Fountain Valley, CA vs Petaluma, CA: Crime Rate Comparison (2025)
A side-by-side look at reported crime in Fountain Valley and Petaluma, on the FBI-based Crime Index (0–100, higher = safer) for 2025.
Fountain Valley and Petaluma are neck and neck
Both score 79/100 on the Crime Index for 2025. The difference is in the mix: Fountain Valley wins 4 of 8 offense categories, Petaluma wins 3.
Fountain Valley, CA
Crime Index
- Population
- 55,805
- Violent / 100k
- 176
- Property / 100k
- 1,588
- In California
- #46 of 175
Petaluma, CA
Crime Index
- Population
- 59,305
- Violent / 100k
- 228
- Property / 100k
- 1,202
- In California
- #47 of 175
Crime rates head-to-head
| Metric | Fountain Valley | Petaluma | US average |
|---|---|---|---|
| Crime Index (higher = safer) | 79B | 79B | 73C |
| Violent crime /100k | 176 | 228 | 315 |
| Property crime /100k | 1,588 | 1,202 | 1,487 |
| Homicide /100k | 0 | 0 | 4.1 |
| Total reported /100k | 1,763 | 1,430 | 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 | Fountain Valley | Petaluma |
|---|---|---|
| Homicide | 0 | 0 |
| Rape | 23.3 | 57.3 |
| Robbery | 55.6 | 40.5 |
| Aggravated assault | 96.8 | 130 |
| Burglary | 226 | 111 |
| Larceny-theft | 1,227 | 948 |
| Motor vehicle theft | 125 | 128 |
| Arson | 9 | 15.2 |
Crime trends
Fountain Valley
Petaluma
Frequently asked questions
Is Fountain Valley or Petaluma safer?
Which has more violent crime, Fountain Valley or Petaluma?
What are the odds of violent crime in Fountain Valley vs Petaluma?
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 Fountain Valley & Petaluma
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