Townapedia

Trenton, Illinois

Trenton is a city of 2,664 people in Clinton County, Illinois, founded in 1855.

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Population2,664 +1.9% since 2019
Elevation482 ft 147 m
Founded1855
Land area1.9 sq mi
ZIP code62293
Nearest airportMidAmerica St. Louis Airport (BLV) 9 mi

Why visit Trenton

Townapedia lists 5 parks and trails and 7 places to eat in and around town.

July is the warmest month, with average highs of 90°F; January lows average 24°F.

About Trenton

Trenton is a city in Clinton County, Illinois, United States. The population was 2,690 at the 2020 census. There is, however, a small portion of St. Clair County, Illinois inside Trenton.

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

Parks, trails and playgrounds5

Nuthouse Park

Park

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Trenton Community Park

Park · 0.7 mi

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Trenton Nature Park

Park · 0.5 mi

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St. Mary's Playground

Park · 0.4 mi

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Trenton Tumbleweeds Garden

Park · 0.7 mi

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Restaurants and cafes7

Dairy King

Diner · American

320 West Broadway, Trenton

Open in Google Maps · +1-618-224-2222

Hanks Bowl Restaurant

Restaurant · Burger, American

29 West Illinois Street, Trenton

Open in Google Maps · +1-618-224-9355

Kain Tayo

Restaurant · Filipino

2 West Broadway, Trenton

Open in Google Maps · +1-618-224-6102

Mexico on Main

Restaurant · Mexican

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Pizza Market

Restaurant · Pizza

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Jailhouse Rock

Bar and pub

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Trenton House

Restaurant

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Churches and places of worship5

Saint Mary Catholic Church

Church · Roman Catholic · 0.4 mi

218 West Kentucky Street, Trenton

Open in Google Maps · +1 618-224-9335

Grace Community Baptist Church

Church · Baptist

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New Life Christian Church

Church · Christian

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Saint John United Church of Christ

Church · United Church Of Christ

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Westgate Baptist Church

Church · Southern Baptist · 0.7 mi

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Shopping3

IGA

Grocery · 0.6 mi

491 East Broadway, Trenton

Mo-Su 07:00-21:00

Open in Google Maps · +1-618-224-7236

Trenton Processing

Grocery

120 West Broadway, Trenton

Mo-Sa 08:00-18:00

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Mannhard's Hardware Store

Hardware store

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History

The town was laid out by A. W. Casad in 1836 from Trenton, New Jersey, who gave his new town the name Trenton after the place he was from. The planned town was supposed to be built just north of the Ohio and Mississippi Railroad in an area which is now called “Old Trenton”. However, the old town was abandoned as no one ever built in the lots they bought. In response to his failed venture, Mr. Casad returned to his hometown of Trenton, New Jersey. Mr. William Lewis, A. W. Casad's brother in law however didn't go back to New Jersey. Instead, he opted to stay and in 1818 built a farmhouse where the current town lies today.

In 1853 Mr. Buckman built a railroad depot and even managed to get a post office to be established. However, his business partner Mr. Walker abandoned him, which made Buckman move out of the area. Buckman would eventually resettle in Iowa.

On 14 May 1855, Alva Lewis refounded the town, and this time it stayed. Several more major additions were added to the town throughout the mid-1800s by multiple other people and companies. On 12 March 1856 and 11 June 1860 by William Lewis, 22 May 1856 and 2 July 1866 by Joseph Hanke, 12 June 1856 by Sanger Ramp & Co, and finally by Mathias Leonard and Sanger Kamp on 26 May 1868.

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

Gas and EV charging3

Schools, colleges and libraries10

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Healthcare1

Map of Trenton

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

Climate by month

20°40°60°80°January: 2.6 in of rainFebruary: 2.2 in of rainMarch: 3.4 in of rainApril: 4.9 in of rainMay: 5.0 in of rainJune: 4.6 in of rainJuly: 4.0 in of rainAugust: 3.9 in of rainSeptember: 3.4 in of rainOctober: 3.1 in of rainNovember: 3.6 in of rainDecember: 2.6 in of rainJanuary: 43°FFebruary: 49°FMarch: 59°FApril: 71°FMay: 79°FJune: 87°FJuly: 90°FAugust: 89°FSeptember: 83°FOctober: 73°FNovember: 58°FDecember: 46°FJanuary: 24°FFebruary: 28°FMarch: 36°FApril: 46°FMay: 56°FJune: 64°FJuly: 68°FAugust: 65°FSeptember: 57°FOctober: 47°FNovember: 37°FDecember: 28°FJFMAMJJASOND
Average high Average low Rain
Monthly table
MonthHighLowRainSnow
Jan43°F24°F2.6 in3.4 in
Feb49°F28°F2.2 in3.3 in
Mar59°F36°F3.4 in1.0 in
Apr71°F46°F4.9 in0.0 in
May79°F56°F5.0 in0.0 in
Jun87°F64°F4.6 in0.0 in
Jul90°F68°F4.0 in0.0 in
Aug89°F65°F3.9 in0.0 in
Sep83°F57°F3.4 in0.0 in
Oct73°F47°F3.1 in0.0 in
Nov58°F37°F3.6 in0.6 in
Dec46°F28°F2.6 in2.9 in

U.S. Climate Normals 1991-2020 for Belleville Siu Rsch (11 mi away), NOAA NCEI.

People and cost of living

$80,795median household income
$178,200median home value
$857median monthly rent
38.0median age
30.7%of adults have a bachelor's degree or higher
70.8%of homes are owner-occupied
25.2 minaverage commute
Age of residents
Under 1822%18 to 3423%35 to 6435%65 and over20%

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

Disaster history

Clinton County has had 4 federal disaster declarations since 2000, most often for biologicals.

  • 2020-03-26: Covid-19 Pandemic (Biological)
  • 2020-03-13: Covid-19 (Biological)
  • 2005-09-07: Hurricane Katrina Evacuation (Hurricane)
  • 2002-05-21: Severe Storms, Tornadoes And Flooding (Tornado)

OpenFEMA disaster declarations summaries.

Getting there and nearby towns

MidAmerica St. Louis Airport (BLV) is the nearest airport with scheduled flights listed in OpenStreetMap, 9 miles away.

  • Aviston 4 mi east, about 7 min by car
  • New Baden 5 mi south, about 8 min by car
  • Lebanon 7 mi west, about 11 min by car
  • Breese 9 mi east, about 14 min by car
  • Scott AFB 10 mi southwest, about 16 min by car
  • Highland 11 mi north, about 18 min by car
  • O'Fallon 12 mi west, about 20 min by car
  • Shiloh 13 mi west, about 21 min by car
  • Marine 13 mi north, about 22 min by car
  • Troy 14 mi northwest, about 22 min by car

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

Reviews, tips and questions

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Sources and licences

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