Wikipedia doesn’t have a history of Brooklyn Township yet. The photos, dates and memories neighbors add here are how it gets written.
Brooklyn Township is one of twenty-two townships in Lee County, Illinois, USA. As of the 2020 census, its population was 691 and it contained 336 housing units. In September 1858, Reynolds Township was formed from part of Brooklyn Township.
Between the 2010 and 2020 censuses its population fell from 793 to 691 (-13%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Brooklyn Township, 1841 to 1952
Woven from the archive, old maps, post office records, the National Register and the people born here.
Every edition of the U.S. Geological Survey’s map of Brooklyn Township. Tap a year, or press play to watch the town change.
1952Mendota sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Brooklyn Township.
Famous people
Famous people close to Brooklyn Township
Nobody well known was born in Brooklyn Township itself, so here are the best known from just nearby.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From U.S. Geological Survey historical maps, the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.