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2nd Illinois General Assembly | |
|---|---|
| Type | |
| Type | |
| Houses | Senate House of Representatives |
| Leadership | |
President of the Senate | Pierre Menard, Independent |
Speaker of the House of Representatives | John McLean, Independent |
| Seats | 14 Senators 28 Representatives |
| Meeting place | |
| Vandalia, Illinois | |
The 2nd Illinois General Assembly, consisting of the Illinois Senate and the Illinois House of Representatives, met from December 4, 1820, to February 15, 1821, during the second two years of Shadrach Bond's governorship, at The Vandalia State House. The apportionment of seats in the House of Representatives was based on the provisions of the First Illinois Constitution. Political parties were not established in the State at the time.
It was preceded by the 1st Illinois General Assembly. It was succeeded by the 3rd Illinois General Assembly.
This list is arranged by chamber, then by county. Senators and Representatives were both allotted to counties roughly by population and elected at-large within their districts. Two counties shared one senator. Four new counties were added in 1819: Alexander, Clark, Jefferson, and Wayne.

| Seats in County | Counties represented | Image | Representative | Remarks |
|---|---|---|---|---|
| 1 | Alexander | William M. Alexander | ||
| 1 | Bond | William M. Crisp | ||
| 2 | Crawford | Abraham Cairns | ||
| Wickliffe Kitchell | ||||
| 1 | Edwards | Moses Michaels | ||
| 1 | Franklin | Thomas M. Dorris | ||
| 3 | Gallatin | Henry Eddy | ||
| Samuel McClintock | ||||
| John McLean | ||||
| 1 | Jackson | Conrad Will | ||
| 1 | Johnson | William McFatridge | ||
| 3 | Madison | Joseph Borough | ||
| William Otwell | ||||
| Nathaniel Buckmaster | ||||
| 1 | Monroe | Enoch Moore | ||
| 1 | Pope | Samuel Alexander | ousted, replaced by Samuel O'Melveny of Union County re-elected to the same seat in the 3rd Illinois General Assembly | |
| Edward Robison | ||||
| 3 | St. Clair | David Blackwell | ||
| Charles R. Matheny | ||||
| Risdon Moore | ||||
| 2 | Randolph | Thomas Mather | ||
| Raphael Widen | ||||
| 1 | Union | Samuel O'Melveny | completed term of Samuel Alexander of Pope County | |
| Richard M. Young | ||||
| 1 | Washington | Charles Slade | ||
| 1 | Wayne | Alexander Campbell | ||
| 3 | White | George R. Logan | ||
| William B. McLean | ||||
| Alexander Phillips |