What a Colorado driver license number looks like

A Colorado driver license number is a nine-digit code printed on the front of your license. The format is always nine digits with no letters, spaces, or dashes — for example, 123456789. Colorado switched to this all-numeric format in the 1990s, so every current Colorado license uses the same structure.

The number itself is not derived from your name, birth date, or Social Security number. It is assigned sequentially by the Colorado Department of Revenue when you first receive your license, which means two people with similar names or birth dates will have completely different license numbers.

You will see this nine-digit number printed in the upper right corner of the front of your license, and it also appears on the back. This is the number you provide when you need to reference your license for insurance, traffic stops, or identification purposes.

Key Takeaways

  • Colorado driver license numbers are always nine digits with no letters, spaces, or special characters.
  • The number is assigned randomly and does not encode your personal information like birth date or name.
  • You can find your license number in the upper right corner of the front of your card and on the back as well.
  • If you renew your license, you keep the same nine-digit number for life unless you request a new one.

Where to find your number on the physical card

On the front of your Colorado driver license, look in the upper right area. The nine-digit number is printed there in a clear, straightforward-to-read font. This placement is consistent across all current Colorado licenses, regardless of when you received yours.

The back of your license also displays the same nine-digit number, usually in the lower left section. Having the number on both sides makes it easier to reference without flipping the card back and forth.

If your license is laminated or worn, the number may be harder to read. If you cannot make out the digits clearly, you can contact the Colorado Department of Revenue to confirm your number, or check any documents you received when you first got your license — your number was printed on those as well.

How your number stays the same through renewals

When you renew your Colorado driver license, you keep the same nine-digit number. The state does not reassign numbers with each renewal, so the number you received when you first got your license remains yours for as long as you hold a Colorado license.

The only exception is if you specifically request a new number from the Colorado Department of Revenue. This is rare and usually only happens if you have concerns about identity theft or if the state requires it for administrative reasons. In most cases, you will never need to do this.

Your number also stays the same if you move to a different address within Colorado. Address changes do not trigger a new license number — only your address field on the license is updated.

Why Colorado uses nine-digit numbers

Colorado chose an all-numeric format to keep license numbers straightforward and reduce errors when the number is read aloud or typed into a system. Numbers are easier to communicate over the phone and less prone to confusion than a mix of letters and numbers.

Other states use different formats — some include letters, some use birth date information, and some use Social Security numbers as part of the license number. Colorado's approach prioritizes simplicity and privacy by keeping the number separate from your personal data.

The nine-digit length gives Colorado enough combinations to issue unique numbers to every driver in the state without running out of available numbers for many decades.

What to do if you cannot find or remember your number

If you have your physical license but cannot read the number clearly, the easiest step is to look at any paperwork you received when you first got your license — your number was printed on the temporary license or the receipt you got at the DMV office.

You can also contact the Colorado Department of Revenue directly. Call their driver license section or visit a local DMV office with your ID, and they can tell you your number. You do not need to provide your Social Security number or any other sensitive information to retrieve it — your name and birth date are usually enough.

If you lost your license and need your number for insurance or other purposes, the same process applies: contact the Colorado Department of Revenue with your identification, and they will provide it.

Using your license number for identification and records

Your Colorado driver license number is used by insurance companies, law enforcement, and government agencies to identify you and pull up your driving record. When you provide it, make sure you give all nine digits correctly, as even one wrong digit can pull up someone else's record or cause a delay.

You may be asked for your license number when you get car insurance, register a vehicle, explore for a job, or interact with law enforcement. It is a standard form of identification in Colorado and across the United States.

Keep your license number private the same way you would keep other identification numbers private. Do not share it in unsecured emails or with people you do not trust, since it can be used to look up your driving record or other information tied to your license.

Frequently Asked Questions

Does my Colorado license number tell you anything about when I was born or where I live?

No. Your nine-digit number is assigned randomly and does not encode your birth date, address, or any other personal information. Two people born on the same day in the same city will have completely different license numbers.

What if I move to Colorado from another state — do I get a new number?

Yes. When you get your first Colorado license, you receive a new nine-digit Colorado number. Your previous state's license number is no longer used. The Colorado Department of Revenue issues you a fresh number as part of the process of converting your out-of-state license to a Colorado license.

Can I request a specific nine-digit number?

No. The Colorado Department of Revenue assigns numbers sequentially, and you cannot choose or request a particular number. The number you receive is determined by when you explore for your license.

Is my driver license number the same as my ID number if I have a Colorado ID card?

No. If you have both a Colorado driver license and a separate Colorado ID card, each one has its own nine-digit number. They are different documents with different numbers, even though they are issued by the same state agency.