Prairie du Sac, WI Profile: Facts, Map & Data


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Prairie du Sac, Wisconsin - Basic Facts

The Village of Prairie du Sac had a population of 4,127 as of July 1, 2017. Prairie du Sac ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Wisconsin. See peer rankings below.

The primary coordinate point for Prairie du Sac is located at latitude 43.2908 and longitude -89.7321 in Sauk County. The formal boundaries for the Village of Prairie du Sac (see map below) encompass a land area of 1.69 sq. miles and a water area of 0.12 sq. miles. Sauk County is in the Central time zone (GMT -6). The elevation is 774 feet.

The Village of Prairie du Sac (GNIS ID: 1583973) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Beneath the boundary map are tables with Prairie du Sac population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Prairie du Sac: Sauk Prairie.

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Village of Prairie du Sac, WI Boundary Map

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Prairie du Sac, WI Data & Demographics (As of July 1, 2017)


Total Population 4,127
Daytime Population: Workers 3,376
Daytime Population: Residents 1,777
Total Daytime Population (TDP) 5,153
Ratio TDP/Total Population1 1.25
Population in Households 4,049
Population in Familes 3,179
Population in Group Qrtrs 78
Population Density2 2,447
Diversity Index3 24


Median Household Income $58,095
Average Household Income $72,905
Per Capita Income $30,242


Total Housing Units 1,785 (100%)
Owner Occupied HU 990 (55.5%)
Renter Occupied HU 717 (40.2%)
Vacant Housing Units 78 ( 4.4%)
Median Home Value $204,737
Average Home Value $229,975


Total Households 1,707
Average Household Size 2.37
Family Households 1,070
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.63% 0.76%
Households 0.58% 0.74%
Families 0.08% 0.7%
Median Household Income   1.4%
Per Capita Income   2.45%

Prairie du Sac, WI - Peer Comparisons by Rank and Percentile

The table below compares Prairie du Sac to the other 774 incorporated cities, towns and CDPs in Wisconsin by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 168 78th
Population Density # 32 96th
Diversity Index # 172 78th
Median Household Income # 288 63rd
Per Capita Income # 237 70th

Additional comparisons and rankings can be made with a VERY EASY TO USE Wisconsin Census Data Comparison Tool.

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