You may apply for a marriage license in any county in Minnesota regardless of residence or where the ceremony takes place, if you are going to be married within the geographical borders of Minnesota.
After a license is issued, it is valid for six months.
According to Minnesota Statute 259.13, an applicant who has a felony conviction may not use a different name after marriage.
Locations (see business hours)
Fees
Marriage license: $115
Marriage license with 12 hours of premarital education and a completed and signed 
Statement of Premarital Education: $40
Administration Center Vitals counter accepts Discover, Visa and MasterCard.
The Western Service Center and Northern Service Center DOES NOT accept credit or debit cards.
Applications
You can complete a marriage license application using:
Paper form
Both parties present to sign
Both parties applying for the marriage license must be present to sign the application.
If you have completed an online form, you can go to any location to sign it. The application will be available to sign immediately after you send it electronically. Make sure you have your form confirmation number or say that you’ve completed the form online.