Rat TerrierVSJack Russell Terrier
The Rat Terrier and the Jack Russell Terrier are both compact, energetic American and British working terriers bred for vermin control, featuring big personalities packed into small bodies. While they share a high prey drive and relentless energy, the Rat Terrier tends to be somewhat calmer and more adaptable, while the Jack Russell is famously intense and challenging. Here is a full comparison.
Last reviewed: June 2026
Side-by-Side Comparison
| Category | Rat Terrier | Jack Russell Terrier |
|---|---|---|
| Size | 10–25 lbs, 10–18 in | 13–17 lbs, 10–15 in |
| Energy Level | High | ✓Very High to Extreme |
| Trainability | ✓Very Good | Moderate (very stubborn) |
| Shedding | Moderate | Moderate |
| Good With Kids | ✓Good | Fair (best with older kids) |
| Good With Other Dogs | ✓Good | Fair (can be aggressive) |
| Barking | ✓Moderate | High |
| Life Expectancy | ✓12–18 years | 13–16 years |
| Apartment Living | ✓Good | Fair (very high energy) |
| Price Range | ✓$300–$800 | $800–$2,500 |
✓ indicates advantage in this category. Tie = comparable.
Which Breed Is Right for You?
Choose a Rat Terrier if…
Choose a Rat Terrier if you want a highly trainable, versatile terrier who is more family-friendly, longer-lived, and somewhat calmer than the typical Jack Russell.
Choose a Jack Russell Terrier if…
Choose a Jack Russell Terrier if you are an experienced terrier owner who wants maximum drive, athleticism, and personality and can manage extreme energy and stubbornness.
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Compare Pet Insurance QuotesFrequently Asked Questions
Which is more energetic, Rat Terrier or Jack Russell?
Jack Russell Terriers are considerably more intense — they were bred for fox hunting requiring tremendous drive, stamina, and boldness, and they rarely switch off. Rat Terriers are energetic but more variable in intensity and generally settle down more readily indoors. Many Jack Russell owners describe their dog as having a "switch that never turns off," which requires constant active management.
Which terrier is better for families?
Rat Terriers are generally more family-friendly — they tend to be less reactive, more adaptable, and more consistently trainable. Jack Russells can be wonderful family dogs but their high drive and tendency to nip or snap when overstimulated makes them better suited to households with older, dog-savvy children. Both breeds have strong prey drive that requires supervision around small animals.
How long do Rat Terriers live?
Rat Terriers are one of the longest-lived dog breeds, with averages of 12 to 18 years. They are exceptionally healthy with minimal breed-specific health conditions, likely due to their diverse genetic background. Jack Russell Terriers are also long-lived at 13 to 16 years. Both breeds significantly outlive most larger breeds, and owners should be prepared for a commitment of well over a decade.
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