Where is Dennison located?

Dennison, IL is located at latitude 39.4608700 and longitude -87.5978000. It is in United States.

What is the elevation of Dennison?

Dennison, IL has an elevation of 177 meters (581 feet) above sea level.

What time zone is Dennison in?

Dennison, IL is in the America/Chicago time zone.

What state is Dennison in?

Dennison is in the state of Illinois, United States.

What county is Dennison, IL in?

Dennison is in Clark County, Illinois.

Dennison, IL - Geographic Facts & Maps

Dennison: a city in Clark County, Illinois.

About

Dennison is a city located in the county of Clark in the U.S. state of Illinois.

Quick Facts about Dennison

State	Illinois (United States)
County	Clark County
Latitude & Longitude	39.4609,-87.5978
Time Zone	America/Chicago
Local time	20:29:38 (6th November 2026)
Postal code	62423
Weather	42℉ Slight Chance Rain Showers then Slight Chance Light Rain 7-days weather

Geography

Dennison is located at 39°27'39"N 87°35'52"W (39.4608700, -87.5978000).

Dennison map

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Weather

42°F

Slight Chance Rain Showers then Slight Chance Light Rain

5 to 13 mph NW Tonight

A slight chance of rain showers between 10pm and 1am, then a slight chance of rain between 1am and 4am. Cloudy, with a low around 42. Northwest wind 5...

7-Day Forecast

Dennison zip code is 62423. County name: Clark, County fips: 17023

Best Things to Do in Dennison

1Welcome to Illinois state sign

Rating: 3.6 (29)

26195 W Kasameyer Dr, Dennison, IL 62423, United States View details

Nearby Schools and Colleges

Schools and campuses linked to Dennison, IL. Select a name to open its map and contact details.

Code	Name	City	ZIP
152381	Saint Mary-of-the-Woods College	Saint Mary of the Woods (IN)	47876-1099

Nearby Transit Stations (7)

Rail and bus stations connected to Dennison, IL. Select a station to open its map and address details.

Code	Name	Address	Type
MAT	Mattoon station	1718 Broadway Ave.	RAIL
DVI	Danville, Illinois	379 Lynch Road	BUS
CRF	Crawfordsville	Spring and Green Streets	RAIL
CRB	Crawfordsville (Bus), Indiana	1000 Smith Ave	BUS
EFG	Effingham	401 West National Ave.	RAIL

Nearby Post Offices

Closest post offices linked to Dennison.

Post Office Name	City	ZIP
Marshall Post Office	Marshall (IL)	62441

Other cities in Clark County

Cities, towns, neighborhoods & other populated places in Clark County , IL.

City Name	Population	Title
Marshall	3,774	City in Clark County, Illinois, United States
Casey	2,585	City in Illinois
Martinsville	1,076	Township in Clark County, Illinois

Dennison, Illinois