Learn About
The Commemorative
Quarter for
Illinois

Summary for Denny

So far, we found very little information about Denny. The little that we've found leads us believe that the community is historic.<1>

We've added Denny to our Gazetteer with the hope that we can develop more information. If you can help us with Denny, please Contact Us.

About Denny (Click for our profile page)

Our information shows that the community of Denny is historic. The information below applies to the area where Denny would have been located.

Time Zone: The area where Denny was located is in the Central Time Zone (CST/CDT)

Telephone Area Codes: 309 & 861<2>

Elevation: 650 feet [198.12 m] above sea level<3>

GPS Coordinates (Latitude/Longitude)<4>

For the purpose of mapping and calculating distances, we have chosen the following reference point for Denny:

Lat: 40.994800° (or 40°59'41" N)

Lon: -90.698700° (or -90°41'55" W)

USGS Topo Map: Monmouth<5>

Federal GNIS/FIPS Codes for Denny

GNIS ID: 1823692

FIPS State / Place Code: None

(For more about Federal Codes, see our Misc Page for Denny)

About Warren County

The community of Monmouth is the County Seat for Warren County.

From the 2010 US Census (For more detail, see our Census Page for Warren)

Population

Year	Population
2019 Est:<6>	16,844 (4.91% decrease since 2010)
2010	17,713 (5.46% decrease since 2000)
2000:	18,735

Total Area:<7> 543 sq. miles [1,406.5 km²]

Housing Units: <8> 7,682

Official Website: https://warrencountyil.gov/

Federal GNIS/FIPS Codes for Warren

GNIS ID: 1785134

FIPS State / County Code: 17 / 187

(For more about Federal Codes, see our Misc Page for Denny)

About Illinois

From the US Census

Population

Year	Population
2019 Est:	12,667,017 (1.28% decrease since 2010)
2010:	12,830,632 (3.31% increase since 2000)
2000:	12,419,293

Websites for State of Illinois

Official Website: https://www.illinois.gov/

Tourism: https://www.enjoyillinois.com/

Parks: https://dnr.illinois.gov/

Fishing: https://www.ifishillinois.org/

Hunting: https://dnr.illinois.gov/hunting.html

Federal GNIS/FIPS Codes for State of Illinois

GNIS ID: 1779784

FIPS State: 17

(For more about Federal Codes, see our Misc Page for Denny)

Footnotes ...

<1>	We use the term 'Historic' broadly and it generally means that the community no longer exists. However, it can also mean that the community might still exist, but was significantly larger or had a more 'official' existence in the past than it does now. Unfortunately our sources of data have proven to be unreliable. If you can provide us with more specific information about Denny, please let us know so that we can improve our accuracy.
<2>	When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 309 code has been Overlayed with the 861 area code. New phone numbers in the Denny area will be assigned with one of these codes: 309 or 861. As a result, placing a call in the Denny area will require 10-digit dialing (where you enter both the area code and then the phone number).
<3>	The elevation is an estimate for the area around Denny - it will be higher in some places and lower in others.
<4>	Longitude & latitude values may not be the geographic center of Denny, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<5>	Name of the USGS 7.5 Minute topographic map which includes Denny.
<6>	Every year, the US Census Bureau creates a population estimate for the preceeding year. Keep in mind that this value is an estimate and not an actual count. The most recent Census estimate is for the year 2019.
<7>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Denny. The value given by the Census Bureau reflects their statistical (or sampling) requirements. For example, if there is a cluster of people living just outside of the community's official boundary, the Census-defined area might be expanded to include that group.
<8>	A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).