Bonita-Sunnyside Library
🏢 San Diego County Library · Bonita, California
Bonita-Sunnyside Library
The Bonita-Sunnyside Library serves the semi-rural Bonita and Sunnyside communities in San Diego County's South Bay, just east of Chula Vista along Bonita Road. As one of the branches of the San Diego County Library, it lends books and digital media on a free county card and stays open until 7 p.m. on Tuesdays.
🕑 Library Hours
| Monday | 10am–6pm |
| Tuesday | 12pm–7pm |
| Wednesday | 10am–6pm |
| Thursday | 10am–6pm |
| Friday | 10am–5pm |
| Saturday | 10am–5pm |
| Sunday | Closed |
Hours may vary on holidays; check the library site before visiting.
📍 Location, Contact & Directions
Address: 4375 BONITA RD, Bonita Sunnyside, CA 91902
Phone: (619) 475-4642
Website: sdcl.org
Plus Code: 8544MX68+75 (Bonita Sunnyside, CA)
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📖 About Bonita-Sunnyside Library
The Bonita-Sunnyside Library is a branch of the San Diego County Library (SDCL), the countywide system that serves the unincorporated areas and smaller cities around San Diego. It is separate from the San Diego Public Library, which is the City of San Diego's own system. Sitting at 4375 Bonita Road in the horse-friendly Sweetwater Valley community of Bonita, the branch anchors a corner of the South Bay between Chula Vista and the Sweetwater Reservoir. A single free SDCL card borrowed here also unlocks the system's full digital collection and reciprocal borrowing across all county branches. During San Diego County heat events the branch opens as a designated Cool Zone cooling center, and a Friends of the Library used bookstore on site helps fund programming.
⭐ What makes this library special
- Branch of the San Diego County Library serving Bonita and Sunnyside in the South Bay's Sweetwater Valley
- Open until 7 p.m. on Tuesday for after-work and after-school visits
- Free Wi-Fi, public computers and a MakerBot 3D printer for hands-on making
- Bookable community room and a Friends of the Library used bookstore on site
- Designated County Cool Zone cooling center during extreme-heat days, plus battery recycling drop-off
📱 Digital Resources — Free with Your Library Card
A free San Diego County Library card unlocks the system's digital collection from home:
📚 Services
- Free San Diego County Library card and reciprocal borrowing across all county branches
- Public computers, printing, copying and free Wi-Fi
- MakerBot 3D printer
- Bookable community room for meetings and programs
- Cool Zone cooling center during extreme-heat events
- Downloadable eBooks, audiobooks and streaming media
🎸 Programs
- Baby Bounce and children's storytimes
- Little Crafters craft sessions and After School Art Explorers for youth
- EZ Science for Kids
- Chess club
- Summer reading
📍 Nearby Libraries in San Diego County
Distances are approximate straight-line miles from this library.
All libraries in Bonita Sunnyside · Browse all California libraries →
❓ Frequently Asked Questions
Is the Bonita-Sunnyside Library part of the San Diego Public Library?
No. Bonita-Sunnyside is a branch of the San Diego County Library (SDCL), the countywide system that serves Bonita and the surrounding South Bay. The San Diego Public Library is a separate system run by the City of San Diego. A free SDCL card works at Bonita-Sunnyside and every other county branch.
What is the Cool Zone at the Bonita-Sunnyside Library?
The branch is a designated County Cool Zone, meaning it opens as a free air-conditioned cooling center where anyone can escape the heat during extreme-temperature days. It's part of a San Diego County network of libraries and community buildings that operate as Cool Zones in summer.
Which days is the Bonita-Sunnyside Library open latest?
Tuesday is the late day, with doors open 12 p.m. to 7 p.m. Monday, Wednesday and Thursday run 10 a.m. to 6 p.m., Friday and Saturday 10 a.m. to 5 p.m., and the branch is closed on Sunday.
Can I use the 3D printer and meeting room at Bonita-Sunnyside?
Yes. The branch has a MakerBot 3D printer available to the community and a bookable community room for meetings and programs. Ask staff for current sign-up details and any materials fees for printing.
🔨 This library has a makerspace / 3D printing. See how library makerspaces and 3D printing work and find other libraries with a makerspace makerspaces by state.
🖨 This library offers printing, copying & fax. See how library printing, copying, scanning and fax services work — costs and mobile printing — and find other libraries that offer them printing & fax by state.
📅 This library has meeting & community rooms. See how library meeting rooms work — booking, policies and fees — and find other libraries with meeting or community rooms meeting rooms by state.
✓ Hours & details last verified from official sources in October 2026.
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