Rock Falls, IL

View of Rock Falls, IL
Population
8,521
U.S. Census Population Estimates Program · 2025
Elevation
644 ft
USGS GNIS community points and 3DEP elevation · GNIS 2026-07-06; USGS 3DEP sampled 2026-07-23
Median Home Value
$83,900
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$754/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$49,600
U.S. Census American Community Survey 5-Year · 2024
General Quality
Overall rating out of 100

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About Rock Falls

Rock Falls sits right along the south bank of the Rock River in northern Illinois, directly across from its twin city, Sterling. Home to around 9,000 people, this welcoming Sauk Valley community offers quiet neighborhood living with plenty of waterfront charm. Outdoor recreation is a big part of daily life here, whether you are walking or biking along the scenic Hennepin Canal State Trail, launching a boat onto the river, or spending a sunny afternoon at Centennial Park.

Daily life in Rock Falls is relaxed and centered around family and community. Local schools, parks, and community groups keep the calendar full with seasonal festivals, youth sports, weekend fishing, and disc golf. Crossing the river into Sterling opens up extra shopping, dining, and healthcare options, while nearby regional hubs like Dixon, Rockford, and the Quad Cities are well within reach for work, higher education, and weekend trips.

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