Pet Insurance Cost by State: The Real 51-Jurisdiction Index
Pet insurance is priced geographically. The same dog, the same insurer and the same policy can quote very differently depending on where the dog lives, because premiums are built from expected claim costs — and claim costs are veterinary bills, which vary enormously by market.
This page publishes the full 51-jurisdiction index, computed from NAPHIA’s published data, along with the caveat that makes it easy to misuse.
How the index is built
NAPHIA’s 2026 State of the Industry Report publishes, for each state, two percentages:
- That state’s share of all insured pets in the US.
- That state’s share of total US premium (gross written premium).
Divide the second by the first and you get a premium index: the average premium contributed by an insured pet in that state, relative to the national average. An index of 1.18 means 18% above; 0.85 means 15% below. It is arithmetic on two published numbers, which is what makes it defensible.
The caveat that matters
This index is not a rate card. It measures average premium per insured pet, which blends two different things:
- Local price levels — how expensive veterinary care is where you live.
- Plan mix — what people in that state actually buy. A state where more owners choose cheap accident-only cover will show a lower index even if its vet fees match a neighbouring state’s.
So read it as a market-level signal about where premiums run high and low. Do not read it as “my dog will cost 18% more in Massachusetts” — your dog’s age, breed risk profile and plan configuration all move the number more than the state does.
States with the highest premium index
| State | Share of insured pets | Share of premium | Index |
|---|---|---|---|
| Massachusetts | 3.4% | 4.0% | 1.18 |
| Connecticut | 1.7% | 2.0% | 1.18 |
| California | 18.1% | 19.9% | 1.10 |
| Maryland | 2.1% | 2.3% | 1.10 |
| New York | 7.4% | 8.1% | 1.09 |
| New Jersey | 4.7% | 5.1% | 1.09 |
| Colorado | 3.0% | 3.2% | 1.07 |
| Illinois | 3.3% | 3.5% | 1.06 |
| Florida | 6.2% | 6.5% | 1.05 |
| Virginia | 3.0% | 3.1% | 1.03 |
Massachusetts and Connecticut leading is the interesting result. Both have far smaller insured-pet populations than California, yet both contribute disproportionately more premium per pet — consistent with high veterinary fee levels in the Boston and Hartford–Stamford corridors. California’s size means its 1.10 index moves the national average more than any other single state does.
States with the lowest premium index
| State | Share of insured pets | Share of premium | Index |
|---|---|---|---|
| Oklahoma | 0.5% | 0.3% | 0.60 |
| Alabama | 0.6% | 0.4% | 0.67 |
| Kentucky | 0.6% | 0.4% | 0.67 |
| Nebraska | 0.3% | 0.2% | 0.67 |
| Arkansas | 0.3% | 0.2% | 0.67 |
| Vermont | 0.3% | 0.2% | 0.67 |
| Montana | 0.3% | 0.2% | 0.67 |
| Missouri | 1.1% | 0.8% | 0.73 |
| Indiana | 1.2% | 0.9% | 0.75 |
| Kansas | 0.4% | 0.3% | 0.75 |
A caution on this table: NAPHIA rounds to one decimal place. For states with a pet share under about 1%, that rounding swamps the signal — Nebraska at 0.3% pets and 0.2% premium is one rounding step away from a materially different index. Treat the sub-1% rows as indicative, not precise. That is also why six states tie at 0.67.
Among the states large enough to trust, Ohio and Michigan are lowest at 0.85, with South Carolina and Tennessee alongside them and Georgia at 0.87.
The complete 51-jurisdiction table, with confidence markers on the small states, is on the insurance cost hub.
Why the gap exists
1. Veterinary fee levels. The dominant factor. Premiums are built from expected claim costs, and claim costs are vet bills. A procedure that bills one amount in a rural market bills substantially more in a dense metro, and insurers map that ZIP code by ZIP code rather than state by state.
2. Local disease pressure. Regional risk changes what gets claimed. NAPHIA’s 2025 claims data puts gastrointestinal issues, ear infections and skin conditions at the top of the national list, but the mix shifts with climate — heartworm and tick-borne disease concentrate differently by region, and year-round parasite pressure in the South adds preventive and treatment claims that northern states see less of.
3. State regulation. Pet insurance is property-and-casualty insurance, regulated state by state. Some states mandate specific disclosures, restrict waiting periods, or tighten the definition of a pre-existing condition. Compliance costs and mandated benefits both flow into filed rates.
4. Market competition. Where more carriers actively write policies, prices compress. Not every insurer is licensed in every state, which limits comparison shopping in the states they skip.
What to actually do with this
- Quote with your real ZIP code. State-level differences are dwarfed by intra-state ones. Metro versus rural swings are routine, and the address on the policy must be where the dog lives.
- Moving states? Expect a rate change at renewal. Premiums re-rate to the new ZIP code. Waiting periods generally do not restart as long as cover stays continuous with the same carrier — but confirm that in writing before you move.
- Do not pick a breed for the index. A 0.85 state index does not offset a breed with four documented high-severity conditions. The breed risk ranking is in the most expensive breeds to insure, and it matters more than geography.
- Compare at least three carriers where you live. Not every carrier files rates in every state, and the cheapest national brand is frequently not the cheapest at your address.
A note on the pages we removed
This guide used to link to individual breed-by-state cost pages — 432 of them, each showing a monthly dollar range for a specific breed in a specific state. Those pages were generated by multiplying a breed estimate by a state estimate. Neither input had a documented source, and no published dataset supports the output.
We deleted all 432 pages rather than keep them. Our methodology page sets out what we publish now and what we deliberately do not.
The broader cost picture, with the national averages and the real claims data behind them, is in how much does pet insurance cost.
FAQ
Which state has the most expensive pet insurance?
On NAPHIA's published data, Massachusetts and Connecticut top the list at an index of 1.18 — meaning insured pets there contribute 18% more premium than the national average. California and Maryland follow at 1.10, then New York and New Jersey at 1.09. The pattern tracks veterinary fee levels in dense, high-cost metros.
Which states have the cheapest pet insurance?
Oklahoma is lowest at an index of 0.60, followed by a six-way tie at 0.67 — Alabama, Kentucky, Nebraska, Arkansas, Vermont and Montana. Among states large enough for the figures to be reliable, Ohio and Michigan are lowest at 0.85, with South Carolina and Tennessee alongside them.
Does pet insurance cost differ within a state?
Yes, and more than between states. Insurers file rates at ZIP code level, so a dense metro ZIP can price well above a rural one in the same state. The state index is a market-level signal; your ZIP code is the actual input.
Can I buy pet insurance from another state to get a lower rate?
No. Rates are filed state by state and rated to your home ZIP code. The address on the policy has to be where the pet actually lives, and misstating it is grounds for claim denial — a well-known and avoidable trap.
Is the state index the price I would pay?
No, and it is important to be clear about this. The index is average premium per insured pet relative to the national average. It blends local price levels with what people in that state actually buy, so a state where more owners choose cheap accident-only plans will show a lower index even at identical veterinary fees.