Mercer County, New Jersey Genealogy

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Guide to Mercer County, New Jersey ancestry, genealogy and family history, birth records, marriage records, death records, census records, family history, and military records.

County Facts
County seat: Trenton
Organized: 22 Feb 1838
Parent County(s): Burlington, Hunterdon, Middlesex
Neighboring Counties
Bucks (PA)  • Burlington  • Hunterdon  • Middlesex  • Monmouth  • Somerset
See County Maps
Courthouse
New Jersey, Mercer County Courthouse.png
Location Map
Nj-mercer.png
Adoption
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County Information[edit | edit source]

Description[edit | edit source]

Mercer County is in the west-central region of the state. It was created in 1838. Trenton is the county seat. The county was named for Continental Army General Hugh Mercer. [1]

County Courthouse[edit | edit source]

Mercer County Courthouse
175 South Broad St
Trenton, NJ 08650-0068
Phone: 609-571-4200
Mercer County Website

County Surrogate has probate records.
County Clerk has court and land records from 1838, judgments, tax maps, and corporation records.[2]

Mercer County, New Jersey Record Dates[edit | edit source]

Known Beginning Dates for Major County Records[3]
Birth* Marriage Death* Court Land Probate Census
1901 1901 1901 1838 1838 1838 1830
*Statewide registration for births and deaths started 1 May 1848. General compliance by 1920.

Record Loss[edit | edit source]

There is no known history of courthouse disasters in this county.

Boundary Changes[edit | edit source]

Populated Places[edit | edit source]

For a complete list of populated places, including small neighborhoods and suburbs, visit HomeTown Locator. The following are the most historically and genealogically relevant populated places in this county:[6]

Cities
Boroughs
Unincorporated communities
Census-designated places
Townships


History Timeline[edit | edit source]

  • 1839, more parts from Hunterdon County added.
  • 1844, Hopewell twp. returned to Hunterdon County and then returned in 1845.

Resources[edit | edit source]

Bible Records[edit | edit source]

Biographies[edit | edit source]

Business, Commerce, and Occupations[edit | edit source]

Cemeteries[edit | edit source]

Cemeteries of Mercer County, New Jersey online and in print
Tombstone Transcriptions Online
Tombstone Transcriptions in Print (Often more complete)
List of Cemeteries in the County
See New Jersey Cemeteries for more information.

 

Census Records[edit | edit source]

For tips on accessing census records online, see: New Jersey Census.

Historical populations
Census Pop.
1840 21,502
1850 27,992 30.2%
1860 37,419 33.7%
1870 46,386 24.0%
1880 58,061 25.2%
1890 79,978 37.7%
1900 95,365 19.2%
1910 125,657 31.8%
1920 159,881 27.2%
1930 187,143 17.1%
1940 197,318 5.4%
1950 229,781 16.5%
1960 266,392 15.9%
1970 304,116 14.2%
1980 307,863 1.2%
1990 325,824 5.8%
2000 350,761 7.7%
2010 366,513 4.5%
Source: "Wikipedia.org".

Church Records[edit | edit source]

Church records and the information they provide vary significantly depending on the denomination and the record keeper. They may contain information about members of the congregation, such as age, date of baptism, christening, or birth; marriage information and maiden names; and death date. For general information about denominations, view the New Jersey Church Records wiki page.

List of Churches and Church Parishes

Court Records[edit | edit source]

Directories[edit | edit source]

Emigration and Immigration[edit | edit source]

Ethnic, Political, and Religious Groups[edit | edit source]

Ethnic, Political, or Religious Groups
African American

  • Smith, Anna Amelia Bustill.Reminiscences of Colored people of Princeton, N.J., 1800-1900. -[Philadelphia P. V. Baugh, c 1913] - 15 p. F144.P9 M6
  • The Princeton & Slavery Project

Funeral Homes[edit | edit source]

Genealogies[edit | edit source]

Guardianship[edit | edit source]

Land and Property Records[edit | edit source]

Land and property records can place an ancestor in a specific location, provide economic information, and reveal family relationships. Land records include: deeds, abstracts and indexes, mortgages, leases, grants and land patents.

See New Jersey Land and Property for information about New Jersey Proprietary land records. After land was transferred to private ownership, subsequent transactions were usually recorded at the county courthouse.

Local Histories[edit | edit source]

Your relatives may be included in biographies, in church, school and government history, or in military events and lists. For more information, see New Jersey History and scroll to Local Histories.

Maps and Gazetteers[edit | edit source]

Hunterdon CountySomerset CountyMonmouth CountyBurlington CountyBucks CountyMiddlesex CountyNJ MERCER.PNG
Click a neighboring county
for more resources



Migration[edit | edit source]

Early migration routes to and from Mercer County for settlers included:[7]

Military Records[edit | edit source]

Naturalization and Citizenship[edit | edit source]

Online Naturalization Indexes and Records

Newspapers[edit | edit source]

Obituaries[edit | edit source]

Other Records[edit | edit source]

Periodicals[edit | edit source]

Probate Records[edit | edit source]

From 1797 or the creation of the county, probate records were held by the Court of Common Pleas and may have earlier records. In 1852, most of those records were transferred to the Mercer County Probate Court. For more complete information and for online and other resources, see New Jersey Probate Records.

Online Probate Indexes and Records

School Records[edit | edit source]

Social Security Records[edit | edit source]

Tax Records[edit | edit source]

New Jersey tax records complement land records and can be used in place of censuses before 1820 or to supplement the years between censuses. Because only persons who owned taxable property were listed, many residents were not included in tax lists. There may also be gaps of several years in the tax records of some counties. For more information see the wiki page New Jersey Taxation.

Vital Records[edit | edit source]

Vital Records consist of births, adoptions, marriages, divorces, and deaths recorded on registers, certificates, and documents. United States Vital Records has additional research guidance on researching and using vital records. A copy or an extract of most original records can be purchased from the New Jersey Vital Records State Department of Health or the County Clerk's office of the county where the event occurred. Original marriage records are usually held at the county Bureau of Vital Statistics.

Birth[edit | edit source]

Marriage[edit | edit source]

Death[edit | edit source]

Divorce[edit | edit source]

Research Facilities[edit | edit source]

Archives[edit | edit source]

Family History Centers[edit | edit source]

Family History Center and Affiliate Library Locator map - search for local Family History Centers or Affiliate Libraries

  • Family History Centers provide one-on-one assistance, free access to center-only databases, and to premium genealogical websites.
  • FamilySearch Affiliate Libraries have access to most center-only databases, but may not always have full services normally provided by a family history center.

Local Centers and Affiliate Libraries

Libraries[edit | edit source]

Museums[edit | edit source]

Societies[edit | edit source]

Central Jersey Genealogical Club
PO Box 9903
Hamilton, NJ 08650-1903
Website
Hamilton Township Historical Society
2200 Kuser Road
Trenton, NJ 08650
Telephone: 609-585-1686
[org Website]
Hightstown-East Windsor Historical Society
164 North Main Street
Hightstown, NJ, 08520
Telephone: 609-371-9580
Website
Historical Society of Princeton
158 Nassau St.
Princeton, NJ 08542-7006
Telephone: 609-921-6748
Website

Hopewell Valley Historical Society
PO Box 371
Pennington, NJ 08534
Telephone: 609-737-7751
Websote
Mercer County Cultural and Heritage Commission
640 S. Broad St.
Trenton, NJ 08650
Telephone: 609-989-6701
Website

Websites[edit | edit source]

  • FamilySearch Catalog – The FamilySearch catalog contains descriptions and access information for all genealogical materials (including books, online materials, microfilm, microfiche, and publications) in their collection.  Use Historical Records to search for specific individuals in genealogical records.

Research Guides[edit | edit source]

References[edit | edit source]

  1. Wikipedia contributors, "Mercer County, New Jersey" in Wikipedia: the Free Encyclopedia, https://en.wikipedia.org/wiki/Mercer_County,_New_Jersey accessed 29 August 2018.
  2. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Mercer County, New Jersey page 464, At various libraries (WorldCat); FHL Book 973 D27e 2002.
  3. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Mercer County, New Jersey . Page 464-465 At various libraries (WorldCat); FHL Book 973 D27e 2002; Alice Eichholz, ed. Ancestry’s Red Book: American State, County, and Town Sources, Third ed. (Provo, Utah: Ancestry, 2004), 460.
  4. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), 464. At various libraries (WorldCat); FHL Book 973 D27e 2002.
  5. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002).At various libraries (WorldCat); FHL Book 973 D27e 2002.
  6. Wikipedia contributors, "Mercer County, New Jersey," in Wikipedia: the Free Encyclopedia,https://en.wikipedia.org/wiki/Mercer_County,_New_Jersey#Communities accessed 8 March 2020.
  7. Handybook, 847-61.