Arlington Heights, IL vs Naperville, IL: Crime Rate Comparison (2025)
A side-by-side look at reported crime in Arlington Heights and Naperville, on the FBI-based Crime Index (0–100, higher = safer) for 2025.
Arlington Heights is the safer city
Arlington Heights scores 93/100 (grade A) versus 92/100 (grade A) for Naperville — a 1-point gap. Naperville's violent-crime rate is 1.8× Arlington Heights. Across the 8 offense categories, Arlington Heights has the lower rate in 4.
Arlington Heights, IL
SaferCrime Index
- Population
- 75,155
- Violent / 100k
- 38.6
- Property / 100k
- 760
- In Illinois
- #3 of 29
Naperville, IL
Crime Index
- Population
- 154,062
- Violent / 100k
- 70.1
- Property / 100k
- 563
- In Illinois
- #4 of 29
Crime rates head-to-head
| Metric | Arlington Heights | Naperville | US average |
|---|---|---|---|
| Crime Index (higher = safer) | 93A | 92A | 73C |
| Violent crime /100k | 38.6 | 70.1 | 315 |
| Property crime /100k | 760 | 563 | 1,487 |
| Homicide /100k | 1.3 | 0 | 4.1 |
| Total reported /100k | 798 | 634 | 1,802 |
Grade shown per index band (88–100 = A … 0–29 = F). Rates are reported offenses per 100,000 residents.
By offense
Rate per 100,000 residents — the lower (safer) city is highlighted.
| Offense | Arlington Heights | Naperville |
|---|---|---|
| Homicide | 1.3 | 0 |
| Rape | 8 | 26 |
| Robbery | 9.3 | 13 |
| Aggravated assault | 20 | 31.2 |
| Burglary | 59.9 | 39.6 |
| Larceny-theft | 657 | 483 |
| Motor vehicle theft | 31.9 | 38.9 |
| Arson | 10.6 | 1.9 |
Crime trends
Arlington Heights
Naperville
Frequently asked questions
Is Arlington Heights or Naperville safer?
Which has more violent crime, Arlington Heights or Naperville?
What are the odds of violent crime in Arlington Heights vs Naperville?
No area has zero risk
A high Crime Index score means lower reported crime relative to other US cities — it is not a guarantee of safety. Reported crime is not the same as actual crime. Research on the gap between crime that occurs and crime that gets reported to police — often called the "dark figure" of crime — estimates that roughly 40% of violent crime and about a third of property crime go unreported each year. Every index built on official statistics, including this one, necessarily undercounts real crime. That gap is exactly why homicide — the offense with the smallest dark figure — anchors the calculation instead of a more commonly reported but less reliable category like theft.
Scores on this page reflect FBI-reported data for 2025. See the full methodology →
Protecting yourself in Arlington Heights & Naperville
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