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Nason, IL

Population
198
U.S. Census Population Estimates Program · 2025
Elevation
433 ft
Median Home Value
$73,600
U.S. Census American Community Survey 5-Year · 2024
Median Income
$50,052
U.S. Census American Community Survey 5-Year · 2024

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Nason in context.

OverallBest places in IllinoisPopulation rankingHighest population places in IllinoisNearest larger communityMount Vernon, Illinois9.9 miles away · 14,187 residents.

About Nason

Nason is a city in Jefferson County, Illinois, United States. The 2020 census counted 199 residents. Nason is part of the Mount Vernon Micropolitan Statistical Area. Nason is located in southern Jefferson County 12 miles south of Mount Vernon, the county seat. A newcomer can read Nason through the overlap of its older landmarks, surrounding geography, and current places. For a newcomer, Nason comes into focus through those concrete links among its past, landscape, and current routines. Nason sits between the two northern arms of Rend Lake, a reservoir on the Big Muddy River.

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Highest current ratings for this town.

Lower County Wildfire Hazard Potential ClassA+100.0ratingLower Projected Late-Century County-Area Exposure to Sea-Level RiseA+100.0ratingLow PopulationA+100.0rating

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