Sister Bay
Property Data

Door County, Wisconsin

Explore accurate parcel and ownership records,
directly sourced from county assessors.

Door County

ZIP Codesby Total Population

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Total Population
2,1582,158

DistributionTotal Population

No data available

Demographics

Total Population

2,158

Median Age

60.3

Population Under 18

15.4%

Population 65+

42.9%

Total Households

1,121

Average Household Size

1.87

Sister Bay, WI housing and demographic statistics

ZIP/ZCTA areas can cross city and county boundaries. Each row describes its ZIP/ZCTA area, not the city as a whole. These values are not combined into a city estimate.

Individual ZIP/ZCTA estimates associated with Sister Bay, WI
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
542342,158$74,583$1,32869.0%

Source: U.S. Census Bureau American Community Survey (ACS), 2020–2024 five-year estimates, via Realie. Measurement period: –. Published by the Census Bureau on ; published by Realie on . These are five-year estimates, not a measurement of current conditions. — indicates unavailable or suppressed data.

Area property statistics

Recorded property characteristics and residential parcel-sale records for Sister Bay, WI. Sale amounts describe recorded transfers, not asking prices or appraisals. Each measure uses records with that information available.

Sale records use the AVM's residential, amount, floor-area, year-built, price-per-area, deed, buyer-relationship and distress filters. Known multi-parcel deals are also excluded. Unknown package flags are not proof of a single-parcel sale. Counts represent eligible parcel sale records. Recorded annual averages require at least 10 eligible sales. Projections must have enough history and pass checks against earlier recorded sales. Recent sales can be underreported; different coverage between years can affect the changes.

City measurements cover the selected county's portion of the city.

Annual sales comparison

Calendar 2025 recorded sales versus calendar 2026 model projections. Both years cover January 1–December 31. Change compares the 2026 projection with the recorded 2025 value. Annual average amounts weight each month by its sales count; they are not monthly medians.

Calendar-year sales comparison
Metric20252026 projectedChange (%)
Residential sale records12Recorded——
Average recorded sale amount$831,825Recorded——

Projections are not confirmed transactions or property valuations. Recent sales can be underreported; different coverage between years can affect the change. Unsupported values remain unavailable. Ranges reflect historical model errors, not confidence intervals. Annual comparison calculated . Assumed observation cutoff: June 2026; not verified completeness.

Recorded property statistics

Reported property statistics for Sister Bay, WI
MeasureSister Bay, WIDoor County, WI
Median recorded sale amount$710,000$444,100
Recorded amount, 10th percentile$350,000$252,200
Recorded amount, 90th percentile$925,000$1,100,000
Average recorded floor area (sq ft)1,7571,834
Average recorded bedrooms2.72.8
Average recorded bathrooms2.12
Median year built19891987
Condominium share of properties33.5%15.4%

Sister Bay, WI: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 22, 2026. Calculated . Published . Dataset last refreshed: .

Door County, WI: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 22, 2026. Calculated . Published . Dataset last refreshed: .

Source: Realie property-record aggregates. Input publication and calculation dates do not establish complete transaction coverage. Missing measures are shown as — or omitted.

Other recent-period estimates

These use different periods from the calendar-year comparison. Estimates extend parcel-record counts and recorded amounts; they are not confirmed current transactions or individual-property values.

No supported recent-period estimates are available for this area. Recorded statistics above remain available.

Transaction coverage has not been verified. Known multi-parcel deals are excluded; missing package flags do not establish that every remaining sale covers one parcel. Amount change compares monthly record medians, not the appreciation of the same homes. Ranges reflect historical model errors; they are not confidence intervals and can exclude the point estimate. Assumed observation cutoff: June 2026; not a verified completeness date.

Properties in Sister Bay

Showing page 12 of properties

10521 South Appleport Lane

Sister Bay, WI 54234

10522 Fieldcrest Road

Sister Bay, WI 54234

10523 South Highland Road

Sister Bay, WI 54234

10524 Cherrywood Court

Sister Bay, WI 54234

10524 South Appleport Lane

Sister Bay, WI 54234

10525 Judith Blazer Drive

Sister Bay, WI 54234

10528 Bay Ridge Place Unit A5

Sister Bay, WI 54234

10528 Bay Ridge Place Unit A1

Sister Bay, WI 54234

10528 Bay Ridge Place Unit A2

Sister Bay, WI 54234

10528 Bay Ridge Place Unit A3

Sister Bay, WI 54234

10528 Bay Ridge Place Unit A8

Sister Bay, WI 54234

10528 Bay Ridge Place Unit A6

Sister Bay, WI 54234

10528 Bay Ridge Place Unit A4

Sister Bay, WI 54234

10528 Bay Ridge Place Unit A7

Sister Bay, WI 54234

10528 South Appleport Lane

Sister Bay, WI 54234

10529 Fieldcrest Road

Sister Bay, WI 54234

10529 Judith Blazer Drive

Sister Bay, WI 54234

10529 South Highland Road

Sister Bay, WI 54234

10530 Cherrywood Court

Sister Bay, WI 54234

10530 Fieldcrest Road

Sister Bay, WI 54234

10530 South Appleport Lane

Sister Bay, WI 54234

10532 South Appleport Lane

Sister Bay, WI 54234

10533 Cherrywood Court

Sister Bay, WI 54234

10533 Koessl Lane Unit 103

Sister Bay, WI 54234

10533 Koessl Lane Unit 101

Sister Bay, WI 54234

10533 Koessl Lane Unit 104

Sister Bay, WI 54234

10533 Koessl Lane Unit 102

Sister Bay, WI 54234

10534 Cherrywood Court

Sister Bay, WI 54234

10534 South Highland Road

Sister Bay, WI 54234

10535 Fieldcrest Road

Sister Bay, WI 54234

10535 Koessl Lane Unit 201

Sister Bay, WI 54234

10535 Koessl Lane Unit 204

Sister Bay, WI 54234

10535 Koessl Lane Unit 202

Sister Bay, WI 54234

10535 Koessl Lane Unit 203

Sister Bay, WI 54234

10535 Stock Lane

Sister Bay, WI 54234

10536 Fieldcrest Road

Sister Bay, WI 54234

10536 Fieldcrest Road

Sister Bay, WI 54234

10536 South Appleport Lane

Sister Bay, WI 54234

10537 Koessl Lane Unit 301

Sister Bay, WI 54234

10537 Koessl Lane Unit 304

Sister Bay, WI 54234

10537 Koessl Lane Unit 303

Sister Bay, WI 54234

10537 Koessl Lane Unit 302

Sister Bay, WI 54234

10538 Bay Ridge Place Unit B4

Sister Bay, WI 54234

10538 Bay Ridge Place Unit B8

Sister Bay, WI 54234

10538 Bay Ridge Place Unit B7

Sister Bay, WI 54234

10538 Bay Ridge Place Unit B2

Sister Bay, WI 54234

10538 Bay Ridge Place Unit B6

Sister Bay, WI 54234

10538 Bay Ridge Place Unit B3

Sister Bay, WI 54234

10538 Bay Ridge Place Unit B1

Sister Bay, WI 54234

10538 Bay Ridge Place Unit B5

Sister Bay, WI 54234

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