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Rochester, IL

View of Rochester, IL
Image credit: Kbane2 / Public domain
Population
4,093
U.S. Census Population Estimates Program · 2025
Elevation
560 ft
Median Home Value
$238,900
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$1,288/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$117,118
U.S. Census American Community Survey 5-Year · 2024

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Rochester in context.

OverallBest places in IllinoisPopulation rankingHighest population places in IllinoisNearest larger communitySpringfield, Illinois7.3 miles away · 112,989 residents.

About Rochester

Rochester is a village and suburb in Sangamon County, Illinois, situated just outside Springfield. Settled in 1819 along the South Fork of the Sangamon River and hosting the popular annual Sparks in the Park Independence Day festival, the community of approximately 3,766 is served by the Rochester Community Unit School District Three A for public education.

Top Rating Signals

Highest current ratings for this town.

Lower County Wildfire Hazard Potential ClassA+100.0ratingLower Projected Late-Century County-Area Exposure to Sea-Level RiseA+100.0ratingRegional Two-Party Electoral BalanceA+97.7rating

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