Archives in Delaware are few in number but tightly concentrated. Our database lists four, and three of them are in Dover, the state capital. That pattern follows how the state works. Delaware has only three counties, one central records agency, and a long habit of keeping government paperwork close to the legislature and the courts. If you are tracing a family line, checking the history of a parcel of land, or asking for a public record, it helps to know which office holds which kind of material before you set out.

How Archives Are Organised Across Delaware's Three Counties

Delaware runs about 96 miles from north to south, and it has just three counties: New Castle in the north, Kent in the middle, and Sussex in the south. Wilmington to Dover is roughly an hour by car. Because distances are short, residents rarely need an overnight trip to reach a records office. The harder question is usually which office to call, not how far away it is.

Archival material in the state falls into a few broad groups:

A common mistake is to assume one office covers all of these. A birth certificate, a property deed, a baptism entry, and a police report each sit in a different place. Sorting out which category your request belongs to is the first real step.

Delaware Public Archives: The State's Central Records Agency

The Dover Public Archive listed in our database sits at 121 Duke of York Street in Dover, and its listed phone number is 302-744-5000. It corresponds to the Delaware Public Archives, the state's official repository. The agency was created in 1905 and today operates within the Delaware Department of State. Its authority comes from Title 29 of the Delaware Code, which sets out how public records are preserved and how state agencies must manage them.

The archives do two jobs at once. They preserve records of lasting historical value, and they help state agencies and local governments decide how long to keep everyday paperwork. That second role matters to residents indirectly. When a school district or town asks how long it must hold a record before disposal, it is working under retention schedules that the archives help establish.

For researchers, the holdings reach back to the colonial and early statehood periods. Delaware was the first state to ratify the U.S. Constitution, on December 7, 1787, and the state's long paper trail shows it. Typical research topics include:

Delaware's Freedom of Information Act, found in Title 29, Chapter 100 of the Delaware Code, is a separate route. It lets you request current public records from a public body. Under that law, a public body generally has 15 business days to respond to a request, though it may tell you more time is needed. If a record is recent, ask the agency that created it. If it is old and has been transferred, the archives are the better place to start.

Kent County and Dover: Where Delaware's Listed Archives Cluster

Dover accounts for three of the four listings, and all three fall in Kent County. The state capital draws government functions, so it is natural that records collect here. Besides the Dover Public Archive, the database lists the Dover Police Records Archive at 400 South Queen Street, reachable at 302-736-7105.

These two offices serve very different needs. The public archive is a research facility. You go there to read historical documents, study a family or property history, or find a state record that has passed out of day-to-day agency use. The police records archive handles law enforcement files. Requests there usually involve an incident report, an accident report, or a past case. A police records unit cannot help with genealogy, and the state archives cannot release a recent police report.

If you need a police record, have these details ready before you call:

Some content in police files is restricted by law, especially records involving juveniles or active investigations. Staff may redact parts of a report even when they release it. If you need a formal criminal history rather than a single incident report, that is generally handled through the Delaware State Bureau of Identification, not the city police.

Outside Dover, Kent County is largely farmland and small towns. Residents there often drive to Dover for any records matter, so the city works as the county's practical records hub. Plan around the legislative calendar if you can. The General Assembly meets from January through June 30, and downtown Dover is busier and parking is tighter on session days.

New Castle County and Wilmington: Church, Corporate, and Historical Collections

The only other listing in our database is the Wilmington Diocese Archive at 8 Old Church Road in Wilmington, in New Castle County. Its listed phone number is 302-655-0597. The Catholic Diocese of Wilmington covers all of Delaware and the Eastern Shore of Maryland, so its archive reaches well beyond the city limits.

A diocesan archive mainly preserves church records rather than government ones. Researchers most often ask about sacramental entries such as baptisms, confirmations, and marriages, along with parish histories and the files of closed or merged parishes. Policies differ from one diocese to another, so call first. Expect to be asked for the full name of the person, an approximate date, and the parish involved. Access to recent records is usually restricted to the person named or to close family.

New Castle County is the state's most populous county and home to Wilmington and Newark. That density means more private institutions that keep archives but are not in our database. Examples include the Hagley Museum and Library, which holds business and technology records tied to the Brandywine region, the Delaware Historical Society in Wilmington, and the special collections at the University of Delaware in Newark. Each sets its own hours and access rules, so confirm before visiting.

The northern county also has the busiest county-level records offices. If you are researching a house or lot in the Wilmington area, you will likely visit the New Castle County Recorder of Deeds and Register of Wills, not an archive. Those offices answer many of the questions people assume belong to an archive.

Preparing for an Archives Visit Anywhere in Delaware

Archives reward preparation. Staff can often find a record in minutes if you give them a name, a place, and a time period. Without those, a search can take hours or end with nothing.

Start with the offices listed on this page, then widen your search to county recorders, registers of wills, and private archives as your question requires. A short phone call to the right office usually saves a long drive to the wrong one.

Government archives in Delaware are administered by the state archives and records management division, which is typically housed within the Secretary of State's office or a dedicated cultural affairs agency. The state archives preserves official government records while also maintaining collections of historical significance to Delaware residents.

Archives locations are available in 2 cities across Delaware. They are spread across 2 counties.

Cities with the highest concentration include Dover, Wilmington, which tend to have more archives facilities due to their roles as county seats, state capitals, or historic centers of government activity.

Residents of Delaware conducting genealogical or historical research should check whether their county or city maintains a separate archives in addition to the state repository, as many local records are held at the municipal or county level.

Archives by Counties

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Researchers in Delaware can often access digitized state archives records through the state library's online portal without visiting in person. For records not yet digitized, contact the archives office in advance to schedule a research appointment and confirm that the specific collection is available for public review.

Browse Archives by county across Delaware to find the nearest location.

Reaching Archives Beyond the Listings: Sussex County and Rural Delaware

Our directory shows listings in Kent and New Castle counties only, which leaves Sussex County, the state's largest by area, without an entry. That does not mean Sussex has no records. Its county seat, Georgetown, houses the county Recorder of Deeds and Register of Wills, and local historical societies in the southern towns keep photographs, church papers, and family files. Rural residents often depend on these small volunteer-run collections, which may open only on certain days or by appointment.

For most Delaware research, the state's compact size works in your favor. The central archives in Dover can be reached from Sussex or New Castle County in a day trip. Phone and email requests are also common, and many offices will tell you quickly whether they hold what you need. If you live in New Castle County, you can combine a trip to Wilmington's diocesan archive with other local research. If you live in Kent County, nearly every state-level record source is within a short drive.

When you contact any office, state your request in one or two sentences, give names and dates, and ask what proof of identity or relationship it requires. That approach gets you a faster and more accurate answer than a general question about what the office holds.

Frequently Asked Questions About Archives in Delaware

The Delaware Public Archives is the state's central repository, and it operates within the Delaware Department of State. It was established in 1905 and works under Title 29 of the Delaware Code. Our database lists it as the Dover Public Archive at 121 Duke of York Street, with the phone number 302-744-5000. The agency preserves historical state records and also advises state agencies and local governments on how long to keep their records. For historical state documents, it is usually the first call to make.

Dover is the state capital and the seat of Kent County, so state government functions and their records gather there. The database lists the Dover Public Archive, the Dover Police Records Archive at 400 South Queen Street, and one further Kent County entry. Wilmington has the only listing outside Kent County. Delaware has just three counties, so a central location for state records makes practical sense, and most residents can reach Dover within about an hour from anywhere in the state.

Often yes, but the answer depends on the type of record. The office is listed at 400 South Queen Street in Dover, and you can call 302-736-7105 to ask about the process. Bring photo identification and as much detail as you have, such as the date, location, and any case number. Records that involve juveniles or open investigations may be withheld or redacted. A full criminal history is a different request and is generally handled by the Delaware State Bureau of Identification.

The Wilmington Diocese Archive, at 8 Old Church Road in Wilmington, preserves records of the Catholic Diocese of Wilmington, which covers Delaware and Maryland's Eastern Shore. Typical material includes sacramental records, parish histories, and files from parishes that have closed or merged. Call 302-655-0597 before visiting, because access is often by appointment and recent records may be limited to the person named or close family. Be ready to give a full name, an approximate date, and the parish involved.

Deeds and wills are kept at the county level. Each of Delaware's three counties has its own Recorder of Deeds and Register of Wills, so you contact the office in the county where the property or the estate was handled. For Wilmington-area property, that means the New Castle County offices. For Dover-area property, it means the Kent County offices. Older volumes may also have been transferred to the Delaware Public Archives, so ask both places if you cannot find an early record.

Delaware's Freedom of Information Act, in Title 29, Chapter 100 of the Delaware Code, generally requires a public body to respond within 15 business days. The body may reply that it needs more time, may deny part of a request under a listed exemption, or may charge reasonable fees for copying and staff time. Put your request in writing, describe the record as precisely as you can, and keep a copy. If you are denied, the law provides a process for review, which starts with the Delaware Department of Justice.

Call first to confirm hours and whether an appointment is required. Bring photo identification, a list of names with alternate spellings, and the dates and places involved. Ask about copy and scan fees before you start, since each office sets its own. In Dover, check whether the legislature is in session, because the General Assembly meets from January to June 30 and parking downtown gets tighter. Write down collection names and volume numbers as you work so you can return to the same item later.