rates, national-average comparisons, and a 5-year trend. The guides explain what those signals mean — when a high rate is concerning versus simply reflecting a large city's reporting completeness, and how to weight a current rate against a multi-year trend. Each city page links back to the relevant guide for deeper context.
Are these guides updated as new FBI data comes out?
Each guide is reviewed when CrimeContext ingests a new FBI UCR release (typically once per year). Substantive figures, like the U.S. national averages used for comparison, are kept in sync with the latest FBI estimate. The current build references FBI UCR 2023 data, last refreshed April 2026.
Where else should I look for crime context?
For policy and victimization context, the Bureau of Justice Statistics publishes the National Crime Victimization Survey, which captures crime that goes unreported to police — typically more than half of violent crime and roughly two-thirds of property crime. The FBI Crime Data Explorer is the best primary source for the agency-level UCR data underlying our city pages.
Need a quick definition?
The CrimeContext glossary covers 30+ crime statistics terms, from per-capita rates and the FBI UCR program to hot-spot policing and the dark figure of crime.
Browse the Glossary →Sources: Federal Bureau of Investigation, Uniform Crime Reporting Program (2023), accessed via the FBI Crime Data Explorer. Reporting context from the Bureau of Justice Statistics. Public domain.
Last refreshed 2026-04-06 · FBI UCR 2023 data.