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Viola, Tennessee

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Census Data for Viola ...

Population ...

The most recent Census Estimate<1> was for 2018 and it gave Viola a population of 133 people.

The last Decennial Census<2> was in 2010, which gave Viola a population of 131 people.

The town of Viola is located in Warren County. The 2010 Census gave Warren County a population of 39,839 people. This means that Viola had 0.33% of the county's total population, making it Warren's 4th most populous community.

At the same time, Tennessee had a population of 6,346,105 people.

Area ...

When the Census Bureau conducts a census for a town like Viola, 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 town.

Things like the population, area and housing for Viola reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Viola 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 Viola has a total area of 0.17 square miles [0.4 km²].

Warren County has a land area of 432.7 square miles [1,120.6 km²]. At 0.17 square miles [0.4 km²], Viola has 0.04% 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:   35° 32' 19"   (or 35.54°)             [Map]

Lon:   -85° 51' 38"   (or -85.86°)

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 (131 people) and land area (0.17 square miles [0.4 km²]) values from the 2010 Census, Viola had a population density of 766 people per square mile [295.8 people/km²].

In comparison, the 2000 Census shows Viola had a population of 129 people and a land area of 0.17 square miles [0.4 km²]. This gives a population density of 775 people per square mile [299.6 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 Viola. 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 changes can be found in the section Census-to-Census Observations ... (see below).

Housing Units ...

At the time of the 2010 Census, Viola had 67 Housing Units<3> and with its population of 131 people, this averages 1.96 people per Housing Unit.

The 2010 Census shows Viola had a land area of 0.17 square miles [0.4 km²]. This translates to 391.8 Housing Units per square mile [151.3 housing units/km²].

From the Census of 2000: Viola had 59 Housing Units, a population of 129 people and a land area of 0.17 square miles [0.4 km²]. This gives a density of 2.19 people per Housing Unit and 354.9 Housing Units per square mile [137 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 Viola and you need to be careful when comparing between the censuses. More information about the nature of these the changes can be found in the section called Census-to-Census Observations ... (see below).

Warren County ...

The community of Viola is located in Warren County.

The county had a population of 39,839 people at the 2010 Census. With it's population of 131 people, Viola represented 0.33% of the county's total.

In addition, where the town of Viola has a population density of 766 people per square mile [295.8 people/km²], Warren County averages 92.1 people per square mile [35.55 people/km²].

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

Population Rings for Viola ...

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

  Radius   No of
    Communities    
2018
    Population    
Change
  Since 2010    
5 mi   [8 km]2845+2.42%
10 mi   [16 km]31,873+0.16%
15 mi   [24 km]828,026+3.27%
20 mi   [32 km]1131,814+2.28%
25 mi   [40 km]1759,821+2.81%
30 mi   [48 km]2685,275+3%

Census-to-Census Observations ...

Introduction ...

When the Census Bureau takes a census count (or enumeration) for Viola, 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 Viola. 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 2.86% larger than the 2000 Census.

The 2010 Census shows that the total area for Viola was 0.17 square miles [0.4 km²]. Of this total, only a minor amount of the area is covered by water.

The 2000 Census shows a total area of 0.17 square miles [0.4 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 Viola, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Viola.

For the 2010 Census, the location was given as:

Lat:   35.538708°   (or 35°32'19" N)             [Map]

Lon:   -85.860575°   (or -85°51'38" W)

For the 2000 Census, the location given was:

Lat:   35.538085°   (or 35°32'17" N)             [Map]

Lon:   -85.860606°   (or -85°51'38" W)

The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 227.3 feet to the north<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 (#2406805) to Viola. This identifier also marks a GSP point on the map, and that point lies within the boundaries of Viola. The GNIS point has been mapped to the latitude/longitude:

Lat:   35.538729°   (or 35°32'19" N)             [Map]

Lon:   -85.860665°   (or -85°51'38" W)

The GSP location given for the 2010 Census lies 27.78 feet to the east<6> of the point given by the GNIS for Viola. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Viola.

Miscellaneous Information for Viola ...

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 Warren County or the town of Viola:

The GNIS Codes ...

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

GNIS ID for Viola: 2406805

GNIS ID for Warren County: 1639796

GNIS ID for Tennessee: 1325873

The FIPS Codes ...

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

State Code: 47 (Tennessee)

County Code: 177 (Warren County)

Place Code: 77400 (Viola)

State & County Code: 47/177 (Tennessee / Warren County)

State & Place Code: 47/77400 (Tennessee / Viola)

Misc. Census Codes ...

Viola 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 Viola.

Other Roadside Stops ...

Find a Community located in Tennessee

About Warren County

About Tennessee

Off-the-Road Links ...

The official website of the U.S. Census Bureau


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

The official website for State of Tennessee: https://www.tn.gov/


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.
<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>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.
<5>The calculated bearing (or angle) to the 2010 Census location is 357 degrees and a distance of 227.3 feet.
<6>The calculated bearing (or angle) to the GNIS point is 253 degrees and a distance of 27.78 feet.




 

 

 

 

 


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This page was last modified: 08 Jan 2020