Special Report

The Biggest Dog Breeds in the US

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7. Newfoundland
> Weight: 130-150 pounds (male), 100-120 pounds (female)
> Height: 28 inches (male), 26 inches (female)
> Popularity: 41 out of 197
> Life expectancy: 9-10 years
> Personality: Sweet, Patient, Devoted
> Group category: Working

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6. Spanish Mastiff
> Weight: 140-200 pounds
> Height: Minimum 28-35 inches
> Popularity: Not ranked
> Life expectancy: 10-12 years
> Personality: Affectionate, Intelligent, Kind
> Group category: Foundation Stock Service

Source: tobkatrina / iStock via Getty Images

5. Saint Bernard
> Weight: 140-180 pounds (male), 120-140 pounds (female)
> Height: 28-30 inches (males), 26-28 inches (female)
> Popularity: 52 out of 197
> Life expectancy: 8-10 years
> Personality: Playful, Charming, Inquisitive
> Group category: Working

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4. Great Dane
> Weight: 140-175 pounds (male), 110-140 pounds (female)
> Height: 30-32 inches (male), 28-30 inches (female)
> Popularity: 15 out of 197
> Life expectancy: 7-10 years
> Personality: Friendly, Patient, Dependable
> Group category: Working

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3. Boerboel
> Weight: 150-200 pounds
> Height: 24-27 inches (male), 22-25 inches (female)
> Popularity: 123 out of 197
> Life expectancy: 9-11 years
> Personality: Confident, Intelligent, Calm
> Group category: Working

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