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Spring Green, Wisconsin

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Census Data for Spring Green ...

Population ...

The most recent Census Estimate<1> was for 2018 and it gave Spring Green a population of 1,641 people.

The last Decennial Census<2> was in 2010, which gave Spring Green a population of 1,628 people.

The village of Spring Green is located in Sauk County. The 2010 Census gave Sauk County a population of 61,976 people. This means that Spring Green had 2.63% of the county's total population, making it Sauk's 9th most populous community.

At the same time, Wisconsin had a population of 5,686,986 people, meaning that Spring Green had 0.03% of the total population of Wisconsin - making it the state's 534th most populous community.

Area ...

When the Census Bureau conducts a census for a village like Spring Green, 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 village.

Things like the population, area and housing for Spring Green reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Spring Green 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 Spring Green has a total area of 1.8 square miles [4.7 km²].

Sauk County has a land area of 830 square miles [2,152 km²]. At 1.8 square miles [4.7 km²], Spring Green has 0.22% 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:   43° 10' 40"   (or 43.18°)             [Map]

Lon:   -90° 4' 11"   (or -90.07°)

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 (1,628 people) and land area (1.8 square miles [4.7 km²]) values from the 2010 Census, Spring Green had a population density of 902 people per square mile [348.4 people/km²].

In comparison, the 2000 Census shows Spring Green had a population of 1,444 people and a land area of 1.32 square miles [3.4 km²]. This gives a population density of 1,097 people per square mile [423.8 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 Spring Green. You need to be careful when making such a comparison, the differences are likely to lead to an apple-to-oranges comparison. More information about the changes can be found in the section Census-to-Census Observations ... (see below).

Housing Units ...

At the time of the 2010 Census, Spring Green had 753 Housing Units<3> and with its population of 1,628 people, this averages 2.16 people per Housing Unit.

The 2010 Census shows Spring Green had a land area of 1.8 square miles [4.7 km²]. This translates to 417.4 Housing Units per square mile [161.2 housing units/km²].

From the Census of 2000: Spring Green had 624 Housing Units, a population of 1,444 people and a land area of 1.32 square miles [3.4 km²]. This gives a density of 2.31 people per Housing Unit and 474.3 Housing Units per square mile [183.1 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 Spring Green and you need to be careful when comparing between the censuses. More information about the changes can be found in the section called Census-to-Census Observations ... (see below).

Sauk County ...

The community of Spring Green is located in Sauk County.

The county had a population of 61,976 people at the 2010 Census. With it's population of 1,628 people, Spring Green represented 2.63% of the county's total.

In addition, where the village of Spring Green has a population density of 902 people per square mile [348.4 people/km²], Sauk County averages 74.6 people per square mile [28.8 people/km²].

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

Population Rings for Spring Green ...

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

  Radius   No of
  Since 2010    
5 mi   [8 km]33,764+3.78%
10 mi   [16 km]1212,023+1.94%
15 mi   [24 km]2830,440+1.44%
20 mi   [32 km]5165,743+2.03%
25 mi   [40 km]84107,775+2.77%
30 mi   [48 km]120202,959+5.64%

Census-to-Census Observations ...

Introduction ...

When the Census Bureau takes a census count (or enumeration) for Spring Green, 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 Spring Green. 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 37.12% larger than the 2000 Census.

The 2010 Census shows that the total area for Spring Green was 1.8 square miles [4.7 km²]. Of this total, only a minor amount of the area is covered by water.

The 2000 Census shows a total area of 1.32 square miles [3.4 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 Spring Green, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Spring Green.

For the 2010 Census, the location was given as:

Lat:   43.177878°   (or 43°10'40" N)             [Map]

Lon:   -90.069769°   (or -90°4'11" W)

For the 2000 Census, the location given was:

Lat:   43.177268°   (or 43°10'38" N)             [Map]

Lon:   -90.067277°   (or -90°4'2" W)

The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 698 feet to the west<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 (#1584196) to Spring Green. This identifier also marks a GSP point on the map, and that point lies within the boundaries of Spring Green. The GNIS point has been mapped to the latitude/longitude:

Lat:   43.175547°   (or 43°10'31" N)             [Map]

Lon:   -90.067346°   (or -90°4'2" W)

The GSP location given for the 2010 Census lies 1,066 feet to the northwest<6> of the point given by the GNIS for Spring Green. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Spring Green.

Miscellaneous Information for Spring Green ...

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 Sauk County or the village of Spring Green:

The GNIS Codes ...

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

GNIS ID for Spring Green: 1584196

GNIS ID for Sauk County: 1581115

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: 111 (Sauk County)

Place Code: 76025 (Spring Green)

State & County Code: 55/111 (Wisconsin / Sauk County)

State & Place Code: 55/76025 (Wisconsin / Spring Green)

Misc. Census Codes ...

Spring Green 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 Spring Green.

Other Roadside Stops ...

Search for a Community in Wisconsin

About Sauk County

About Wisconsin

Off-the-Road Links ...

The official website of the U.S. Census Bureau

The official website for Spring Green:

The official website for Sauk County:

The official website for State of Wisconsin:

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 71 degrees and a distance of 698 feet.
<6>The calculated bearing (or angle) to the GNIS point is 37 degrees and a distance of 1,066 feet.






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This page was last modified: 26 Jan 2020