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Summary for Keystone

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

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

About Keystone (Click for our profile page)

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

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

Telephone Area Codes: 816 & 975<2>

Elevation: 1,040 feet [316.99 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 Keystone:

Lat: 39.691700° (or 39°41'30" N)

Lon: -94.316100° (or -94°18'57" W)

USGS Topo Map: Cameron West<5>

Federal GNIS/FIPS Codes for Keystone

GNIS ID: 739995

FIPS State / Place Code: 29 / 38440

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

About Clinton County

The community of Plattsburg is the County Seat for Clinton County.

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

Population

Year	Population
2019 Est:<6>	20,387 (1.7% decrease since 2010)
2010	20,740 (9.28% increase since 2000)
2000:	18,979

Total Area:<7> 423.5 sq. miles [1,096.8 km²] - of which 1.07% is water (4.53 sq. miles [11.7 km²])

Housing Units: <8> 8,876

Official Website: https://clintoncomo.org/

Federal GNIS/FIPS Codes for Clinton

GNIS ID: 758479

FIPS State / County Code: 29 / 049

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

About Missouri

From the US Census

Population

Year	Population
2019 Est:	6,140,475 (2.53% increase since 2010)
2010:	5,988,927 (7.04% increase since 2000)
2000:	5,595,211

Websites for State of Missouri

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

Tourism: https://www.visitmo.com/

Parks: https://mostateparks.com/

Fishing: https://mdc.mo.gov/fishing

Hunting: https://mdc.mo.gov/hunting-trapping

Federal GNIS/FIPS Codes for State of Missouri

GNIS ID: 1779791

FIPS State: 29

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

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 Keystone, 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 816 code has been Overlayed with the 975 area code. New phone numbers in the Keystone area will be assigned with one of these codes: 816 or 975. As a result, placing a call in the Keystone 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 Keystone - it will be higher in some places and lower in others.
<4>	Longitude & latitude values may not be the geographic center of Keystone, 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 Keystone.
<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 Keystone. 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).