A Gazetteer for the United States and Canada
Town of Waukesha, Wisconsin
Census Data for Waukesha ...
The most recent Census Estimate<1> was for 2017 and it gave Waukesha a population of 8,802 people.
The last Decennial Census<2> was in 2010, which gave Waukesha a population of 9,133 people.
The community of Waukesha is located in Waukesha County. The 2010 Census gave Waukesha County a population of 389,891 people. This means that Waukesha had 2.34% of the county's total population, making it Waukesha's 10th most populous community.
When the Census Bureau conducts a census for a community like Waukesha, 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 community.
Things like the population, area and housing for Waukesha reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Waukesha 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 Waukesha has a total area of 21.51 square miles [55.7 km²]. Of this total, 21.24 square miles [55 km²] is land, with the balance (1.26%) being water (0.27 square miles [0.7 km²]).
Waukesha County has a land area of 549 square miles [1,423.4 km²]. At 21.24 square miles [55 km²], Waukesha has 3.86% 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: 42° 57' 37" (or 42.96°) [Map]
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 (9,133 people) and land area (21.24 square miles [55 km²]) values from the 2010 Census, Waukesha had a population density of 424.6 people per square mile [163.9 people/km²].
In comparison, the 2000 Census shows Waukesha had a population of 8,596 people and a land area of 22.88 square miles [59.3 km²]. This gives a population density of 374.1 people per square mile [144.5 people/km²]
NOTE: Be aware that when comparing population density between the 2000 Census and the 2010 Census, there were changes in the sampling area for Waukesha. You need to be careful when making such a comparison, the differences are likely to lead to a questionable 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, Waukesha had 3,382 Housing Units<3> and with its population of 9,133 people, this averages 2.7 people per Housing Unit.
The 2010 Census shows Waukesha had a land area of 21.24 square miles [55 km²]. This translates to 157.2 Housing Units per square mile [60.7 housing units/km²].
From the Census of 2000: Waukesha had 2,945 Housing Units, a population of 8,596 people and a land area of 22.88 square miles [59.3 km²]. This gives a density of 2.92 people per Housing Unit and 128.2 Housing Units per square mile [49.49 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 Waukesha and you need to be careful when comparing values between the censuses. More information about these differences can be found in the section called Census-to-Census Observations ... (see below).
Waukesha County ...
The community of Waukesha is located in Waukesha County.
The county had a population of 389,891 people at the 2010 Census. With it's population of 9,133 people, Waukesha represented 2.34% of the county's total.
In addition, where the community of Waukesha has a population density of 424.6 people per square mile [163.9 people/km²], Waukesha County averages 709 people per square mile [273.9 people/km²].
For more information, please visit our Census Page for Waukesha County.
Population Rings for Waukesha ...
To help identify the number of people who live in Waukesha and the surrounding area, we have drawn concentric rings centered on Waukesha. We counted the number of communities within each ring and summed their populations.<4>
Census-to-Census Observations ...
When the Census Bureau takes a census count (or enumeration) for Waukesha, 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 Waukesha. 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 6.37% smaller than the 2000 Census.
The 2010 Census shows that the total area for Waukesha was 21.51 square miles [55.7 km²]. Of this total, 21.24 square miles [55 km²] is land, with the balance (1.26%) being water (0.27 square miles [0.7 km²]).
The 2000 Census shows a total area of 22.98 square miles [59.5 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 Waukesha, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Waukesha.
For the 2010 Census, the location was given as:
Lat: 42.960422° (or 42°57'37" N) [Map]
For the 2000 Census, the location given was:
Lat: 42.978552° (or 42°58'42" N) [Map]
The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 6,642 feet to the south<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 (#1584372) to Waukesha. This identifier also marks a GSP point on the map, and that point lies within the boundaries of Waukesha. The GNIS point has been mapped to the latitude/longitude:
Lat: 42.964457° (or 42°57'52" N) [Map]
The GSP location given for the 2010 Census lies 1,471 feet to the south<6> of the point given by the GNIS for Waukesha. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Waukesha.
Miscellaneous Information for Waukesha ...
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 Waukesha County or the community of Waukesha:
The GNIS Codes ...
The current system of identification is called the Geographic Names Information System (GNIS). The following GNIS codes relate to Waukesha:
GNIS ID for Waukesha: 1584372
The FIPS Codes ...
An earlier (and largely obsolete) identification method was called the Federal Information Processing Standard (FIPS):
State Code: 55 (Wisconsin)
County Code: 133 (Waukesha County)
Place Code: 84275 (Waukesha)
Misc. Census Codes ...
Waukesha 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 Waukesha.
Other Roadside Stops ...
Off-the-Road Links ...
The official website of the U.S. Census Bureau
Unfortunately, we don't know of a website for Waukesha. If you can help, please contact us through our Feedback Page.
The official website for Waukesha County: www.waukeshacounty.gov/
The official website for State of Wisconsin: https://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)
Please keep in mind that we can not guarantee the accuracy or timeliness of the information on this website, so use with care. We encourage you to double-check the information that is critical to you.
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This page was last modified: 04 Jan 2019