2018 | 10 Episodes

Season 1 of 9-1-1 premiered on January 3, 2018.

2018 | 18 Episodes

Season 2 of 9-1-1 premiered on September 23, 2018.

2019 | 18 Episodes

Season 3 of 9-1-1 premiered on September 23, 2019.

2021 | 14 Episodes

Season 4 of 9-1-1 premiered on January 18, 2021.

2021 | 18 Episodes

Season 5 of 9-1-1 premiered on September 20, 2021.

2022 | 18 Episodes

Season 6 of 9-1-1 premiered on September 19, 2022.

2024 | 10 Episodes

Season 7 of 9-1-1 premiered on March 14, 2024.

2024 | 18 Episodes

Season 8 of 9-1-1 premiered on September 26, 2024.

2025 | 18 Episodes

Season 9 of 9-1-1 premiered on October 9, 2025.