Koster, Illinois

Koster: a city in Kankakee County, Illinois.

About

Koster is a city located in the county of Kankakee in the U.S. state of Illinois.

Quick Facts about Koster

State Illinois (United States)
County Kankakee County
Latitude & Longitude 41.0917,-87.6850
Time Zone America/Chicago
Local time 23:06:30 (6th November 2026)
Weather 40℉ Chance Rain Showers then Cloudy 7-days weather

Geography

Koster is located at 41°5'30"N 87°41'6"W (41.0917000, -87.6850400).

Koster map

Click "full screen" full screen map icon to open full mode. View satellite images

Weather

40°F
Chance Rain Showers then Cloudy
5 to 10 mph NW Tonight

A chance of rain showers and areas of drizzle before midnight. Cloudy, with a low around 40. Northwest wind 5 to 10 mph, with gusts as high as 20 mph....

7-Day Forecast

Nearby Schools and Colleges

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

Code Name City ZIP
146348 Kankakee Community College Kankakee (IL) 60901
143376 Paul Mitchell the School-Bradley Bourbonnais (IL) 60914
147828 Olivet Nazarene University Bourbonnais (IL) 60914-2271
145336 Governors State University University Park (IL) 60484

Nearby Transit Stations (23)

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

Code Name Address Type
KKI Kankakee 199 South East Ave. RAIL
GLM Gilman US Hwy 24 & West Wenona St. RAIL
DYE Dyer station 913 Sheffield Avenue RAIL
REN Rensselaer 619 North Cullen Street RAIL
HMW Homewood 18015 Park Ave. RAIL

Closest post offices linked to Koster.

Post Office Name City ZIP
Saint Ann Post Office Saint Anne (IL) 60964

Other cities in Kankakee County

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

City Name Population Title
Kankakee 25,668 City in Kankakee County, Illinois, United States
Bourbonnais 19,378 Human settlement in Kankakee County, Illinois, United States of America
Bradley 15,132 Village in Illinois, United States
Manteno 8,892 City in Illinois, United States of America
Momence 3,049 City in Kankakee County, Illinois, United States
Otto 2,445 Township in Kankakee County, Illinois
Herscher 1,483 City in Illinois, United States of America
Grant Park 1,231 Village in Kankakee County, Illinois, United States