A Gazetteer for the United States and Canada

Monmouth, Illinois

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The location of Monmouth

Welcome to Monmouth ...

The city of Monmouth is located in Warren County and is the County Seat for Warren County.

The location of Monmouth has been provided by the Geographic Names Information System (ie- the GNIS).<1>

The pronunciation of Monmouth: MON-muhth<2>

From the  Census Estimates for 2018, Monmouth has a population of 8,998 people<3> (see below for details).

Monmouth is 730 feet [223 m] above sea level.<4>.

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

Monmouth is within the (309) area code.

The ZIP code for Monmouth: 61462<5>

Population Details ...

At the time of the 2010 Census, Monmouth had a population of 9,444 people (or 53.33% of the total population of Warren County). This makes Monmouth the county's most populous community.

The population of Monmouth represents 0.07% of the total population of Illinois (which has 12,830,632 people), making it the state's 230th most populous community.

With a 2010 count of 9,444 people, the population of Monmouth decreased 4.03% from the 2000 Census (with a count of 9,841 people).

Taken from the 2018 Census Estimates, Monmouth had an population of 8,998 people. This is a decrease of 4.72% since the 2010 Census (or a decrease of 8.57% since the 2000 Census).

More information can be found on the Census Page for Monmouth.

Communities Also Named Monmouth ...

Using our Gazetteer, we have found that there are 9 communities that are also named Monmouth - they are located in Alabama, California, Indiana, Iowa, Kansas (3), Maine and Oregon.

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

Websites for Monmouth ...

Official Website:

Our Genealogy Helper Page ...

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

  • We have a list of cemeteries that are in the area around Monmouth. If available, we provide a satellite view of the cemetery.
  • Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Monmouth. Our list includes information such as whether the community had a post office or railroad service in 1895.
  • We also have a detailed list of newspapers that have been published in the area around Monmouth. Our list includes 19 papers.

These sections can be found on our Genealogy Helper Page for Monmouth:

TripAdvisor Tourism Pages for Monmouth ...

Looking for more information about Monmouth? 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.

In addition to the Tourism page for Monmouth, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Monmouth.

Communities near Monmouth ...

A sample of nearby communities can be found below.

Galesburg   [Map]

Lies 14 miles [22.5 km]<6> to the East (E) of Monmouth

Located in Knox County

Abingdon   [Map]

Lies 14 miles [22.5 km]<6> to the Southeast (SE) of Monmouth

Located in Knox County

Knoxville   [Map]

Lies 18 miles [29 km]<6> to the East (E) of Monmouth

Located in Knox County

Oquawka   [Map]

Lies 16 miles [25.7 km]<6> to the West (W) of Monmouth

Located in Henderson County

Roseville   [Map]

Lies 12 miles [19.3 km]<6> to the South (S) of Monmouth

Stronghurst   [Map]

Lies 18 miles [29 km]<6> to the Southwest (SW) of Monmouth

Located in Henderson County

Alexis   [Map]

Lies 11 miles [17.7 km]<6> to the Northeast (NE) of Monmouth

Located in Mercer County

East Galesburg   [Map]

Lies 17 miles [27.4 km]<6> to the East (E) of Monmouth

Located in Knox County

Kirkwood   [Map]

Lies 6 miles [9.7 km]<6> to the Southwest (SW) of Monmouth

Keithsburg   [Map]

Lies 19 miles [30.6 km]<6> to the Northwest (NW) of Monmouth

Located in Mercer County

To learn more about neighboring communities and counties, please visit the Nearby Page for Monmouth.

Other Roadside Stops ...

Cities, Towns and Villages of Illinois

About Warren County

About Illinois

Off-the-Road Links ...

The official website for Monmouth:

The official website for State of Illinois:

Footnotes ...

<1>The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we have found that accuracy can vary and you should double-check the location if accuracy is required.
<2>The pronunciation we've provided is our attempt to give a phonetic pronunciation for Monmouth. While it might not be exactly right, hopefully it will be close. If we have it wrong or there's a better way to pronounce the name, please contact us through our Feedback Page.
<3>Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Monmouth.
<4>The elevation is an estimate for the area around Monmouth - it will be higher in some places and lower in others.
<5>ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a city (such as Monmouth). When looking for a ZIP Code, whether Monmouth or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<6>Our distances are not driving distances, but are calculated as a 'straight-line' distance. A straight line distance ignores things like rivers, canyons, lakes, et cetera - it's truly a line from Point A (ie- Monmouth) to Point B.

If you need the driving distance (or directions), we recommend that you use one of the Mapping Services listed on our Map Page for Monmouth. Since we usually use Google Maps for our own planning, we've provided the following link: Google Map and Driving Directions starting from Monmouth

Our distance measurements begin at a specific point in Monmouth. The point we use is located at these GPS coordinates - Latitude: 40.9140, Longitude: -90.6420     [Map].   In this case, the coordinates for Monmouth have been provided by the Geographic Names Information System (GNIS).






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This page was last modified: 29 Mar 2020