Residency means different things for different purposes. Some examples are:

• Gaining the ability to vote in this state
• Securing a Michigan driver license
• Registering your motor vehicle
• Registering a recreational vehicle or boat
• Being required to file income tax statements in Michigan
• Becoming a licensed professional in Michigan
• Being able to pay in-state tuition for colleges and universities

For each of these instances, follow the link above to gain more information. In the case of in-state college tuition, each college has its own requirements. You will need to contact the college you plan to attend.