Dahlgren, IL

Population
495
U.S. Census Population Estimates Program · 2025
Elevation
515 ft
USGS GNIS community points and 3DEP elevation · GNIS 2026-07-06; USGS 3DEP sampled 2026-07-23
Median Home Value
$80,800
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$557/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$44,861
U.S. Census American Community Survey 5-Year · 2024
General Quality
Overall rating out of 100

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About Dahlgren

Dahlgren is a quiet village in Hamilton County, Illinois, founded in the 1870s as a stop along the local railway. Named after Civil War naval officer John Dahlgren, the community grew around the tracks and has kept its relaxed, rural character through the generations. It offers a classic slice of Midwestern country living, where open farm fields sit right outside the residential streets and the pace of daily life is unhurried.

Sitting along Illinois Route 142, Dahlgren provides a peaceful home base with straightforward access to larger nearby hubs. Mount Vernon is about 15 miles to the northwest for major shopping, dining, and healthcare, while the county seat of McLeansboro lies 11 miles to the southeast. In town, historic touches like the old nineteenth-century train depot blend with practical essentials like the local library and neighborhood churches, making it an appealing choice for anyone looking for simple small-town living within easy reach of regional conveniences.

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