Mercer County Genealogy Lookup

Mercer County sits in central New Jersey with Trenton as its county seat and state capital. This location gives researchers a unique advantage. Both county and state genealogy offices are in the same city. The County Clerk, Surrogate, and the New Jersey State Archives are all within a short drive of each other. If you are searching for birth records, death records, marriage records, or property files tied to Mercer County, this guide covers where to look and how to get the documents you need for your family history research.

Mercer County Clerk Genealogy Records

The Mercer County Clerk's Office is at 209 South Broad Street in Trenton, NJ 08608. Clerk Paula Sollami Covello leads this office. The phone for the Trenton office is 609-989-6464. There is also a branch at the Mercer County Connection in Hamilton, reachable at 609-989-6473 or 609-890-9800.

The Clerk handles property records that are essential for genealogy work in Mercer County. Land deeds, mortgages, and liens can show where your ancestors lived and what they owned. The office has two online search sites for property records. You need to register to use them. E-recording is also available through NJRecording.com. The Mercer County Property Information Portal lets you look up parcels and the Property Alert Service can notify you of changes. These tools are helpful when you want to trace land ownership through your family tree in Mercer County.

The Mercer County Clerk also offers notary services and education courses. While these are not directly tied to genealogy, they show the range of public services based at this office in Trenton.

Visit the Clerk's website for details on how to search property records and what documents are on file for Mercer County.

Since the State Archives is also in Trenton, you can visit both the Clerk and the Archives on the same trip for Mercer County research.

Note: The Mercer County Clerk does not issue vital records like birth or death certificates, so contact the state offices for those documents.

Probate Records in Mercer County

The Mercer County Surrogate's Office is in the Mercer County Civil Courts Building at 175 South Broad Street, 4th Floor, Room 420, Trenton, NJ 08650. The phone is (609) 989-6331. Surrogate Diane Gerofsky runs this office.

The Surrogate handles probate of wills, administration of estates, guardianship, adoption filings, trusteeships, and conservatorships. For genealogy, probate records are a key source. A will filed in Mercer County names the deceased, their heirs, and often their property. Estate administration records show what happened when someone died without a will. These files can list family members and their relationships to one another. The Surrogate also provides educational materials that explain the duties of an executor or administrator, which can help you understand the records you find.

Older probate records for Mercer County may also be on microfilm at the New Jersey State Archives. The Archives holds county surrogate records up to 1900 for most counties. FamilySearch has New Jersey Probate Records from 1678 to 1980 with images.

Probate files from Mercer County can reveal family ties that other records miss, so they are worth the effort to track down.

Mercer County Vital Records Search

Trenton is both the Mercer County seat and the state capital. This means the New Jersey State Archives and the Office of Vital Statistics are right in town. The State Archives at 225 West State Street holds birth records from 1848 to 1923, marriage records from 1848 to 1948, and death records from 1848 to 1963 on microfilm. You can search these for free on site.

The Office of Vital Statistics at 140 East Front Street has more recent records. They maintain births from 1925, marriages from 1951, and deaths from 1951 to the present. Walk-in service is available Monday through Friday, 8:30 AM to 4:00 PM. You can also order by mail or through VitalChek online. The fee is $25 for the first copy and $2 for each extra copy ordered at the same time. Under N.J.S.A. 26:8-24, the State Registrar maintains a full index of all vital records in New Jersey.

For genealogy searches where you lack exact details, the state charges $1 per extra year searched. Processing by mail takes about 10 to 12 weeks. Bring valid photo ID if you plan to visit in person.

Note: New Jersey vital records are not public records and cannot be searched online freely, so plan to visit in person or submit a mail request.

Online Genealogy Tools for Mercer County

Several online databases can help you find Mercer County genealogy records without leaving home. Reclaim The Records has free digitized New Jersey vital records indices on the Internet Archive. These cover births, marriages, and deaths from the early 1900s with about 445,000 records across the state.

FamilySearch offers free access to a wide range of New Jersey records. Their collections include births and christenings from 1660 to 1980, marriages from 1670 to 1985, deaths and burials from 1798 to 1971, state census records for 1855, 1865, 1895, and 1915, and naturalization records from 1796 to 1991. All of these may include Mercer County entries. Ancestry.com has census records from 1790 to 1950, wills and probate records from 1656 to 1999, and marriage records from 1670 to 1965. Many libraries offer free in-house access to Ancestry Library Edition.

The NJ State Library in Trenton holds about 18,000 genealogy items you can use on site. Their collection includes 6,000 family histories and 1,000 city directories that can help track Mercer County families between census years. They also provide free access to Ancestry.com and HeritageQuest at their reading room on State Street.

Mercer County Family History Approach

Mercer County was formed in 1838 from parts of Burlington, Hunterdon, and Middlesex counties. If your family lived in this area before 1838, you may need to check records in those older counties. This is a common challenge in New Jersey genealogy. County lines shifted over time, so a town that is now in Mercer County may have its older records filed under a different county.

The New Jersey Historical Society in Newark can help with broader research. They hold about 1,200 family files, 75,000 biographical card index entries, and church records from across the state. The Genealogical Society of New Jersey publishes the quarterly "Genealogical Magazine of New Jersey" and has collections at the Rutgers Alexander Library in New Brunswick. The NJ GenWeb Project has a Mercer County page with free volunteer-posted records and query boards.

The State Archives also holds Colonial Marriage Bonds and Licenses from 1666 to 1799 with a searchable online database. Pre-1848 marriages were recorded by county clerks. If your Mercer County ancestors married before civil registration began, check these colonial records.

Tips for Searching Mercer County Records

Trenton has been a center of government for centuries. Many records are close at hand. Here are some steps to plan your Mercer County genealogy search:

• Check the Clerk's property records portal for land deeds
• Visit the Surrogate for wills and estate files
• Search the State Archives for vital records on microfilm
• Use the NJ State Library for family histories and directories
• Browse FamilySearch and Ancestry for census and vital records

Since so many offices are in Trenton, a single day trip can cover a lot of ground for Mercer County research. The State Archives, the Office of Vital Statistics, the NJ State Library, and the County Clerk are all within a few blocks of each other. Plan ahead and bring your list of names, dates, and places.

Free digitized indices from Reclaim The Records can help you find the exact record you need before you request a certified copy.

Note: Processing times for vital record requests by mail can take 10 to 12 weeks, so start early if you need certified copies from Mercer County.

Cities in Mercer County

Mercer County has 13 municipalities. Trenton is the county seat and state capital. All county-level genealogy records are kept at offices in Trenton. Local registrars in each municipality may also hold some vital records.

Other municipalities in Mercer County include Princeton, Lawrence, Ewing, Hopewell, East Windsor, West Windsor, Hightstown, Pennington, and Robbinsville. All county-level genealogy records for these towns are at offices in Trenton.

Nearby Counties

These counties border Mercer County. Since Mercer was formed from parts of Burlington, Hunterdon, and Middlesex, older records for this area may be in a neighboring county.