Barrios de California I
- Indian Canyons (3)
- Industrial Area West (3)
- Ingleside (5)
- Ingleside Heights (3)
- Inner Parkside (5)
- Inner Sunset (11)
- Interland/Univ Research Park (2)
- Iron Triangle (4)
- Irvine Business Complex (54)
- Irvine Spectrum (35)
- Irvington (10)
- Isla Vista (7)
- Ivey Ranch-Rancho Del Oro (19)
- Iveywood (1)
- Ivy Drive Area (1)
- Ivy Hill (2)