2026 ─ Received two NACo awards for the History of Video Games and Cold Case Files.

2026 ─ Greg Bowman's Messy Monday wins VPLDA award for Outstanding Program for Children.

2025  ─ Emily Valdez won a VACo Award for her monthly Teen Photographers program. 

2025  ─ Received five NACo Awards for Ashburn's Senior Memoir Group, What’s on Your Mind?, Teen Photographers, Project Find US, and Makerspace for English Learners.

2025 ─ Murrin O'Connell was named Virginia Public Library Staff Member of the Year by the Virginia Public Library Directors Association.

2024  ─ Received four NACo Awards for Spoke’n Word Bike Event, Civic Lab, Raising Awareness of the Law Library, and Teen Micro Art Gallery.

2024, 2023, 2022, 2019, 2018 ─ Voted "Favorite Government Service" by readers of Loudoun Now .

2024  ─ Won Innovative Outreach Effort Award from the Virginia Public Library Directors Association.

2023 ─ Received VACo award for LCPL Fights Food Insecurity program.

2023 ─ Received NACo Award for Pre-K Skill Builders.

2022, 2021, 2020, 2018, 2017, 2016, 2013 ─ Named an America's Star Library by Library Journal.

2022  ─ Law Library's Patrick Ramos named Unsung Hero by Virginia Lawyers Weekly.

2022 ─ Won VACo award for Teen Micro Art Gallery at Brambleton Library.

2022 ─ Stephanie Wiggins earned VLAPAF Supporter of Professional Associates Award from the Virginia Library Association.

2022  ─ Received NACo Award for the Online Learning Hub and Quarantine Survival Kit.

2021 ─ Named Honorable Mention for Library of the Year by Library Journal.

2021 ─ Received four NACo awards for COLLAB residency, online summer reading program, PPE production and serving seniors through a pandemic.

2019 ─ Received Excellence in Library Programming Award from the American Library Association (ALA).

2019 ─ Received three NACo awards for expanding legal resources, community dinners and providing homeless drop-in information program.

2018 ─ Director Chang Liu received ALA’s Ernest A. DiMattia Award for Innovation and Service to Community and Profession.

2018 ─ Susan VanEpps, Division Manager of Programming & Community Engagement, named Outstanding Employee of the Year by the Virginia Public Library Directors Association.

2018 ─ Received NACo award for adult programming through community partnerships.

2017 ─ Sterling Library received American Institute of Architects Design Award and is featured in the American Libraries Magazine for Library Design Showcase.

2017 ─ Mark Miller, Board of Trustees Chair, received the ALA’s Trustee Citation.

2017 ─ Patricia Pacheco named Paralibrarian of the Year by Library Journal.

2016 ─ LBOT Chair Mark Miller, recipient of Virginia Library Association Trustee Award.

2016 ─ Received NACo award for Journeys of my life / Viajes de mi Vida program.

2015 ─ Received NACo award for You Belong @ Your Library program.

2015 ─ Received VACo award for After Hours Teen Center program.

2014 ─ Received VACo award for You Belong @ Your Library program.