Census Data for Twin
Population ...
The most recent Census Estimate<1> was for 2019 and it gave Twin a population of 387 people.
The last Decennial Census<2> was in 2010, which gave 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.
Area ...
The 2010 Census shows that the sampling area 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.
- Continue Reading ...
- 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 defines the sampling area (usually 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 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 different, it's best to check with the U.S. Census Bureau to resolve any difference between the two.
- 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: 33° 59' 32" (or 33.99°)
- Lon: -87° 51' 8" (or -87.85°)
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.
- Continue Reading ...
- 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<4>.
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.
Census-to-Census Observations ...
Introduction ...
When the Census Bureau takes a census count (or enumeration) for Twin, 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 Twin. It's important to note that from one Census to the next, the shape and location of the polygon can change.
- Continue Reading ...
- Although we don't have specific information about the shape of the polygon for Twin or how it changed has over time, there is some information that can give us some hints. For example, since the shape of the sampling area is directly related to the shape of the polygon, any change to area probably indicates a new shape for the polygon.
- If you need precision or details about the methodology of the Census, you should visit the U.S. Census Bureau for a definitive answer.
Location ...
While generally coinciding with the GPS location (latitude/longitude) of Twin, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Twin.
- Continue Reading ...
- For the 2010 Censuses, the location was given as:
Lat: 33.992314° (or 33°59'32" N)
- The U.S. Geological Survey (USGS) and the U.S. Board on Geographic Names (BGN) have assigned a unique GNIS identifier (#2424942) to Twin. This identifier also marks a GPS point on the map, and that point lies within the boundaries of Twin. The GNIS point has been mapped to the latitude/longitude:
- Lat: 34.008799° (or 34°0'31" N)
- Lon: -87.853284° (or -87°51'11" W)
- The GPS location given for the 2010 Census lies 6,017 feet to the south<5> of the point given by the GNIS for Twin. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Twin.
Lon: -87.852295° (or -87°51'8" W)
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 used one (or more) of the following identifiers when referring to either Marion County or the town of Twin:
- The GNIS Codes ...
- 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.
Off-the-Road Links ...
Unfortunately, we don't know of a website for Twin. If you can help, please contact us through our Feedback Page.
The official website for Marion County: www.sonet.net/marioncounty/
The official website for State of Alabama: https://www.alabama.gov/
The official website of the U.S. Census Bureau
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 2019. |
| <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. |
| <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). |
| <4> | If you're interested in how the shape of Alabama's counties, including Marion, have changed over time, we recommend the Atlas of Historical County Boundaries. |
| <5> | The calculated bearing (or angle) to the GNIS point is 182 degrees and a distance of 6,017 feet. |