Monday – Thursday: 10 AM – 8 PM
Friday – Saturday: 10 AM – 5 PM
Sunday (September - May): 1 PM – 5 PM
Sunday (June - August): CLOSED
LIBRARY CLOSED
12:00 AM - 12:00 AMLittle Free Essentials

Free for all!
The Portsmouth Public Library is proud to offer Little Free Essentials in the Library beginning Summer 2025. The same way our Little Free Libraries encourage you to take a free book, our Little Free Essentials is a space for you to grab necessary care items with no charge!
Alzheimer's and Dementia Caregiver Support Group
7:00 PM - 8:00 PMAlzheimer's and Dementia Caregiver Support Group
7:00 PM - 8:00 PMForensic Science Roadshow 10/8 @ 6pm
Venture into the world of crime scene investigation in this interactive program by Paul Zambella on Oct. 8th at 6pm.
AI & Cybersecurity, 10/1 @ 5:30 pm
On Wednesday, October 1, 2025 - 5:30pm–7:00pm join us for a presentation from The ATOM Group, LLC.
Library Closed November 11th, 2025
The library will be closed on Tuesday, November 11th, 2025.
We will resume normal hours on Wednesday, November 12th.
View our calendar to see additional holiday closings.
Special Collection Highlights
Special Collections
Local History & Genealogy
The Special Collections room at Portsmouth Public Library includes information and resources pertaining to local history and genealogy topics for Portsmouth, the Seacoast, and some surrounding cities and towns.
While the collection development efforts have focused on acquiring materials relating primarily to the city of Portsmouth, information about other towns in Rockingham County, including town histories for Strafford County, NH, York County in Maine, and a bit of Essex County in Massachusetts, are also available.