Welcome to Koster ...

Koster is located in Kankakee County<1>.

The location of Koster has been provided by the Geographic Names Information System (the GNIS).<2>

While we don't have a date for the founding of Koster, you might consider that their post office opened  in 1891.

Koster is 630 feet [192 m] above sea level.<3>.

Time Zone: Koster lies in the Central Time Zone (CST/CDT) and observes daylight saving time

Note: If you travel south from Koster (for example, toward Ambia (IN)), you will leave Central Time and cross into the Eastern Time Zone (EST/EDT).

Telephone area codes for Koster: (815) & (779)<4>

Websites for Koster ...

Junior League:   www.jlkankakee.org/

Communities Also Named Koster ...

Using our Gazetteer, we found another community named Koster - it's located in British Columbia.

For more information, see our Tidbits & Trivia Page for Koster.

Communities near Koster ...

We have created a list of 10 communities that are near Koster.

• Kankakee
  (9 miles [14.5 km] to the west)
  • Jump to our Gazetteer entry for Kankakee
  • Kankakee is located in Kankakee County
  • Population from the 2020 Census: 25,668 people
  • Jump to TripAdvisor's Tourism page for Kankakee <5>
• Bourbonnais
  (11 miles [17.7 km] to the northwest)
  • Note: The GPS coordinates that we are using for Bourbonnais have been provided by the GNIS.<2> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Bourbonnais
  • Bourbonnais is located in Kankakee County
  • Population from the 2020 Census: 19,378 people
  • Jump to TripAdvisor's Tourism page for Bourbonnais <5>
• Bradley
  (9 miles [14.5 km] to the northwest)
  • Note: The GPS coordinates that we are using for Bradley have been provided by the GNIS.<2> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Bradley
  • Bradley is located in Kankakee County
  • Population from the 2020 Census: 15,132 people
  • Jump to TripAdvisor's Tourism page for Bradley <5>
• Lowell
  (19 miles [30.6 km] to the northeast)
  • Note: The GPS coordinates that we are using for Lowell have been provided by the GNIS.<2> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Lowell
  • Lowell is located in Lake County (IN)
  • Population from the 2020 Census: 10,137 people
  • Jump to TripAdvisor's Tourism page for Lowell <5>
• Manteno
  (13 miles [20.9 km] to the northwest)
  • Note: The GPS coordinates that we are using for Manteno have been provided by the GNIS.<2> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Manteno
  • Manteno is located in Kankakee County
  • Population from the 2020 Census: 8,892 people
  • Jump to TripAdvisor's Tourism page for Manteno <5>
• Beecher
  (17 miles [27.4 km] to the north)
  • Jump to our Gazetteer entry for Beecher
  • Beecher is located in Will County
  • Population from the 2020 Census: 4,385 people
  • Jump to TripAdvisor's Tourism page for Beecher <5>
• Peotone
  (17 miles [27.4 km] to the north)
  • Jump to our Gazetteer entry for Peotone
  • Peotone is located in Will County
  • Population from the 2020 Census: 4,100 people
  • Jump to TripAdvisor's Tourism page for Peotone <5>
• Momence
  (5 miles [8 km] to the north)
  • Note: The GPS coordinates that we are using for Momence have been provided by the GNIS.<2> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Momence
  • Momence is located in Kankakee County
  • Population from the 2020 Census: 3,049 people
  • Jump to TripAdvisor's Tourism page for Momence <5>
• Limestone
  (13 miles [20.9 km] to the west)
  • Note: The GPS coordinates that we are using for Limestone have been provided by the GNIS.<2> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Limestone
  • Limestone is located in Kankakee County
  • Population from the 2020 Census: 1,498 people
• Clifton
  (16 miles [25.7 km] to the southwest)
  • Jump to our Gazetteer entry for Clifton
  • Clifton is located in Iroquois County
  • Population from the 2020 Census: 1,297 people
  • Jump to TripAdvisor's Tourism page for Clifton <5>

To Help With Your Genealogy Research ...

We have a couple of sections for those tracing their genealogy.

We created a list of cemeteries that are in the area around Koster. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Koster.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Koster. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Koster.

We also have a detailed list of newspapers that have been published in the area around Koster. See our Newspapers Page for Koster.

TripAdvisor Tourism Pages for Koster ...

Looking for more information about Koster? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.

While we are unaware of a Tourism page that is specific to Koster, there are neighboring communities that do have Tourism pages. A map of those communities can be found with our TripAdvisor Page for Koster.

Adding Koster to Our Gazetteer ...

We originally found mention of Koster in the GNIS. For more information, see the Referenced GNIS Codes section on our Miscellaneous Page.

From our notes, the earliest published mention we've found for Koster was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<6>

From that list, the Koster post office opened in 1891.

We also found Koster in the book titled Business Atlas and Shippers' Guide (1895).

For more details, see References and Mentions for Koster.

Off-the-Road Links ...

Unfortunately, we don't know of a website for Koster. If you can help, please contact us through our Feedback Page.

The official website for Kankakee County: www.co.kankakee.il.us/

The official website for State of Illinois: https://illinois.gov