- Idalou (Population: 2,157)
- Indian Hills (Population: 2,036)
- Inez (Population: 1,787)
- Ingleside (Population: 9,388)
- Ingram (Population: 1,740)
- Iowa Park (Population: 6,431)
- Iraan (Population: 1,238)
- Irving (Population: 191,615)
- Italy (Population: 1,993)
- Itasca (Population: 1,503)
