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Grundy County

Established
February 17, 1841 (Laws, 1841, p. 74)

Origin of the name of the county
Named for Felix Grundy, a lawyer and politician, United States Senator from Tennessee, and Attorney General of the United States.

Present area, or parts of it, formerly included in
1831–1841 — LaSalle
Southeastern Part
1826–1831 — Vermilion
1823–1826 — Edgar
1819–1823 — Clark
Southwestern Part
1827–1831 — Tazewell
1821–1826 — Fayette
North of Illinois River
1825–1831 — Putnam
1823–1825 — Fulton
1821–1823 — Pike
1819–1823 — Clark
1816–1819 — Crawford
1815–1816 — Edwards
1812–1815 — Madison
1801–1812 — St. Clair — 1790–1801 — Knox, Northwest Territory

County Seats
1842–   — Morris – At a site previously called Grundytown, then Grundyville, and finally Morris.

History of county governing board
1841–1850 — County Commissioners’ Court
1850–   — County Board of Supervisors

Township Government
Adopted — November 6, 1849

Township Names
Aux Sable
Braceville — Name changed from Addison on June 13, 1850.
Erienna — Name changed from Fairview on June 13, 1850.
Felix — Formed from Wauponsee and Aux Sable in November, 1854.
Garfield — Formed from Greenfield on March 10, 1903.
Goodfarm — Name changed from Dover on June 13, 1850.
Goose Lake — Formed from Felix on September 15, 1897.
Greenfield
Highland
Maine — Formed from Braceville in March 18, 1898.
Mazon
Morris
Nettle Creek
Norman
Saratoga
Vienna
Wauponsee

Township Map

Pertinent Databases
Federal Township Plats of Illinois
Illinois Public Domain Land Tract Sales Database
Illinois Statewide Death Index, 1916–1950
Illinois Statewide Marriage Index
Local Governmental Records Database
Name Index to Illinois Local Governments