Census Data for Twin ...
The most recent Census Estimate<1> was for 2015 and it gives Twin a population of 389 people.
The last Decennial Census<2> was in 2010, giving Twin a population of 399 people.
The town of Twin is located in Marion County. The 2010 Census gave Marion County a population of 30,776 people. This means that Twin had 1.3% of the county's total population, making it Marion's 7th most populous community.
At the same time, Alabama had a population of 4,779,736 people.
When the Census Bureau conducts a census for a town like Twin, 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 town.
Things like the population, area and housing for Twin reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Twin 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 Twin has a total area of 3.37 square miles [8.7 km²].
Marion County has a land area of 742 square miles [1,922.5 km²]. At 3.37 square miles [8.7 km²], Twin has 0.45% 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: 33° 59' 32" (or 33.99°) [Map]
Lon: -87° 51' 8" (or -87.85°)
Population Density ...
Using the population (399 people) and land area (3.37 square miles [8.7 km²]) values from the 2010 Census, Twin had a population density of 118.3 people per square mile [45.66 people/km²].
Housing Units ...
At the time of the 2010 Census, Twin had 181 Housing Units<3> and with its population of 399 people, this averages 2.2 people per Housing Unit.
The 2010 Census shows Twin had a land area of 3.37 square miles [8.7 km²]. This translates to 53.6 Housing Units per square mile [20.71 housing units/km²].
Marion County ...
The community of Twin is located in Marion County.
The county had a population of 30,776 people at the 2010 Census. With it's population of 399 people, Twin represented 1.3% of the county's total.
In addition, where the town of Twin has a population density of 118.3 people per square mile [45.66 people/km²], Marion County averages 41.46 people per square mile [16.01 people/km²].
For more information, please visit our Census Page for Marion County.
Population Rings for Twin ...
To help identify the number of people who live in Twin and the surrounding area, we have drawn concentric rings centered on Twin. We counted the number of communities within each ring and summed their populations.<4>
| Radius ||No of|
|5 mi [8 km]||4||3,768||-2.16%|
|10 mi [16 km]||7||9,023||-2.76%|
|15 mi [24 km]||10||15,959||-2.28%|
|20 mi [32 km]||18||27,488||-2.39%|
|25 mi [40 km]||25||35,903||-2.28%|
|30 mi [48 km]||30||39,323||-2.28%|
US Census QuickFacts ...
The Census Bureau has created documents containing demographic information called QuickFacts. Unfortunately, the Census Bureau has not created a QuickFact that is specific to Twin.
A Census QuickFact is available for Marion County (QF-01093).
Below are QuickFacts for the counties that border Marion County.
Miscellaneous Information for Twin ...
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 Marion County or the town of Twin:
The GNIS Codes ...
The current system of identification is called the Geographic Names Information System (GNIS). The following GNIS codes relate to Twin:
GNIS ID for Twin: 2424942
GNIS ID for Marion County: 161573
GNIS ID for Alabama: 1779775
The FIPS Codes ...
An earlier (and largely obsolete) identification method was called the Federal Information Processing Standard (FIPS):
State Code: 01 (Alabama)
County Code: 093 (Marion County)
Place Code: 77352 (Twin)
State & County Code: 01/093 (Alabama / Marion County)
State & Place Code: 01/77352 (Alabama / Twin)
Misc. Census Codes ...
Twin is located in Census Region #3 (the South Region) and Division #6 (the East South-Central Division).
For more information about the various Federal identification codes, please visit our Misc Page for Twin.
|<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 2015.|
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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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For additional information, please visit our Glossary for Twin.