Access Mercer County Marriage Records

Mercer County marriage records are maintained at the Recorder of Deeds office in Princeton. The office files all marriage licenses and certificates for the county. Mercer County is one of Missouri's smaller counties, located in the north-central part of the state near the Iowa border. If you want to find a marriage record, get a copy, or apply for a new license, the Recorder's office is your only stop. You can search by name or date, visit in person, or send a written request through the mail.

Mercer County Recorder of Deeds

The Mercer County Recorder of Deeds is the sole office for marriage records in the county. It is located in the Mercer County Courthouse in Princeton. The office issues new licenses, maintains filed certificates, and provides copies. Staff can search for records by name or date. Because the county is small, the office may have limited hours or staff, so calling before you visit is a smart move.

The Mercer County Recorder of Deeds website provides contact information and basic details about the office. Missouri marriage license requirements apply in Mercer County just as they do in every other county. Under RSMo Chapter 451, both parties appear in person with valid photo ID and a Social Security number. No blood test. No waiting period. The license comes out the same day.

Below is a screenshot of the Mercer County Recorder's website, showing the office's online presence and contact details.

The website is basic but gives you what you need to reach the office. For actual record searches, you will need to call or visit.

How to Find Mercer County Marriage Records

Go to the Recorder's office in Princeton for a direct search. Give the staff the name of at least one spouse. If you have a date, that helps. They pull the file and make copies while you wait. Plain copies run about $1 to $2 per page. Certified copies are around $9. Cash is the best payment option in a small county office.

You can also mail a request. Include the full names of both spouses, the marriage date, and a check or money order for the copy fees. Add a self-addressed stamped envelope. Mail requests to small offices like Mercer County may take two to four weeks depending on workload. Call first to verify the fees. There is no online search portal for Mercer County marriage records at this time, so phone, mail, or an in-person visit are your options.

Mercer County Marriage License

Both people must appear together at the Recorder's office. Each person needs photo ID and a Social Security number. No blood test is needed. There is no wait. The license is issued the same day you apply.

The fee for a Mercer County marriage license is about $51. After it is issued, the license works in any Missouri county for 30 days per RSMo 451.090. The officiant sends the signed license back to the Mercer County Recorder within 15 days of the ceremony under RSMo 451.130. If either person was previously married, the month and year that marriage ended is required on the application. Missouri requires both parties to be at least 18 years old, with no exceptions since August 28, 2025.

Note: If you are coming from out of the area, call the Mercer County office to make sure they will be open on the day you plan to visit.

State Marriage Records for Mercer County

The Missouri Bureau of Vital Records has an index of marriages recorded since July 1, 1948. They issue a Certified Statement Relating to Marriage, which lists the names, date, and county. It does not include all the details from the full certificate at the Mercer County Recorder's office. For the complete document, contact the county.

Order the state statement through the Bureau of Vital Records by mail, in person in Jefferson City, or through VitalChek. VitalChek adds a service fee. Under RSMo 193.255, certified copies require the requester to show a direct and tangible interest in the record.

Historical Mercer County Marriage Records

Mercer County was formed in 1845. Marriage records have been kept since the county's organization. Older records are on file at the courthouse in Princeton. The Missouri State Archives also holds microfilm copies of Mercer County records. FamilySearch provides free access to additional microfilm at any of their centers. These two sources cover a lot of ground for genealogy research in Mercer County.

Public Access in Mercer County

Missouri marriage records are public under the Missouri Sunshine Law (Chapter 610 RSMo). You can request any marriage record on file in Mercer County without being named in the record. Plain copies are open to all. Certified copies require a direct and tangible interest per RSMo 193.255. Personal data like Social Security numbers may be redacted. The Missouri Recorders Association lists all 114 county offices if you need to search beyond Mercer County.

More Resources for Mercer County

If you are changing your name after a marriage in Mercer County, you will need certified copies of the marriage certificate. The Recorder's office in Princeton can provide them for about $9 each. Get at least two or three copies so you can send them to the Social Security Administration, the DMV, and your bank at the same time. Waiting to send one copy around to each agency takes much longer.

Mercer County is a small county with a tight-knit community. The Recorder's staff know the local records well and can often help with searches that might take longer in bigger counties. If you are unsure whether a marriage was filed in Mercer County or a neighboring county, the staff may be able to point you in the right direction.

Nearby Counties

These counties neighbor Mercer County in north-central Missouri. Records stay in the county where the license was issued, so verify the right county before making a request.