- Valid photo identification and proof of Colorado residency (including current mailing address) is required to register. If you applied online, bring your photo ID and proof of Colorado residency when you come in to unlock your full borrowing potential.
- Ages 60 and over, apply for a senior account.
- Ages 13-17, show valid photo ID or have a parent or guardian present to apply for a juvenile account.
- Ages 12 and under, a parent or guardian must be present to apply for a juvenile account.
- Educators, apply for educator library account, to use for educational purposes.
- Live outside of City of Boulder or Boulder County?
Documentation may include: driver’s license, postmarked mail addressed to you, car registration in your name or a copy of a current lease. If you are unsure, please call us.
Learn more about fines and charges.
Cardholder responsibilities are:
- Returning all materials borrowed on your card by the due date or paying late fees.
- Paying replacement fees for library items lost or damaged in your care. Your account may be referred to a collection agency if materials become five weeks overdue.
- Immediately reporting a lost or stolen card.
- Reporting any changes to your address, phone number or email address to the library.
- Adhering to these responsibilities if you lend your card to someone else.
- Follow the Computer Use and Internet Access Policy when using a library computer.
Library staff can renew your card over the phone or at any location. Be sure to have your card handy if you call! To change the address on your card, you must present proof of the new address. Phone numbers and email addresses can be changed online or over the phone.
Lost or stolen library cards:
If your card is lost or stolen, call 303-441-3100 or come to any location to report it. We require a photo ID to replace library cards.
Available to City of Boulder and Boulder County residents with valid photo identification and proof of address. This account is good for five years and allows:
- Check out materials at any of our library locations
- At home access to most of our streaming & downloadable media (ebooks, audiobooks, music, movies, magazines) and databases
- Holding Flatirons Library Consortium, Prospector, Mobius and Interlibrary Loan materials
Live outside of City of Boulder or County?
You may get a free limited-use library card. However, some materials and services are available only to City of Boulder and Boulder County residents.
Temporary Online Account
This account provides limited at home access to some library resources and does not include OverDrive. It is valid for only two weeks. All online library card applications begin as temporary accounts. To upgrade your privileges and get your card, bring your photo ID and proof of Colorado residency to any library location.
For those who have a photo ID but no proof Colorado residency documentation, have a General Delivery address, or are temporarily residing at a local shelter. This account is good for three weeks and allows:
- Check out three items at any of our library locations
- Remote access to most of our streaming & downloadable media (ebooks, audiobooks, music, movies, magazines) and databases
All other borrowing policies apply.
Available to those under the age of 18. Ages 12 and under, must have a parent or guardian consent in person or sign their application. Ages 13-17, can show valid photo ID or have a parent or guardian consent in person or sign their application. Children must be present in order to open an account.
Parents or guardians are responsible for library items and any late fees and lost or damaged item charges incurred by children under the age of 18. Juvenile accounts also grant access to the library’s computers and internet. Parents are expected to accompany children in need of supervision on library visits to ensure the safety and well-being of children. At all times, parents or caregivers are responsible for their child’s behavior, safety, and the material/information they access at the library.
Available to City of Boulder residents 60 years or older. Senior accounts are exempt from late fees on Boulder Public Library materials. However, late fees on items from other libraries, lost or damaged item charges and collection agency fees still apply.
Available to educators in the Boulder Valley School District, and preschools, private schools and home-schools in Boulder County. This account is good for one year and allows:
- Holds on up to 20 books (no media)
- Checkout of up to 40 Boulder Public Library books (no media) for six weeks
- Access to Educator Resources
Most accounts allow the following number of items checked out at any one time. “Your Lucky Day” materials and Investikit are not renewable.
|Material Type||Limit||Loan Period||Renewal|
|Audio Books||15||3 weeks||Yes|
|Music CDs||10||3 weeks||Yes|
ebooks & audio
|Books in a Bag||1||6 weeks||No|
Note: the maximum number of items checked out on an account at one time is 99 items
See borrowing exceptions for Courtesy, Senior and Teacher accounts and Books in a Bag kits.
|Material Type||Late Fees
|Maximum Late Fee|
books and music
|No late fees||No late fees|
|Books in a Bag||$0.20||$5.00|
Note: Juvenile materials (except DVDs) do not accrue daily overdue fines. These items are still subject to our normal billing cycle for late items (more than 3 weeks overdue).
Interested in renewing a something? Boulder Library items may be renewed up to three times if there is not another patron waiting for the item with a pending hold. Renew items in person, by accessing your account online, or by telephoning 303-441-3100. You will need your library card number to renew items. Prospector items are not eligible for renewal using the automated telephone renewal system. Please call the number above or stop by the Main library, or the Meadows or Reynolds branch libraries during business hours.
You can return any library items belonging to the Flatirons Library Consortium or Prospector libraries at the any of our locations with a few exceptions:
- The Investikit must be returned to the branch where it was checked out from. The Investikit cannot be returned through the bookdrop.
Due Date & Overdue Notification
Knowing when your library items are due is your responsibility. There is no grace period. To help you keep track of item due dates, the library sends the following notices:Three day advanced courtesy e-mail notice.
- First overdue notice is sent after 7 days.
- Second overdue notice is sent after 14 days.
- A bill for material replacement is sent at 21 days.
Be aware that non-receipt of these notices does not release you from your responsibility to return materials on time. It is your responsibility to let us know when your mailing address, telephone number or e-mail address has changed. You must have a valid e-mail address in your library account in order to receive courtesy notices. If you do not provide us with an e-mail address, the one-week and two-week overdue notices will be provided to you by telephone. The bill for replacement charges (sent after items are three weeks overdue) is always mailed to you. To update your e-mail address, call 303-441-3100 or log on to your account. Library accounts with items that become five weeks overdue may be sent to a collection agency.
Paying Fees & Blocks on Your Card
You may pay any fees with cash, personal check or credit card at any library location. Note that any fees totaling more than $10.00 will block your borrowing and renewal privileges.
Your borrowing, renewal, and database access privileges are blocked if:
- you have 1 or more overdue library items that have holds, or
- you have 1 or more library items that are 15 days overdue, or
- more than $10.00 in fees owed (see payment information), or
- your account has expired.
Lost and Damaged Items
When library items become three weeks overdue, a billing notice is sent stating the replacement fee. This fee must be paid if the item has been lost. If the Library item is returned, late fees are charged and the replacement fee is waived from your account.
Replacement fee = Library’s cost of the item + $5.00 processing fee
Books in a Bag have a separate replacement fee structure.
The replacement charge for ANY materials borrowed from a Prospector library is $40.00, no exceptions.
The Library is UNABLE to accept replacement items in exchange for any lost materials or refund the replacement fee should you locate the material at a later date.
The Library charges to replace missing parts or to repair or replace damaged library items. Extreme heat or direct sunlight may harm audio-visual library items. You are responsible for paying replacement charges for any materials that are damaged while checked out on your library account.
The replacement fee for items with damaged or missing parts is $15.00 for items belonging to the Library (see exceptions for Books in a Bag) and $40.00 for items belonging to any Prospector library. The replacement fee will be waived if all parts are returned, though late fees may still apply. Ask a library staff member for specific replacement fees for damaged library materials.
The Library assumes no liability for the use of audio-visual library items, including but not limited to CDs, DVDs, and videos or for the equipment on which these items are played.
If an audio-visual item that you have borrowed malfunctions or has sustained damage by the previous user, please notify a library staff member so it can be repaired or replaced.