| State | Type | Cities | Year | Comments |
|---|---|---|---|---|
| Arizona | Free | 16 | 2016 | Added free to original game |
| Arkansas | DLC | 10 | 2024 | One additional city expands into Texas |
| British Columbia | DLC | ?? | TBA | First official Canadian Province |
| California | Free | 20 | 2016 | Reworked several times as game evolves |
| Colorado | DLC | 13 | 2020 | |
| Idaho | DLC | 11 | 2020 | |
| Illinois | DLC | 11 | 2026 | |
| Iowa | DLC | 12 | 2025 | |
| Kansas | DLC | 14 | 2023 | |
| Louisiana | DLC | 11 | 2025 | |
| Missouri | DLC | 11 | 2025 | One addition city expands into Kansas |
| Montana | DLC | 15 | 2022 | |
| Nebraska | DLC | 12 | 2024 | |
| Nevada | Free | 11 | 2016 | Reworked several times with updates |
| New Mexico | DLC | 14 | 2017 | |
| Oklahoma | DLC | 10 | 2023 | |
| Oregon | DLC | 14 | 2018 | |
| Texas | DLC | 30 | 2022 | |
| Utah | DLC | 10 | 2019 | |
| Washington | DLC | 16 | 2019 | |
| Wyoming | DLC | 11 | 2021 |