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Williams Bay, Wisconsin

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Census Data for Williams Bay ...

Population ...

The most recent Census Estimate<1> was for 2017 and it gives Williams Bay a population of 2,597 people.

The last Decennial Census<2> was in 2010, giving Williams Bay a population of 2,564 people.

The village of Williams Bay is located in Walworth County. The 2010 Census gave Walworth County a population of 102,228 people. This means that Williams Bay had 2.51% of the county's total population, making it Walworth's 14th most populous community.

At the same time, Wisconsin had a population of 5,686,986 people, meaning that Williams Bay had 0.05% of the total population of Wisconsin - making it the state's 346th most populous community.

Area ...

When the Census Bureau conducts a census for a village like Williams Bay, 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 village.

Things like the population, area and housing for Williams Bay reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Williams Bay 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 Williams Bay has a total area of 2.8 square miles [7.2 km²].

Walworth County has a land area of 555 square miles [1,437.8 km²]. At 2.8 square miles [7.2 km²], Williams Bay has 0.5% 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:   42° 34' 43"   (or 42.58°)             [Map]

Lon:   -88° 32' 44"   (or -88.55°)

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 (2,564 people) and land area (2.8 square miles [7.2 km²]) values from the 2010 Census, Williams Bay had a population density of 916 people per square mile [353.9 people/km²].

In comparison, the 2000 Census shows Williams Bay had a population of 2,415 people and a land area of 2.65 square miles [6.9 km²]. This gives a population density of 697 people per square mile [269.2 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 Williams Bay. 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, Williams Bay had 1,985 Housing Units<3> and with its population of 2,564 people, this averages 1.29 people per Housing Unit.

The 2010 Census shows Williams Bay had a land area of 2.8 square miles [7.2 km²]. This translates to 709 Housing Units per square mile [274 housing units/km²].

From the Census of 2000: Williams Bay had 1,772 Housing Units, a population of 2,415 people and a land area of 2.65 square miles [6.9 km²]. This gives a density of 1.36 people per Housing Unit and 511 Housing Units per square mile [197.5 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 Williams Bay and you need to be careful when comparing results between the censuses. More information about the changes can be found in the section called Census-to-Census Observations ... (see below).

Walworth County ...

The community of Williams Bay<4> is located in Walworth County.

The county had a population of 102,228 people at the 2010 Census. With it's population of 2,564 people, Williams Bay represented 2.51% of the county's total.

In addition, where the village of Williams Bay has a population density of 916 people per square mile [353.9 people/km²], Walworth County averages 184.2 people per square mile [71.1 people/km²].

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

Population Rings for Williams Bay ...

To help identify the number of people who live in Williams Bay and the surrounding area, we have drawn concentric rings centered on Williams Bay. We counted the number of communities within each ring and summed their populations.<5>

  Radius   No of
    Communities    
2017
    Population    
Change
  Since 2010    
5 mi   [8 km]829,485+1.44%
10 mi   [16 km]1966,077-6.29%
15 mi   [24 km]34120,696-3.12%
20 mi   [32 km]53240,390-1.36%
25 mi   [40 km]88491,441+0.66%
30 mi   [48 km]134954,616+0.63%

Census-to-Census Observations ...

Introduction ...

When the Census Bureau takes a census count (or enumeration) for Williams Bay, 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 Williams Bay. 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 19.24% smaller than the 2000 Census.

The 2010 Census shows that the total area for Williams Bay was 2.8 square miles [7.2 km²]. Of this total, only a minor amount of the area is covered by water.

The 2000 Census shows a total area of 3.46 square miles [9 km²]. Of this total, 2.65 square miles [6.9 km²] is land, with the balance (29.21%) being water (0.82 square miles [2.1 km²]).

Location ...

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

For the 2010 Census, the location was given as:

Lat:   42.578838°   (or 42°34'43" N)             [Map]

Lon:   -88.545631°   (or -88°32'44" W)

For the 2000 Census, the location given was:

Lat:   42.574208°   (or 42°34'27" N)             [Map]

Lon:   -88.543690°   (or -88°32'37" W)

The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 1,766 feet to the north<6> 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 (#1584439) to Williams Bay. This identifier also marks a GSP point on the map, and that point lies within the boundaries of Williams Bay. The GNIS point has been mapped to the latitude/longitude:

Lat:   42.576405°   (or 42°34'35" N)             [Map]

Lon:   -88.542878°   (or -88°32'34" W)

The GSP location given for the 2010 Census lies 1,154 feet to the northwest<7> of the point given by the GNIS for Williams Bay. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Williams Bay.

Miscellaneous Information for Williams Bay ...

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 Walworth County or the village of Williams Bay:

The GNIS Codes ...

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

GNIS ID for Williams Bay: 1584439

GNIS ID for Walworth County: 1581123

GNIS ID for Wisconsin: 1779806

The FIPS Codes ...

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

State Code: 55 (Wisconsin)

County Code: 127 (Walworth County)

Place Code: 87200 (Williams Bay)

State & County Code: 55/127 (Wisconsin / Walworth County)

State & Place Code: 55/87200 (Wisconsin / Williams Bay)

Misc. Census Codes ...

Williams Bay is located in Census Region #2 (the Midwest Region) and Division #3 (the East North-Central Division).

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

Other Roadside Stops ...



Index of Cities, Towns and Villages for Wisconsin

About Walworth County

About Wisconsin

Off-the-Road Links ...

The official website of the U.S. Census Bureau


The official website for Williams Bay: www.williamsbay.org/

The official website for Walworth County: www.co.walworth.wi.us/

The official website for State of Wisconsin: www.wisconsin.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 2017.

- Return to Citation

<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>It's a common practice for mapmakers to remove the apostrophe from possessive names. So Williams Bay may originally have been William's Bay. Sometimes the trailing 's' might be dropped altogether, in which case Williams Bay might be written as William Bay. For more information, please visit our Genealogy Helper Page for Williams Bay.

- Return to Citation

<5>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.

- Return to Citation

<6>The calculated bearing (or angle) to the 2010 Census location is 17 degrees and a distance of 1,766 feet.

- Return to Citation

<7>The calculated bearing (or angle) to the GNIS point is 39 degrees and a distance of 1,154 feet.

- Return to Citation


For additional information, please visit our Glossary for Williams Bay.



 
 
 

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This page was last modified: 16 Jul 2018
By John Hall