What to know about ZIP 61331
ZIP code 61331 covers Lee Center, IL in Lee County.
It sits in telephone area codes 779, 815; U.S. House district IL-16; the ROCKFORD media market.
Lee Center CDP, IL
ZIP Code 61331 — Lee Center CDP, IL Demographics & Data
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Low Snow Area
Map, Quick Facts & Location
Quick Facts
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At a glance
Overview of ZIP Code 61331
Climate risk and migration signals
FEMA’s National Risk Index rates natural-hazard risk for Lee Center CDP, IL as Relatively Low (composite score 54.4), which is near the middle of the national distribution. The strongest component scores on US5 are flood (62.5) and hurricane (15.7). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.
Climate normals for Lee Center CDP, IL show little to no average snow.
Nearby (from this ZIP)
Airport RFD (32.3 miles (52.0 km)) · Sauk Valley Community College (17.1 miles (27.6 km)) · Pullman National Historical Park (86.1 miles (138.6 km)) · VA: Sterling VA Outpatient Clinic (22.0 miles (35.4 km))
Full lists and map pins are in the Infrastructure section below.