How to Find a Cause of Death in New Jersey (2026)

New Jersey records a cause of death in two places: the medical certification on the death certificate and, for investigated deaths, the medical examiner's autopsy report. The cause of death is not public. Only family members eligible for a certified copy, or next of kin requesting the autopsy report, can obtain it.

How Do You Find Someone's Cause of Death in New Jersey?

You find a cause of death in New Jersey by obtaining a certified copy of the death certificate, which carries the cause in its medical certification section. If the death was investigated, the medical examiner's autopsy report is the most detailed source.

Because New Jersey is a closed-record state, you generally must be an eligible family member or legal representative to get either document. The fastest practical routes for the public are an obituary or newspaper notice, but those rarely state a precise medical cause.

If you are not eligible to order the certified copy yourself, your options are to work through a qualifying relative or wait until the record becomes a public genealogical record after 40 years.

Is the Cause of Death Public in New Jersey?

No. The cause of death is not public in New Jersey because death certificates themselves are closed records. State law protects and restricts the release of vital records, and they cannot be searched online by the general public.

The distinction matters because New Jersey issues two kinds of copies. A certified copy contains the full record, including the cause of death, and is limited to eligible requesters. A certification is an informational copy that anyone may request, but it specifically does not contain the Cause of Death medical terminology or the Social Security Number.

So even an open-to-all certification will not reveal how the person died. Only the relationship-restricted certified copy or the medical examiner's report will. This mirrors the parent rule explained on the New Jersey Death Records page, and the broader question is covered in Are Cause of Death Records Public?.

Where the Cause of Death Is Recorded

The cause of death is recorded in the medical certification portion of the death certificate. A physician, medical examiner, or other certifier completes this section with the immediate cause, any underlying conditions, and the manner of death.

For deaths that are sudden, violent, suspicious, or otherwise unexplained, the cause is established through a separate document: the medical examiner's autopsy report. New Jersey medical examiner autopsies are performed to establish the cause of death, to support a determination of the manner of death, and to collect evidence and medical documentation.

The autopsy report is far more detailed than the certificate. It can include the report of investigation, the final cause and manner of death, toxicology results, and other findings. The certificate gives a summary; the autopsy report gives the underlying analysis.

How to Request Records That Show the Cause of Death

Start with the document that fits your situation. To get the cause from the death certificate, order a certified copy from the New Jersey Department of Health, Office of Vital Statistics and Registry, or from the local registrar in the municipality where the death occurred.

You must show a qualifying relationship to the deceased. The certified copy is issued only to the parent, legal guardian, or legal representative; the spouse or civil union partner; or a child, grandchild, or sibling of legal age. A plain certification will not list the cause, so it is not useful here.

To get the autopsy report for an investigated death, contact the Office of the Chief State Medical Examiner or the regional office for the county where the person was pronounced dead. Autopsy reports are released to next of kin, and your signature typically must be notarized if you want the report sent to a third party such as an attorney or insurer.

Finding the Cause of Death for Older or Historical Deaths

For older deaths, access opens up over time. New Jersey death records become public genealogical records once the death occurred more than 40 years ago, and records over 100 years old are transferred to the New Jersey State Archives.

Once a record is a public genealogical record, the cause of death on the original certificate becomes accessible to researchers and family historians without proving a close relationship. This is the main path for finding how an ancestor died.

For the fact of death alone, the Social Security Death Index is a useful index, but it confirms only that a person died and basic dates. It does not record a medical cause, so you will still need the certificate or archives record for that detail.

Disclaimer: This page is general information, not legal advice. Access rules, fees, and processing times change. Verify the current requirements with the New Jersey Department of Health, Office of Vital Statistics and Registry, or the Office of the Chief State Medical Examiner before you rely on them.

Sources

This page draws on the New Jersey Department of Health Office of Vital Statistics and Registry and the Office of the Chief State Medical Examiner.

Up to New Jersey Death Records and the Death Records by State hub.