Longmont Library Book Sale — Longmont, CO

409 4th Ave, Longmont, CO 80501

Sep 1, 2026 – Sep 30, 2026

*Unconfirmed Date — the source did not list an exact date. Check the sale details link before you go.

Longmont Library is holding a book sale in Longmont, CO. Dates and hours: Preview: Wed 3:30-8, Public Sale: Thu 9-8, Public Sale: Fri, Sat 9-5. Special pricing: $0.50-$5, Sat $10/bag. Policies: Credit cards accepted, Preview for Friends (join at door). Additional sale dates: Nov 1, 2026.

While we strive for accuracy in our listings, we can't guarantee that all the information is completely accurate or up to date.

Directions Sale details

Bag Day Profit Calculator

Estimate your cost per book and resale margin before you go.

Bag / Entry Cost ($)

Estimated Books per Bag

Average Estimated Resale Value ($)

Effective Cost Per Book

$0.33/book

Total Estimated Profit Margin

$115.00

Savings vs. ~$17 new retail98%

Estimates only — resale values vary by title, condition, and marketplace fees.