Illinois Legislative Datasets
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Weekly snapshots of session data are created each Sunday morning with updated information on an as-needed basis. Provided in simple comma-separated values files for general bill data, or the most complete form packaged as LegiScan API JSON payloads. Current year data is below, for a complete historical list of session files select an individual state above.
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Legislative Datasets by LegiScan LLC is licensed under CC BY 4.0
| State | Year | Session | Modified | Exported | API JSON | CSV Basic |
|---|---|---|---|---|---|---|
| Illinois | 2025-2026 | 104th General Assembly | 2025-02-28 | 2025-03-02 | JSON 9.9 MB | CSV 1.5 MB |
| Illinois | 2023-2024 | 103rd General Assembly | 2024-12-23 | 2024-12-29 | JSON 24.0 MB | CSV 4.5 MB |
| Illinois | 2021-2022 | 102nd General Assembly | 2022-12-22 | 2022-12-25 | JSON 24.0 MB | CSV 4.5 MB |
| Illinois | 2019-2020 | 101st General Assembly | 2021-01-14 | 2021-12-31 | JSON 22.0 MB | CSV 3.7 MB |
| Illinois | 2017-2018 | 100th General Assembly | 2019-02-07 | 2021-12-31 | JSON 24.9 MB | CSV 4.4 MB |
| Illinois | 2015-2016 | 99th General Assembly | 2017-01-13 | 2021-12-31 | JSON 24.6 MB | CSV 4.0 MB |
| Illinois | 2013-2014 | 98th General Assembly | 2015-01-13 | 2021-12-31 | JSON 23.4 MB | CSV 3.8 MB |
| Illinois | 2011-2012 | 97th General Assembly | 2013-03-04 | 2021-12-31 | JSON 22.9 MB | CSV 3.9 MB |
| Illinois | 2009-2010 | 96th General Assembly | 2011-01-27 | 2021-12-31 | JSON 24.6 MB | CSV 4.0 MB |
