Upper Peoria Lake

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Upper Peoria Lake
View of Upper Peoria Lake from the Peoria Heights water tower observation deck
Upper Peoria Lake Show map of Illinois Upper Peoria Lake Show map of the United States
Location	Peoria / Woodford / Tazewell counties, Illinois, US
Coordinates	40°48′24″N 89°33′4″W / 40.80667°N 89.55111°W / 40.80667; -89.55111
Primary inflows	Illinois River
Primary outflows	Illinois River
Basin countries	United States
Surface area	6,256.7 hectares (15,461 acres)

Upper Peoria Lake is a section of the Illinois River primarily between Peoria County and Woodford County, Illinois, United States. The lake runs from South Rome to Peoria Heights, with Spring Bay and the Detweiller Marina area of Peoria near the middle. Just north of Peoria Heights, it empties through a narrow part of the Illinois River into the smaller Peoria Lake, sometimes called Lower Peoria Lake, at approximately river mile 166.5.^[1]