Saint Marys, West Virginia
Census Data for Saint Marys ...
The most recent Census Estimate<1> was for 2017 and it gives Saint Marys a population of 1,787 people.
The last Decennial Census<2> was in 2010, giving Saint Marys a population of 1,860 people.
The city of Saint Marys is located in Pleasants County. The 2010 Census gave Pleasants County a population of 7,605 people. This means that Saint Marys had 24.46% of the county's total population, making it Pleasants' most populous community.
At the same time, West Virginia had a population of 1,852,994 people, meaning that Saint Marys had 0.1% of the total population of West Virginia - making it the state's 64th most populous community.
When the Census Bureau conducts a census for a city like Saint Marys, they draw a boundary around the area in which they are going to conduct their count - this is called a sampling area (or 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 Marys reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Saint Marys might be slightly different, it's best to check with the U.S. Census Bureau if you need precision.
The 2010 Census shows that the sample polygon for Saint Marys has a total area of 1.03 square miles [2.7 km²]. Of this total, a small amount of the area is covered by water (0 square miles [0 km²]).
Pleasants County has a land area of 130.1 square miles [337 km²]. At 1.02 square miles [2.7 km²], Saint Marys has 0.79% 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 at the center of the polygon). At the time of the 2010 Census, the sampling area was located at:
Lat: 39° 23' 42" (or 39.4°) [Map]
Lon: -81° 12' 9" (or -81.2°)
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 (1,860 people) and land area (1.02 square miles [2.7 km²]) values from the 2010 Census, Saint Marys had a population density of 1,812 people per square mile [699 people/km²].
In comparison, the 2000 Census shows Saint Marys had a population of 2,017 people and a land area of 0.97 square miles [2.5 km²]. This gives a population density of 2,070 people per square mile [799 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 Marys. You need to be careful when making such a comparison, the differences are likely to lead to an incorrect comparison. More information about the changes can be found in the section Census-to-Census Observations ... (see below).
Housing Units ...
At the time of the 2010 Census, Saint Marys had 954 Housing Units<3> and with its population of 1,860 people, this averages 1.95 people per Housing Unit.
The 2010 Census shows Saint Marys had a land area of 1.02 square miles [2.7 km²]. This translates to 929 Housing Units per square mile [359 housing units/km²].
From the Census of 2000: Saint Marys had 961 Housing Units, a population of 2,017 people and a land area of 0.97 square miles [2.5 km²]. This gives a density of 2.1 people per Housing Unit and 986 Housing Units per square mile [380.9 housing units/km²].
NOTE: Repeating the caution above (under Population Density), be aware that when comparing Housing Units between the 2000 Census and the 2010 Census, there were changes in the sampling area for Saint Marys and you need to be careful when comparing between the censuses. More information about the changes can be found in the section called Census-to-Census Observations ... (see below).
Pleasants County ...
Saint Marys is located in Pleasants County and is the County Seat for Pleasants County.
The county had a population of 7,605 people at the 2010 Census. With it's population of 1,860 people, Saint Marys represented 24.46% of the county's total.
In addition, where the city of Saint Marys has a population density of 1,812 people per square mile [699 people/km²], Pleasants County averages 58.5 people per square mile [22.57 people/km²].
For more information, please visit our Census Page for Pleasants County.
Population Rings for Saint Marys ...
To help identify the number of people who live in Saint Marys and the surrounding area, we have drawn concentric rings centered on Saint Marys. We counted the number of communities within each ring and summed their populations.<4>
| Radius ||No of|
|5 mi [8 km]||2||2,663||-3.62%|
|10 mi [16 km]||2||2,663||-3.62%|
|15 mi [24 km]||12||25,010||-3.65%|
|20 mi [32 km]||21||70,292||-4.16%|
|25 mi [40 km]||31||87,622||-3.78%|
|30 mi [48 km]||36||90,218||-3.78%|
Census-to-Census Observations ...
When the Census Bureau takes a census count (or enumeration) for Saint Marys, 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 Marys. 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.
The sampling area (or polygon) given for the 2010 Census is 5.31% larger than the 2000 Census.
The 2010 Census shows that the total area for Saint Marys was 1.03 square miles [2.7 km²]. Of this total, only a minor amount of the area is covered by water.
The 2000 Census shows a total area of 0.97 square miles [2.5 km²]. Of this total, only a minor amount of the area is covered by water.
While generally coinciding with the GPS location (latitude/longitude) of Saint Marys, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Saint Marys.
For the 2010 Census, the location was given as:
Lat: 39.395054° (or 39°23'42" N) [Map]
Lon: -81.202758° (or -81°12'9" W)
For the 2000 Census, the location given was:
Lat: 39.396393° (or 39°23'47" N) [Map]
Lon: -81.199701° (or -81°11'58" W)
The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 990 feet to the southwest<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 (#2390658) to Saint Marys. This identifier also marks a GSP point on the map, and that point lies within the boundaries of Saint Marys. The GNIS point has been mapped to the latitude/longitude:
Lat: 39.393799° (or 39°23'37" N) [Map]
Lon: -81.203117° (or -81°12'11" W)
The GSP location given for the 2010 Census lies 468.6 feet to the north<6> of the point given by the GNIS for Saint Marys. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Saint Marys.
Miscellaneous Information for Saint Marys ...
The Federal government has assigned various identifying codes to each community, county and state. At one time or another, the US Census Bureau has referenced one (or more) of the following identifiers when referring to either Pleasants County or the city of Saint Marys:
The GNIS Codes ...
The current system of identification is called the Geographic Names Information System (GNIS). The following GNIS codes relate to Saint Marys:
GNIS ID for Saint Marys: 2390658
GNIS ID for Pleasants County: 1678557
GNIS ID for West Virginia: 1779805
The FIPS Codes ...
An earlier (and largely obsolete) identification method was called the Federal Information Processing Standard (FIPS):
State Code: 54 (West Virginia)
County Code: 073 (Pleasants County)
Place Code: 71356 (Saint Marys)
State & County Code: 54/073 (West Virginia / Pleasants County)
State & Place Code: 54/71356 (West Virginia / Saint Marys)
Misc. Census Codes ...
Saint Marys is located in Census Region #3 (the South Region) and Division #5 (the South Atlantic Division).
For more information about the various Federal identification codes, please visit our Misc Page for Saint Marys.
|<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 2017.|
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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.|
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|<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).|
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|<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 119 degrees and a distance of 990 feet.|
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|<6>||The calculated bearing (or angle) to the GNIS point is 347 degrees and a distance of 468.6 feet.|
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For additional information, please visit our Glossary for Saint Marys.