A Gazetteer for the United States and Canada

Saint John, Kansas
(Stafford County)

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The location of Saint John

Census Data for Saint John ...

Population ...

The most recent Census Estimate<1> was for 2018 and it gave Saint John a population of 1,188 people.

The last Decennial Census<2> was in 2010, which gave Saint John a population of 1,295 people.

The city of Saint John is located in Stafford County. The 2010 Census gave Stafford County a population of 4,437 people. This means that Saint John had 29.19% of the county's total population, making it Stafford's most populous community.

At the same time, Kansas had a population of 2,853,118 people, meaning that Saint John had 0.05% of the total population of Kansas - making it the state's 168th most populous community.

Area ...

When the Census Bureau conducts a census for a city like Saint John, they draw a boundary around the area in which they are going to conduct their count - this defines the sampling area (usually shaped as a polygon). The shape of the sampling area can be quite complex and it's important to keep in mind that the boundaries of the sampling area may or may not match the recognized boundaries of the city.

Things like the population, area and housing for Saint John reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Saint John might be different, it's best to check with the U.S. Census Bureau to resolve any difference between the two.

The 2010 Census shows that the sampling area for Saint John has a total area of 1.88 square miles [4.9 km²].

Stafford County has a land area of 792 square miles [2,051.4 km²]. At 1.88 square miles [4.9 km²], Saint John has 0.24% of the county's total land area.

Not only does the sampling area define boundaries, it also has a GPS location (latitude & longitude) that indicates a point within the sampling area (usually the center of the polygon, known as the centroid). At the time of the 2010 Census, the sampling area was located at:

Lat:   37° 59' 59"   (or 38°)             [Map]

Lon:   -98° 45' 38"   (or -98.76°)

More information on this topic and the changes between the 2000 Census and the 2010 Census can be found in the section for our Census-to-Census Observations ... (see below).

Population Density ...

Using the population (1,295 people) and land area (1.88 square miles [4.9 km²]) values from the 2010 Census, Saint John had a population density of 690 people per square mile [266.7 people/km²].

In comparison, the 2000 Census shows Saint John had a population of 1,318 people and a land area of 1.8 square miles [4.7 km²]. This gives a population density of 732 people per square mile [282.7 people/km²]

NOTE: Be aware that when comparing population density between the 2000 and the 2010 Census, there were changes in the sampling area for Saint John. You need to be careful when making such a comparison, the differences are likely to lead to an incorrect comparison. More information about the nature of these differences can be found in the section Census-to-Census Observations ... (see below).

Housing Units ...

At the time of the 2010 Census, Saint John had 642 Housing Units<3> and with its population of 1,295 people, this averages 2.02 people per Housing Unit.

The 2010 Census shows Saint John had a land area of 1.88 square miles [4.9 km²]. This translates to 342.4 Housing Units per square mile [132.2 housing units/km²].

From the Census of 2000: Saint John had 686 Housing Units, a population of 1,318 people and a land area of 1.8 square miles [4.7 km²]. This gives a density of 1.92 people per Housing Unit and 381.1 Housing Units per square mile [147.1 housing units/km²].

NOTE: Repeating the caution above (under Population Density), be aware that when comparing Housing Units between the 2000 and the 2010 Census, there were changes in the sampling area for Saint John and you need to be careful when comparing values between the censuses. More information about the changes can be found in the section called Census-to-Census Observations ... (see below).

Stafford County ...

The community of Saint John is located in Stafford County and is the County Seat for Stafford County.

The county had a population of 4,437 people at the 2010 Census. With it's population of 1,295 people, Saint John represented 29.19% of the county's total.

In addition, where the city of Saint John has a population density of 690 people per square mile [266.7 people/km²], Stafford County averages 5.6 people per square mile [2.16 people/km²].

For more information, please visit our Census Page for Stafford County.

Population Rings for Saint John ...

To help identify the number of people who live in Saint John and the surrounding area, we have drawn concentric rings centered on Saint John. We counted the number of communities within each ring and summed their populations.<4>

  Radius   No of
  Since 2010    
5 mi   [8 km]11,188-8.26%
10 mi   [16 km]32,268-8.03%
15 mi   [24 km]72,920-6.98%
20 mi   [32 km]113,518-6.49%
25 mi   [40 km]1829,832-5.07%
30 mi   [48 km]2633,249-5.18%

Census-to-Census Observations ...

Introduction ...

When the Census Bureau takes a census count (or enumeration) for Saint John, they start by specifying the boundaries of the area to be counted. This area (or sampling area) is a polygon and its shape can be quite complex - it may or may not match the geographical boundaries of Saint John. It's important to note that from one Census to the next, the shape and location of the polygon can change. If you need precision or details about the methodology of the Census, you should visit the U.S. Census Bureau for a definitive answer.

Area ...

The sampling area (or polygon) given for the 2010 Census is 4.15% larger than the 2000 Census.

The 2010 Census shows that the total area for Saint John was 1.88 square miles [4.9 km²]. Of this total, only a minor amount of the area is covered by water.

The 2000 Census shows a total area of 1.8 square miles [4.7 km²]. Of this total, only a minor amount of the area is covered by water.

Location ...

While generally coinciding with the GPS location (latitude/longitude) of Saint John, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Saint John.

For the 2010 Census, the location was given as:

Lat:   37.999845°   (or 37°59'59" N)             [Map]

Lon:   -98.760573°   (or -98°45'38" W)

For the 2000 Census, the location given was:

Lat:   38.001029°   (or 38°0'3" N)             [Map]

Lon:   -98.761045°   (or -98°45'39" W)

The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 452.5 feet to the south<5> of the location that was used in the 2000 Census.

The U.S. Geological Survey (USGS) and the U.S. Board on Geographic Names (BGN) have assigned a unique GNIS identifier (#2396496) to Saint John. This identifier also marks a GSP point on the map, and that point lies within the boundaries of Saint John. The GNIS point has been mapped to the latitude/longitude:

Lat:   38.000865°   (or 38°0'3" N)             [Map]

Lon:   -98.760685°   (or -98°45'38" W)

The GSP location given for the 2010 Census lies 373.3 feet to the south<6> of the point given by the GNIS for Saint John. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Saint John.

Miscellaneous Information for Saint John ...

The Federal government has assigned various identifying codes to each community, county and state. At one time or another, the US Census Bureau has used one (or more) of the following identifiers when referring to either Stafford County or the city of Saint John:

The GNIS Codes ...

The current system of identification is called the Geographic Names Information System (GNIS). The following GNIS codes relate to Saint John:

GNIS ID for Saint John: 2396496

GNIS ID for Stafford County: 485054

GNIS ID for Kansas: 481813

The FIPS Codes ...

An earlier (and largely obsolete) identification method was called the Federal Information Processing Standard (FIPS):

State Code: 20 (Kansas)

County Code: 185 (Stafford County)

Place Code: 62275 (Saint John)

State & County Code: 20/185 (Kansas / Stafford County)

State & Place Code: 20/62275 (Kansas / Saint John)

Misc. Census Codes ...

Saint John is located in Census Region #2 (the Midwest Region) and Division #4 (the West North-Central Division).

The US Postal Service ZIP Code ...

While some people have used a ZIP code to identify a community, the purpose of the ZIP code was to make mail delivery more efficient by grouping addresses together. Although the ZIP Code doesn't specifically identify a city like Saint John, it does identify addresses that are in (or near) Saint John. It's important to remember that the boundaries of a ZIP Code can be changed, re-assigned or overlapped with other ZIP Codes.

The ZIP code for Saint John: 67576<7>

Census ZCTA Codes ...

The US Census Bureau created statistical entities that they call ZIP Code Tabulation Areas (ZCTAs) and these ZCTAs are frequently confused with the ZIP codes that come from the US Postal Service (USPS).

ZCTAs were first created for the 2000 Census and at that time, they were based upon the USPS ZIP codes. While largely covering the same areas, the boundaries of a ZCTA do not necessarily match the boundaries of a postal ZIP code with the same number. For example, while a postal ZIP code can cross a county or state line, a Census ZCTA can not. They should be treated as separate entities with no correlation between them.

For more information about the various Federal identification codes, please visit our Misc Page for Saint John.

Other Roadside Stops ...

Find a Community in Kansas

About Stafford County

About Kansas

Off-the-Road Links ...

The official website of the U.S. Census Bureau

The official website for Saint John:

The official website for Stafford County:

The official website for State of Kansas:

The official website of the U.S. Board on Geographic Names (BGN)

The official website of the U.S. Geological Survey (USGS)

Footnotes ...

<1>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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<2>Every 10 years (eg- 1990, 2000, 2010), the US Census Bureau conducts a Constitutionally-mandated count (or enumeration) of people living within the United States. This count is called a Decennial Census. The last Decennial Census was the 2010 Census, with the next one planned for 2020.

- Return to Citation

<3>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).

- Return to Citation

<4>The communities in our count are those provided by the 2010 Census, so keep in mind that our population rings will only include the people living in those communities. Smaller communities usually don't participate directly in the Census and therefore they won't be included. While our count is a close approximation, it shouldn't be considered as a complete or accurate count.

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<5>The calculated bearing (or angle) to the 2010 Census location is 197 degrees and a distance of 452.5 feet.

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<6>The calculated bearing (or angle) to the GNIS point is 184 degrees and a distance of 373.3 feet.

- Return to Citation

<7>When looking for a ZIP Code, whether Saint John or elsewhere, it's always best to check the website of the United States Postal Service (USPS).

- Return to Citation






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This page was last modified: 27 Aug 2019