Townapedia
Lacon 1091
Lacon 1091 · ProfDEH, CC BY-SA 3.0
Lacon-street-scene-153
Lacon-street-scene-153 · ProfDEH ( talk ), CC BY-SA 3.0
Lacon Bridge-1
Lacon Bridge-1 · ProfDEH, Public domain
Sparland octagon house 1111
Sparland octagon house 1111 · ProfDEH, CC BY-SA 3.0

Lacon, Illinois

Lacon is a city of 1,916 people in Marshall County, Illinois.

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Population1,916 +8.9% since 2019
Elevation486 ft 148 m
Land area1.6 sq mi
ZIP code61540
Nearest airportRinkenberger Airport (BDF) 18 mi

Why visit Lacon

Townapedia lists 1 museum or landmark, 3 parks and trails, 4 places to eat and 1 attraction in and around town.

Highlights include Lacon Bridge and Robert Waugh House.

July is the warmest month, with average highs of 87°F; January lows average 18°F, and about 25 inches of snow fall in a normal year.

About Lacon

Lacon is a city in and the county seat of Marshall County, Illinois, United States. It is part of the Peoria metropolitan area. The population was 1,878 at the 2020 census, down from 1,937 in 2010.

From the Wikipedia article Lacon, Illinois (this version), under CC BY-SA 4.0.

Things to do1

Lacon Bridge

Bridge · 0.6 mi

Bridge in United States of America

Open in Google Maps · Wikipedia

Museums and landmarks1

Robert Waugh House

Monument and historic site · National Register of Historic Places · 1.8 mi

Brick, octagonal house in Sparland, Illinois

Open in Google Maps · Wikipedia

Parks, trails and playgrounds3

Johnson's Grove Park

Park · 0.4 mi

Open in Google Maps

Lacon Marina

Marina and boat launch · 0.5 mi

Open in Google Maps

Lacon Park

Park

Open in Google Maps

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Restaurants and cafes4

Club LaCon

Restaurant · 1.0 mi

Open in Google Maps

Kenyan's

Restaurant · 0.5 mi

Open in Google Maps

Victoria's Country Diner

Restaurant

Open in Google Maps

Subway

Fast food · Sandwich · 0.6 mi

1405 5th Street, Lacon

08:00-21:00

Open in Google Maps · +1 309-246-7827

History

Lacon was named after Laconia, a region of Greece. Lacon was established in 1831 and is the oldest town in Marshall, Putnam, Bureau, and Stark Counties. On August 6, 1831, it was laid out as the town of Columbia. The town grew in population after the Black Hawk War.

A Temperance Society was formed July 28, 1836. A Presbyterian Church organized in 1837. A post-office was established in 1837. A newspaper called The Lacon Herald published in December 1837. The name changed from Columbia to Lacon on January 19, 1837. The town expanded with a purchase of an addition on July 3, 1837.

The Marshall County Courthouse was built in 1840 and a county jail in 1844. On June 27, 1842, President Martin Van Buren paid a brief visit to the town.

The community of Lacon, Alabama, now a ghost town, was named after Lacon. All that remains of Lacon, Alabama is a flea market.

From the History section of Lacon, Illinois on Wikipedia, under CC BY-SA 4.0.

Churches and places of worship5

Shopping1

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Gas and EV charging1

Schools, colleges and libraries4

Healthcare1

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Map of Lacon

21 places. The map loads OpenStreetMap tiles when you open it.

Climate by month

20°40°60°80°January: 2.1 in of rainFebruary: 2.1 in of rainMarch: 2.6 in of rainApril: 4.0 in of rainMay: 4.8 in of rainJune: 4.3 in of rainJuly: 4.0 in of rainAugust: 3.3 in of rainSeptember: 3.3 in of rainOctober: 3.2 in of rainNovember: 2.6 in of rainDecember: 2.2 in of rainJanuary: 34°FFebruary: 38°FMarch: 51°FApril: 64°FMay: 75°FJune: 84°FJuly: 87°FAugust: 86°FSeptember: 80°FOctober: 67°FNovember: 51°FDecember: 38°FJanuary: 18°FFebruary: 22°FMarch: 31°FApril: 41°FMay: 52°FJune: 61°FJuly: 65°FAugust: 63°FSeptember: 55°FOctober: 44°FNovember: 33°FDecember: 23°FJFMAMJJASOND
Average high Average low Rain
Monthly table
MonthHighLowRainSnow
Jan34°F18°F2.1 in8.1 in
Feb38°F22°F2.1 in6.2 in
Mar51°F31°F2.6 in3.2 in
Apr64°F41°F4.0 in0.7 in
May75°F52°F4.8 in0.0 in
Jun84°F61°F4.3 in0.0 in
Jul87°F65°F4.0 in0.0 in
Aug86°F63°F3.3 in0.0 in
Sep80°F55°F3.3 in0.0 in
Oct67°F44°F3.2 in0.1 in
Nov51°F33°F2.6 in1.1 in
Dec38°F23°F2.2 in5.2 in

U.S. Climate Normals 1991-2020 for Lacon (1 mi away), NOAA NCEI.

People and cost of living

$63,162median household income
$121,900median home value
$817median monthly rent
38.8median age
9.7%of adults have a bachelor's degree or higher
71.7%of homes are owner-occupied
33.0 minaverage commute
Age of residents
Under 1823%18 to 3422%35 to 6434%65 and over21%

American Community Survey 5-year estimates, 2020-2024, U.S. Census Bureau. Estimates have margins of error, larger for small towns.

Disaster history

Marshall County has had 7 federal disaster declarations since 2000, most often for snowstorms.

  • 2020-03-26: Covid-19 Pandemic (Biological)
  • 2020-03-13: Covid-19 (Biological)
  • 2013-05-10: Severe Storms, Straight-Line Winds, And Flooding (Flood)
  • 2011-03-17: Severe Winter Storm And Snowstorm (Snowstorm)
  • 2006-12-29: Snow (Snowstorm)
  • 2005-09-07: Hurricane Katrina Evacuation (Hurricane)

OpenFEMA disaster declarations summaries.

Getting there and nearby towns

Rinkenberger Airport (BDF) is the nearest airport with scheduled flights listed in OpenStreetMap, 18 miles away.

Drive times are estimates from straight-line distance, not routes.

Reviews, tips and questions

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Sources and licences

Photo credits

Page built October 30, 2026. Spotted a mistake? Tell us or suggest a place.