This is a test of commonsense. Complete the next sentence:

How to change address on colorado vehicle registration
Identify the county that you live in.
It's important that you only visit a dmv office within your county. Since vehicle registration is county-specific, a dmv in another county (even if it's technically nearer to your residence) will be unable to help you.
This information should be accessible by looking at a map. To find your county, you can also use an online map service, such as google maps.