Find Wilmington Genealogy Records
Wilmington is Delaware's largest city and one of the richest places in the state for genealogy research, with records held at the Delaware Historical Society, Hagley Museum and Library, Wilmington Public Library, and several specialized archives. If your ancestors lived in Wilmington or anywhere in New Castle County, this page will point you to the right offices, databases, and collections to trace births, deaths, marriages, and family histories going back to the 1800s and earlier.
Wilmington Overview
Wilmington Genealogy Vital Records
The most direct starting point for Wilmington genealogy is the FamilySearch collection titled "Delaware Wilmington Vital Records 1847-1954." This set covers Justice of the Peace vital records and indexes and includes births from 1881 to 1919, marriages from 1881 to 1954, and deaths from 1881 to 1954. Some entries may overlap with New Castle County registers, so check both if you don't find what you need right away.
Birth records in this collection contain the child's name, gender, birth date and place, registration date, race, and the parents' names, addresses, birthplaces, and father's occupation. That level of detail makes birth records one of the most useful documents for tracing a family line back a generation or two.
Marriage records are equally rich. Each entry typically shows the full names of both the bride and groom, the marriage date and place, their residences, ages, the groom's occupation, birthplaces, parents' names, the number of the marriage for each party, and who officiated the ceremony. If you are trying to confirm a family connection or establish a maiden name, a marriage record from this period can answer several questions at once.
Death records round out the picture. They usually contain the name of the deceased, death date and place, age or birth date, marital status, cause of death, occupation, birthplace, parents' names, surviving spouse, race, last known address, and the name of the person who reported the death. That combination of details often leads directly to the next generation of research.
For current or recent vital records, the Wilmington Vital Records Office is located at 2055 Limestone Road, Wilmington, DE 19808, phone (302) 995-8588. Certified copies of birth, death, and marriage records cost $25 each. Delaware state law governing vital records access is found at Delaware Code Title 16, Chapter 31, Subchapter I, including Section 3110 on access and Section 3132 on fees. Subchapter II covers registration procedures in more detail.
Delaware Historical Society Wilmington Genealogy Collections
The Delaware Historical Society holds the largest collection of Delaware genealogies in the state. Their research library is located at 504 N Market Street, Wilmington, Delaware 19801, phone (302) 656-0637. If you have Wilmington ancestors, this is one of the first places to go. The holdings include roughly 500,000 surname file cards, a number that reflects decades of systematic indexing across Delaware families.
Beyond the surname cards, the Society holds family genealogies and folders, church and cemetery records, and Delaware newspapers going back to the 1790s. They also keep DAR bible records, which are useful for pre-civil registration research. Maps, atlases, deeds, and an African Americana collection round out the primary source holdings. The Delaware World War Service Records Collection is held here as well, which can be valuable for tracing early 20th century family members.
The Society's digital resources include searchable photograph and document digital collections, an objects catalog, an archives catalog, and a library catalog. You can access some of these online through dehistory.org before deciding whether an in-person visit is worth the trip. That said, a lot of the most useful material, especially the surname cards and manuscript collections, can only be used on site.
Wilmington Public Library Genealogy Resources
The Wilmington Public Library offers several genealogy tools that are worth knowing about. One of the most useful is the Delaware Index, where librarians have indexed major news stories from local newspapers going back to 1922. From 1922 to 1977, that index exists in card file form. To check whether a family name appears in those early decades, contact the Reference Department directly. For the more recent period, 1989 to the present, you can search the Delaware Libraries Catalog Newspaper database yourself by changing the Library field to "Newspaper Index" in the advanced search.
The library also provides in-library access to Ancestry Library Edition, which requires an in-person visit. This is the same Ancestry database most people use at home, but the library version gives you access at no charge. You just need to come in. The library maintains a Genealogy LibGuide as well, which pulls together key databases and local resources in one place. It's a good first read if you are just getting started with Wilmington research.
One more resource worth noting: the library's Diocese of Wilmington database lets you search Parish Sacramental Registers, including Baptismal and Marriage registers from older parishes through 1900, area death records, and the Catholic Cemeteries Burial Database. For families with Catholic roots in Wilmington, this can fill gaps that civil vital records don't cover.
Hagley Museum and Library Wilmington Genealogy
The Hagley Museum and Library is located at P.O. Box 3630, Wilmington, DE 19807-0630, phone (302) 658-2400. Hagley holds the largest collection of US city directories in Delaware, which makes it an essential stop for anyone tracing Wilmington ancestors. City directories let you confirm where someone lived, what they did for work, and who else was in their household, year by year.
Hagley also holds US Census records on microfilm for Delaware from 1790 to 1920, as well as records for many counties in Pennsylvania and Maryland. Manufacturers' and agricultural censuses are part of the collection too. These are less commonly used but can place an ancestor in a specific trade or farm during a specific decade.
For anyone with du Pont family connections or ancestors who worked in the Brandywine powder yards, Hagley is the primary archive. The library holds DuPont Company records including 19th century company pay records, du Pont family correspondence, and lists of Irish workers. The manuscript collections document over 1,000 American business and technology firms. Hagley has also digitized 178 oral history interviews with people who worked in the powder yards or lived nearby, which can add color and context to what you find in the written records.
Wilmington Genealogy Centers and Other Archives
The Wilmington Delaware FamilySearch Center is located at 143 Dickinson Lane, Wilmington, DE, phone (302) 654-1911. FamilySearch centers provide free access to genealogy databases, microfilm, and staff who can help with research. You don't need to be a member of any church to use them. The Winterthur Library at 5105 Kennett Pike, Wilmington, DE 19735, phone (302) 888-4681, is a FamilySearch affiliate and holds additional resources for the region.
The Jewish Historical Society of Delaware is located at 505 North Market Street, Wilmington, DE 19801-3091, phone (302) 655-6232, email info@jhsdelaware.org. Their holdings include synagogue records, a biographical file, a photograph collection, family collections, and genealogical reference books. For families with Jewish roots in Wilmington, this is a focused and often overlooked resource.
The Delaware Genealogical Society is also based in Wilmington at 505 N. Market Street, Wilmington, DE 19801-3091. It focuses on Delaware and surrounding states and can connect you with fellow researchers who may have already worked on families you are tracing. Some members maintain files on specific surnames that aren't available anywhere else.
For records held at the state level, the Delaware Public Archives is in Dover at 121 Duke of York St, Dover, DE 19901, phone (302) 744-5000. Even if your research is centered on Wilmington, some New Castle County records are held there. The Office of Vital Statistics for New Castle County is at 258 Chapman Road, Newark, DE 19702, phone (302) 283-7130.
Searching Wilmington Genealogy Records Online
FamilySearch is one of the best free starting points for Wilmington genealogy. The site holds the 1847-1954 vital records collection described above, plus Delaware census records, probate indexes, land records, and more. You can search by name, date range, and record type at no cost. Create a free account to save results and build a family tree.
The Delaware Public Archives offers a free digital ancestry portal at archives.delaware.gov/digital-ancestry/. This gives you online access to digitized state records without visiting Dover. It's worth checking here before making any in-person trips.
Find A Grave at findagrave.com has over 97 million grave records and covers many Wilmington-area cemeteries. Entries often include photos of headstones, family connections, and links to other records. Veterans Records at the National Archives can also be searched online through archives.gov, useful for tracing military service from any era.
New Castle County Genealogy Records
Wilmington is the county seat of New Castle County. County-level records for the entire northern Delaware region, including land records, probate files, and court documents going back to the 1670s, are held through New Castle County offices and the Delaware Public Archives. The county page covers those resources in detail.
Nearby Cities with Genealogy Resources
These cities are close to Wilmington and each has its own genealogy resources and record-keeping offices worth exploring.