Mount Carroll, IL

View of Mount Carroll, IL
Image credit: PeteBobb / CC BY-SA 3.0
Population
1,432
U.S. Census Population Estimates Program · 2025
Elevation
806 ft
Median Home Value
$86,600
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$785/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$58,500
U.S. Census American Community Survey 5-Year · 2024

Explore

Mount Carroll in context.

About Mount Carroll

Mount Carroll grew as a mill town around 1841 and became Carroll County’s seat when the county government moved from Savanna in 1843. That early combination of industry and administration still shapes the city. Downtown, the courthouse, library, and older business blocks sit within the 118-acre Mount Carroll Historic District, which also includes older residential streets and the former Shimer College campus. The Campbell Center for Historic Preservation Studies now uses that southern campus, keeping preservation work connected to the buildings that made Mount Carroll distinctive.

Downtown HotelMG 8147

Today the city serves as a small county center surrounded by farms and creek-cut Illinois countryside. County offices, schools, the library, local shops, and community organizations bring people in from the surrounding townships, while Timber Lake provides a nearby change of pace. U.S. 52 connects Mount Carroll with Lanark to the east and Savanna toward the Mississippi, giving the city a regional role without turning it into a highway town. A walk through the older blocks reveals how much of the place’s character comes from continuity: a courthouse still handling county business, a library still lending books, and historic buildings reused for present-day work.

Top Rating Signals

Highest current ratings for this town.

Loading town details...