Sexually Transmitted Disease & HIV Testing & Counseling Clinics 

Hamilton Township Health Department
2100 Greenwood Avenue
Hamilton, NJ
Phone: 609-890-3647 
Walk-ins are available!
Hours: Tuesday from 9am-12pm and 3pm-5:30pm. 
For this clinic, please bring a photo ID or proof of address with you. You must live in one of the following towns.

Hopewell Township, Hopewell Borough, Pennington Borough, Hamilton, Lawrence, East Windsor, Ewing, Robbinsville, Hightstown, Princeton, or West Windsor. Hopewell Township, Hopewell Borough, Pennington Borough.
*Students residing on the campuses of Rider University or TCNJ will receive services free of charge with college ID. 
When visiting, face masks are required! See attached for more details in 
English and Spanish 

Trenton Health Department

218 North Broad Street
Trenton, NJ 08618
Phone: 609-989-3242
Monday, Wednesday, and Friday
8:30 until 11 a.m. and 1:15 to 3 p.m.
The clinic provides confidential screenings for sexually transmitted diseases. You'll only need to bring documents of your residency within Mercer County to access these services that are no charge. Quick and prompt is delivered by the professional staff. Referrals provided. Confidential HIV counseling and testing is also provided in that results are provided within 15 minutes using the latest technology. Appointments are preferred but Walk-ins are accepted.  
Trenton Health Department also provides (Tuberculosis) TB testing and case management services, referrals are required. Call 609-989-3242 for times and appointments.

Henry J. Austin Medical Infection Disease Center

601 Hamilton Avenue
Trenton, NJ
Phone: 609-278-5900
Provides HIV testing for county residents. Call 609-599-5263 for times and appointments.

Additional Resources 

Hyacinth AIDS Foundation 

Local syringe access program or local harm reduction center. Call 609-396-8322. 

New Jersey AIDS/HIV/STD Hotline

The New Jersey AIDS/HIV/STD Hotline is a go-to resource for NJ residents looking for testing, prevention and treatment information and/or services for HIV and other sexually transmitted infections (STIs). The hotline is available 24/7. Services are free and confidential.

New Jersey Department of Health STD/HIV Resources 

For more information on additional testing locations visit the NJDOH page.

Financial Assistance 

For financial assistance for Mercer County residents living with HIV please visit