According to the American Kennel Club, the three most popular small dog breeds in the United States are:
Chihuahua: The Chihuahua is a small, energetic breed that is known for its loyalty and affectionate nature. They are also very intelligent and can be trained to do a variety of tricks. Chihuahuas are popular due to their small size, which makes them well-suited to apartment living. They are also low-maintenance in terms of grooming and exercise needs.
Pomeranian: Pomeranians are small, fluffy dogs that are known for their outgoing and playful personalities. They are also very intelligent and can be trained to do a variety of tricks. Pomeranians are popular due to their small size and cute, fluffy appearance.
Toy Poodle: Toy Poodles are small, intelligent dogs that are known for their elegant appearance and playful personality. They are highly trainable and excel at obedience and agility training. Toy Poodles are popular due to their small size and low-shedding coat, which makes them suitable for people with allergies.