Boston Terrier Dog Breed Information

Also known as: Boston Bull, American Gentleman

A small, brachycephalic companion in a tuxedo-marked coat. Friendly, playful and apartment-friendly, with the heat sensitivity and breathing concerns common to flat-faced breeds. Despite the name, Dogs NZ classifies the Boston in Non Sporting, not Terriers.

Black and white Boston Terrier portrait, photo on Unsplash

A highly affectionate, highly trainable, great with young children dog. On the practical side: low grooming demands and minimal drool.

About the Boston Terrier.

The Boston Terrier is one of NZ’s most apartment-friendly small breeds and has been climbing the council registration rankings as more Kiwis move into shared-wall housing in central Auckland, Wellington and Christchurch. The personality is warm and quietly intelligent, the size suits a one-bedroom flat, and the bark is occasional rather than constant. The trade-off is brachycephalic conformation, less severe than the Pug or French Bulldog but still real, and any honest NZ buyer’s guide has to spell out the heat limits before quoting the puppy price.

Adults stand 23 to 38 cm at the shoulder and weigh 4.5 to 11.5 kg, with NZKC standards splitting the breed into three weight divisions. The smooth single coat is most often black and white in the tuxedo pattern that earned the breed its “American Gentleman” nickname, with brindle-and-white and seal-and-white also recognised. Lifespan sits at 11 to 13 years for a well-bred, lean dog with managed heat exposure.

Personality and behaviour

Boston Terriers are friendly with almost everyone: family, strangers, kids, other dogs. They are biddable, food motivated, and respond exceptionally well to short training sessions, more so than the French Bulldog or Pug. They retain a playful streak through life, with adult Bostons happy to chase a ball, play tug or work a snuffle mat in 10 to 15 minute bursts before settling onto the couch.

The breed is sociable rather than protective. A Boston will alert at the door but the default reaction to a stranger is enthusiasm, not suspicion. Most NZ Bostons are easy with other dogs and children, with patience that registered breeders typically point to as one of the breed’s defining traits. The compensating trait is intensity of attachment: Bostons bond hard to their household and tend to struggle with full workdays alone.

The trait that surprises new owners is the cleverness. A Boston will work out which cabinet contains the treats, which window catches the sun in the afternoon, and which family member hand-feeds when no one is watching. The breed is more trainable than the small flat-faced average and rewards owners who put short daily training sessions into the routine.

Energy is moderate, not low. A Boston will play hard in 10 to 15 minute bursts, then nap. The bark is occasional rather than constant. Snoring, snorting and reverse-sneezing at rest are normal for the breed; persistent loud breathing on a walk, blue gums or collapse all need same-day vet attention.

Care and exercise

Plan on around 45 minutes of structured exercise a day, split across two walks plus indoor play. The Boston is more aerobically capable than the Pug or Frenchie but still cannot pant efficiently in heat, and a single overheated walk on a 25-degree Auckland afternoon can put a Boston in the emergency vet at NZ$1,500 to NZ$4,000 for stabilisation. Walk before 9 am and after 6 pm December through February in the upper North Island.

The smooth coat sheds lightly year-round. A weekly brush with a rubber curry mitt keeps the loose hair contained. Wipe the facial wrinkles around the muzzle with a damp cloth twice a week to prevent fold dermatitis, more in summer when the folds get sweaty. The bulging eye sits close to the world and gets dust and grit; check eyes daily and rinse with a saline wipe if needed.

Diet matters more than the small size suggests. A 1 kg overweight Boston is the equivalent of 6 to 12 kg on a 60 kg human, and obesity worsens BOAS, joint disease and skin allergies. Measure portions, weigh the dog monthly, and treat training treats as part of the daily ration. Most adult Bostons eat 100 to 180 g of quality dry food a day depending on size, split into two meals.

Use a Y-front harness rather than a collar. The short neck makes tracheal pressure a real concern, and a Boston pulling on a flat collar can collapse on a hot day. Most NZ Boston households also keep a portable water bottle in the dog’s walk bag for warm-month walks.

Climate fit across New Zealand

The Boston handles NZ climate better than the Pug or Frenchie but is still a brachycephalic dog and cannot pant efficiently. Regional differences matter.

  • Auckland and Northland. The hardest fit. Humid summers above 25 degrees regularly push Bostons into mild heat stress, with severe cases ending in emergency vet visits. Walk early or late only, ensure aircon or a tile floor for indoor cooling, and never leave a Boston in a parked car (interior temperature can hit 50 degrees within 10 minutes on a summer day). Beach walks at low tide in cool water are a strong NZ summer option for the breed.
  • Wellington. A good fit. Cool summers, breezy days, and shorter periods of high heat. Wind and rain are no problem; the smooth coat dries fast. The hilly suburbs are workable but build distance gradually for puppies under 12 months.
  • Christchurch and Canterbury. A strong year-round fit. Cold winters are easy on the breed (a small fleece coat helps in frost). Hot dry nor’westers in summer still require the early-walks rule. Dust and grass seed need a check after walks in long grass.
  • Central Otago and Southland. Suits the breed. Cold weather is the easy half of the year for any flat-faced dog. Frost and snow are fine for short walks; dry the dog off afterwards and keep walks under 20 minutes when temperatures fall below freezing. Indoor warmth matters more than for a thicker-coated breed.

Where to find a Boston Terrier in New Zealand

Three reasonable paths.

  1. Registered NZKC breeders. The Dogs NZ breeders directory lists registered Boston Terrier breeders by region. Expect a 4 to 12 month waitlist and NZ$2,500 to NZ$4,500 for a registered puppy. Look for breeders who BOAS-grade their parents, score patellas, BAER-test puppies for hereditary deafness, DNA-test for juvenile hereditary cataract, and breed for a longer muzzle and more open nostril than the show extreme. Reputable breeders typically interview buyers carefully and place into long-term homes.
  2. Boston Terrier rescue. Boston Terrier Club of NZ rescue and small breed rescue networks occasionally take in surrendered adult Bostons. Adoption fees usually run NZ$400 to NZ$900.
  3. SPCA NZ. Boston and Boston-cross dogs appear in SPCA centres occasionally, often with limited backstory. Adoption includes desexing, vaccination, microchipping and parasite treatment, typically NZ$300 to NZ$700. The SPCA recommends meeting any flat-faced dog several times before committing because individual airway grades vary widely.

Avoid online listings advertising “rare” colours (blue, lilac, merle), breeders selling without BAER hearing tests or BOAS grading, and any source under 8 weeks old. The breed’s broad popularity has attracted volume breeders cutting corners on exactly the screens registered breeders perform.

Council registration is required by 12 weeks under the Dog Control Act. The DIA national dog database holds the record; your local council issues the tag and the annual fee.

Lifespan
11–13 yrs
Typical for the breed
Weight
4.5–11.5 kg
Adult, both sexes
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Daily exercise
45 min
Walks, play, water
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NZ rank
#28
DIA registrations 2025

The Boston Terrier, by the numbers.

Each trait scored 1 to 5 on the AKC scale. The verdict synthesises the data; the panels below show the strengths, group averages, and the full trait table.

Top strengths

01 Affectionate with Family 5/5
02 Good with Young Children 5/5
03 Openness to Strangers 5/5
04 Playfulness 5/5

Family Life

avg 4.7

Affectionate with Family

12345
Independent Lovey-dovey

Good with Young Children

12345
Not recommended Great with kids

Good with Other Dogs

12345
Not recommended Sociable

Physical

avg 1.7

Shedding

12345
No shedding Hair everywhere

Grooming Frequency

12345
Monthly Daily

Drooling

12345
Less A lot

Social

avg 4.5

Openness to Strangers

12345
Reserved Best friend with everyone

Playfulness

12345
Only when you want to play Non-stop

Watchdog / Protective

12345
What's mine is yours Vigilant

Adaptability

12345
Lives for routine Highly adaptable

Personality

avg 3.3

Trainability

12345
Self-willed Eager to please

Energy Level

12345
Couch potato High energy

Barking Level

12345
Only to alert Very vocal

Mental Stimulation Needs

12345
Happy to lounge Needs a job

Living with a Boston Terrier.

A 24-hour breakdown of how this breed's day typically goes, scaled to its energy, mental-stimulation, and grooming needs.

A typical 24-hour day

Living with a Boston Terrier day to day.

6h 42m

Hands-on time per day

💤

Sleep

12h

Adult dogs sleep 12-14 hours per day, including a daytime nap.

🏃

Exercise

45m

A daily walk plus a short game.

🧠

Mental stim

24m

Some training or puzzle work each day to keep them engaged.

🍽

Feeding

25m

Two measured meals. Don't free-feed; food motivation runs high.

Grooming

8m

Quick brush per day. Almost no professional grooming needed.

🐕

With you

5h

Velcro pet. Will follow you room to room when you're home.

🏠

Alone

5h 18m

Typical work-from-home or part-day-out alone time.

Indicative. Actual time varies by household, age, and the individual animal. The "with you" slot scales with the breed's affection score; mental-stim time with its mental-stimulation rating.

What a Boston Terrier costs to own.

An indicative NZ lifetime cost: purchase, setup, then food, vet, insurance, grooming and other annual outgoings. Adjust the inputs to see how your choices change the total.

A Boston Terrier costs about

$230per month

Per week

$53

Per day

$8

Lifetime (12 yrs)

$37,118

Adjust the inputs:

Where the monthly cost goes

Food

$62 / mo

$740/yr · breed-appropriate dry & wet food

Shop food

Insurance

$54 / mo

$644/yr · lifetime cover protects against breed-specific claims

Get a Cove quote

Vet (avg)

$69 / mo

$830/yr · routine checks plus breed-specific risk

Find a vet

Grooming

$8 / mo

$100/yr · brushes, shampoo, professional clips

Shop grooming

Other

$38 / mo

$450/yr · toys, treats, dental, boarding

Shop essentials

Indicative NZ averages calculated from breed weight, grooming need and screened-condition count. One-off costs (purchase $3,500 + setup $450) are factored into the lifetime total but not the monthly figure.

How does the Boston Terrier compare?

This breed

Boston Terrier

$37,118

12-year lifetime cost

  • Purchase + setup$3,950
  • Food (lifetime)$8,880
  • Vet (lifetime)$9,960
  • Insurance (lifetime)$7,728
  • Grooming (lifetime)$1,200
  • Other (lifetime)$5,400

Reference

Average NZ medium dog

$38,920

12-year lifetime cost

  • Purchase + setup$2,200
  • Food (lifetime)$13,200
  • Vet (lifetime)$6,000
  • Insurance (lifetime)$11,400
  • Grooming (lifetime)$2,400
  • Other (lifetime)$3,720

A Boston Terrier costs about $1,802 less over a lifetime than the average nz medium dog, mostly lowerfood and highervet.

What to ask the breeder.

Reputable NZKC breeders test for these conditions and share results without being prompted. If a breeder won't share screening results, that is itself an answer.

Common

5 conditions

Brachycephalic obstructive airway syndrome (BOAS)

Less severe on average than Pug or Frenchie but still significant. Severe cases need surgical correction at NZ$3,500 to NZ$8,000.

Heat stress and heatstroke

A flat-faced dog cannot pant efficiently. Real risk in NZ summers, especially Auckland and Northland.

Patellar luxation

Slipping kneecaps. Reputable NZKC breeders score parents.

Eye conditions (cherry eye, corneal ulcer, cataract, juvenile cataract)

The bulging eye sits close to the world. Juvenile hereditary cataract has a DNA test reputable breeders use.

Dystocia (difficult birth)

Most Boston Terrier litters are delivered by C-section because of the broad head and narrow hips.

Occasional

3 conditions

Deafness (congenital)

Linked to the white coat pattern. Reputable breeders BAER-test puppies before placement.

Hemivertebrae and spinal disease

The screw tail comes from a spinal malformation that can extend further along the spine.

Allergies and atopic dermatitis

An occasional condition in the Boston Terrier. Worth asking about and DNA testing where available.

The Boston Terrier in NZ.

  • NZ popularity: ranked #28
  • Popularity: A consistent presence in NZKC small-breed registrations and increasingly common in Auckland, Wellington and Christchurch apartments and townhouses. Popularity has risen with the wider trend toward small companion breeds in urban NZ.
  • Typical price: NZ$2500–4500 from registered breeders
  • Rescue availability: occasional
  • NZ climate fit: Real heat limits in upper North Island summers. Brachycephalic dogs cannot pant efficiently. Avoid midday walks December through February in Auckland, Hamilton, Tauranga and Northland. The Boston handles cool wet weather well and suits Wellington and Christchurch year-round.
  • Living space: Suits apartments and townhouses. Stairs are fine for adult Bostons but limit jumping off high furniture because of spinal load and the breed's predisposition to hemivertebrae.

Who the Boston Terrier is for.

Suits

  • Apartment dwellers in Auckland, Wellington and Christchurch
  • Families with children of any age
  • First-time owners willing to manage heat carefully
  • Owners home most of the day

Less suited to

  • Long workdays with the dog left alone for nine hours
  • Hot, humid upper-North-Island homes without aircon
  • Active outdoor families wanting a hiking or running partner
  • Households expecting natural mating and whelping (most Boston litters are by C-section)

Common questions.

Is a Boston Terrier really a Terrier?
By name only. Despite the breed name, Dogs NZ classifies the Boston Terrier in the Non Sporting group rather than the Terriers. The original 1870s cross was a Bulldog and a now-extinct White English Terrier, but the modern breed has been a companion dog for more than a century and shows none of the working drive, prey instinct or independence of true terriers like the Jack Russell or Fox Terrier.
Can a Boston Terrier live happily in NZ?
Yes, with planning. The breed is one of the more heat-tolerant flat-faced dogs but still cannot pant efficiently and should not be walked in the middle of a hot Auckland or Northland summer day. Aircon, tile floors and early-or-late walks are the standard NZ Boston household setup. The breed handles Wellington and Christchurch climates more easily.
How much exercise does a Boston Terrier need?
Around 45 minutes a day, split between two walks plus indoor play. The Boston is one of the more energetic flat-faced breeds and enjoys fetch, food puzzles and short training sessions. Avoid sustained running or hot-day exercise; the airway limits aerobic capacity even in the fittest dogs.
Are Boston Terriers good apartment dogs?
Yes. The 4.5 to 11.5 kg size, the moderate exercise need, the low shedding and the friendly temperament combine well for apartment living in Auckland, Wellington and Christchurch. The bark is occasional rather than constant, which matters in shared-wall housing. Plan for daycare or a midday walker if both owners work full days outside the home.

If the Boston Terrier appeals, also consider.

Breeds with a similar profile that might suit your household.

Information only. Breed traits and health notes on this page are aggregated from public registry and breed-authority sources. Individual animals vary; this page is general information, not veterinary, behavioural, or insurance advice. Always consult a registered NZ vet or breeder for guidance specific to your situation.