Jacksonville Sister Cities Association (JSCA) has eight Sister Cities:

• Bahia Blanca, Argentina
• Curitiba, Brazil
• Changwon City, South Korea
• Murmansk, Russia
• Nantes, France
• Nelson Mandela Bay Municipality, South Africa
• San Juan, Puerto Rico
• Yingkou, China

JSCA also has three Friendship Cities in China:
Ningbo, Shaoxing and Suzhou

• Ningbo, China
• Shaoxing, China
• Suzhou, China