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Saint Marys, Kansas
(Pottawatomie County)

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Located in: Primarily Pottawatomie County (see below). A portion of Saint Marys extends into Wabaunsee County.

Typical Abbreviation: St. Marys

Time Zone: Saint Marys lies in the Central Time Zone (CST/CDT)

Telephone Area Code: (785)

ZIP Code: 66536<1>

Elevation: 1,010 feet [307.85 m] above sea level<2>

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


2018:<3>     2,636   (0.34% increase since 2010)  
2010:     2,627   (19.52% increase since 2000)
2000:     2,198

Total Area:<4>   1.18 sq. miles [3.1 km²]

Housing Units:<5>   900

GPS Coordinates (Latitude/Longitude)<6>

For the purpose of mapping and calculating distances, we have chosen a reference point within Saint Marys. The point that we are using is located at these GPS coordinates - Latitude: 39.1942, Longitude: -96.0647     [Map].   In this case, the coordinates for Saint Marys have been provided by the Geographic Names Information System (GNIS).

DMS - Degrees, Minutes, Seconds

Lat:   39° 11' 39"
Lon:   -96° 3' 52"

Name of USGS Topo Map:<7>   Saint Marys

Federal GNIS/FIPS Codes for Saint Marys

GNIS ID:   2396507
FIPS State / Place Code:   20 / 62400

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

About Pottawatomie County

The city of Westmoreland is the County Seat for Pottawatomie County.

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


2018:     24,277   (12.37% increase since 2010)  
2010:     21,604   (18.64% increase since 2000)
2000:     18,209

Total Area:   861 sq. miles [2,232.3 km²]   - of which 2.42% is water (20.89 sq. miles [54.1 km²])

Housing Units:   8,626

Official Website:

Federal GNIS/FIPS Codes for Pottawatomie

GNIS ID:   485038
FIPS State / County Code:   20 / 149

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

About Kansas

From the US Census


2018:     2,911,505   (2.05% increase since 2010)  
2010:     2,853,118   (6.13% increase since 2000)
2000:     2,688,418

Websites for State of Kansas

Official Website:

Federal GNIS/FIPS Codes for State of Kansas

GNIS ID:   481813
FIPS State:   20

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

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About Pottawatomie County

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

The official website for Pottawatomie County:

The official website for State of Kansas:

Footnotes ...

<1>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 Saint Marys). When looking for a ZIP Code, whether Saint Marys or elsewhere, it's always best to check the website of the United States Postal Service (USPS).

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<2>The elevation is an estimate for the area around Saint Marys - it will be higher in some places and lower in others.

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<3>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 2018.

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<4>The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Saint Marys. 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.

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<5>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).

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<6>The longitude & latitude values may not be the geographic center of Saint Marys, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.

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<7>The USGS 7.5 Minute topographic map which includes Saint Marys.

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This page was last modified: 27 Aug 2019
By John Hall