Access Naperville Genealogy
Naperville genealogy records span two counties and one of the best public library genealogy programs in the state. With a population near 149,540, the city sits in both DuPage County and Will County, so your search may pull from two different clerk offices. Vital records for Naperville residents go through the DuPage County Clerk for the north side or the Will County Clerk for the south side. The Naperville Public Library also runs a strong genealogy program with free database access and a dedicated genealogy librarian on staff. Whether you need a birth record from 1879 or want to search old Naperville newspapers, this page walks you through the key sources for tracing your roots in Naperville.
Naperville Genealogy Quick Facts
Naperville Vital Records for Genealogy
Naperville straddles DuPage and Will counties. That means your vital records search depends on which part of the city your ancestor lived in. Most of Naperville falls in DuPage County, so the DuPage County Clerk at 421 N. County Farm Road in Wheaton handles the bulk of requests. Their phone number for vital records is (630) 407-5500. DuPage County has birth certificates going back to 1879. For genealogy copies of births and marriages over 75 years old, the fee is just $1 per record. Death records older than 75 years cost $5 each.
The south side of Naperville sits in Will County. The Will County Clerk is at 302 N. Chicago Street in Joliet. Call (815) 740-4615. Will County has birth and death records from December 1, 1877 and marriage records from 1836. Their fees run $14 for birth, death, or marriage records with an extra $1 for each certification. Will County warns that VitalChek is not the best option for genealogy orders because of high fees for old records that may not even exist in their files.
Under the Vital Records Act (410 ILCS 535), birth records become available for genealogy research after 75 years. Death records open up after 20 years. Marriage records are accessible after 50 years. These rules apply at both the DuPage and Will County clerk offices. Genealogy copies are uncertified and stamped for genealogical use only.
Naperville Library Genealogy Resources
The Naperville Public Library is a standout resource for genealogy in the western suburbs. They have a dedicated Genealogy Librarian, Amy Tucek, who you can reach at (630) 637-4959. Not many public libraries in Illinois have a staff member focused solely on genealogy, so this is a real advantage for researchers working on Naperville family lines. The library is also a FamilySearch Affiliate Library, which gives you access to certain restricted digital records that you can only view at an affiliate location.
The Naperville Public Library provides free in-library access to Ancestry Library Edition, Fold3 for military records, and HeritageQuest for census data and local histories. These tools cost money at home. At the library, they are free. The library also maintains the Naperville Digital Heritage Collection, which holds over 300 items related to local history. Photos, documents, maps, and more are in the collection. You can browse it online or on-site.
The Naperville Newspaper Digital Collection is another key tool for tracing family in the area. Old newspapers hold obituaries, birth and marriage notices, and ads that mention local residents by name. If your ancestor lived in Naperville in the 1800s or early 1900s, these papers may fill in gaps that official records cannot.
DuPage County Court Records
Court records add depth to Naperville genealogy research. The DuPage County Circuit Clerk is part of the 18th Judicial Circuit. Their office is at 505 N. County Farm Road in Wheaton. You can call (630) 407-8700 for general questions or (630) 407-8904 for probate. The DuPage County online case search lets you look up civil, criminal, probate, and family cases from your computer. Probate files often contain wills, estate inventories, and guardianship papers that tell you a lot about a family.
For land and property records, the DuPage County Recorder of Deeds has an online search tool. Name searches go back to 1961. Parcel searches start from 1985. Address searches begin in 1995. Plat maps go all the way back to the 1800s. Land records show when your ancestor bought or sold property in Naperville and can help piece together where they lived and when.
Note: Will County court records are handled separately through the 12th Judicial Circuit at their online portal.
Naperville Regional Archives
The IRAD depository for DuPage and Will counties is at Northern Illinois University in DeKalb. The Founders Memorial Library, Room 245B, holds historical local government records for both counties. Call (815) 753-1807 for hours. IRAD stores birth, death, and marriage records along with land deeds, naturalization papers, probate files, and old court documents. Research is free. You can also submit up to two names by mail or phone if you cannot visit in person.
The Local Records Act (50 ILCS 205) is the law that created the IRAD system and protects these old records from being thrown away. For Naperville genealogy, IRAD can fill in the gaps when the county clerk does not have what you need, especially for very old records from the mid-1800s.
State Records for Naperville Genealogy
The Illinois Department of Public Health holds statewide birth and death records from 1916 to the present. Their office is at 925 E. Ridgely Ave. in Springfield. You can call (217) 782-6554 for questions. Genealogy copies of birth records (75+ years old) and death records (20+ years old) cost $10 each and must be ordered by mail only. You cannot order genealogy copies online, by fax, or through VitalChek. Processing takes about 12 weeks, so plan ahead.
The Illinois State Archives has free online databases that can help with Naperville genealogy. Their Statewide Marriage Index covers 1763 to 1900. Death indexes cover pre-1916 and 1916 to 1972. Public domain land sale records hold about 550,000 entries across the state. All of these databases are free to search from home.
DuPage County Genealogy Records
Most of Naperville falls in DuPage County. All vital records for the north side go through the DuPage County Clerk in Wheaton. The county handles birth, death, marriage, land, and court records for Naperville and dozens of other communities. For full details on DuPage County genealogy resources, fees, and contact info, visit the county page.
Nearby Cities
These cities near Naperville also have genealogy resources and are served by DuPage, Kane, or Will County clerks.