HomeWisconsinDoor CountySister Bay
Sister Bay, Wisconsin: commercial real estate data.
Sister Bay is a Census village of 1,044 people across 2.67 square miles of land, in Door County. Median household income is $71,169, 50.3 percent of occupied homes are owned, and the SBA record carries 6 7(a) approvals to borrowers here worth $1.8 m since FY2020.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Sister Bay
What Sister Bay is
- Census place typevillage
- Land area2.67 sq mi
- Water area0.99 sq mi
- Population per square mile of land391 plus or minus 86
- County holding the largest share of its areaDoor County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Sister Bay
How many people live in Sister Bay
- Population1,044 plus or minus 230
- Median age61.0 plus or minus 14.7
- Population under 18183 plus or minus 92
- Share under 1817.5 percent plus or minus 7.9
- Population 65 and over480 plus or minus 102
- Share 65 and over46.0 percent plus or minus 14.1
- Households575
- Family households319 plus or minus 97
- Share of households that are families55.5 percent plus or minus 13.3
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Sister Bay
Income and work in Sister Bay
- Median household income$71,169
- Per capita income$51,572 plus or minus $14,160
- Civilian labor force412 plus or minus 95
- Employed409 plus or minus 94
- Unemployed3 plus or minus 5
- Unemployment rate0.7 percent plus or minus 1.2
- Adults 25 and over829
- Adults 25 and over with a high school diploma or higher99.0 percent
- Adults 25 and over with a bachelor degree or higher51.3 percent
- Adults 25 and over with a graduate degree21.2 percent plus or minus 8.1
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Sister Bay
Housing in Sister Bay
- Housing units1,408
- Occupied units575
- Vacant units833
- Vacancy rate59.2 percent
- Owner occupied289 plus or minus 71
- Renter occupied286 plus or minus 88
- Ownership rate50.3 percent
- Median owner-occupied home value$392,200
- Median gross rent, monthly$1,168 plus or minus $557
- Annual rent as a share of median income19.7 percent plus or minus 9.8
- Single family units620
- Share single family44.0 percent
- Units in buildings of two or more788
- Share in buildings of two or more56.0 percent
- Mobile homes0
- Median year structure built1993
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Sister Bay
How Sister Bay gets to work
- Workers 16 and over who commute322 plus or minus 90
- Commuting under 15 minutes170 plus or minus 68
- Share commuting under 15 minutes52.8 percent plus or minus 15.3
- Commuting 30 minutes or more32 plus or minus 28
- Share commuting 30 minutes or more9.9 percent plus or minus 8.3
- Drove alone68.6 percent plus or minus 13.7
- Carpooled2.7 percent plus or minus 2.4
- Public transport0.0 percent
- Walked7.2 percent plus or minus 3.3
- Worked from home20.3 percent plus or minus 4.4
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Sister Bay
SBA loans in Sister Bay (7(a))
- Approvals6
- Gross approval$1,785,000
- Average approval$297,500
- Median approval$259,650
- Largest approval$658,700
- Jobs supported61
- Jobs per approval10.2
- Loans with a final outcome3
- Paid in full3
- Charged off0
- Median term120 months
- Share on real estate terms of 20 years or more16.7 percent
- Share to franchises0.0 percent
- Distinct lenders2
- Distinct industries by NAICS5
Counted by borrower city: approvals to borrowers whose address is in Sister Bay, in any county, FY2020 to FY2026. Only 3 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Sister Bay
SBA loans in Sister Bay (504)
- Approvals5
- Gross approval$5,702,000
- Average approval$1,140,400
- Median approval$665,000
- Largest approval$2,915,000
- Jobs supported15
- Loans with a final outcome1
- Charged off0
- Median term300 months
- Distinct CDCs1
Counted by borrower city: approvals to borrowers whose address is in Sister Bay, in any county, FY2010 to FY2026. Only 1 loan has reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
Sister Bay
Flood risk in Sister Bay
- NFIP communityVillage of Sister Bay
- NFIP community number550030
- Participating in the NFIPNo
- Community Rating System classNone
- Currently effective map date05/08/24
The Village of Sister Bay does not participate in the National Flood Insurance Program as community 550030 and carries no Community Rating System class, so no CRS premium discount applies to it.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
Door County, not Sister Bay
Door County context, not Sister Bay figures
- Establishments in Door County1,292
- Covered employment, Door County14,223
- Average annual pay, Door County$45,594
- Housing units permitted, Door County313
Every figure in this section is published for Door County as a whole and is not a measurement of Sister Bay.
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.
Coverage
What this page does not hold.
Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Common questions
Sister Bay questions, answered from the record.
How many people live in Sister Bay, Wisconsin?
1,044, in 575 households. Sister Bay village covers 2.67 square miles of land, which is 391 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Sister Bay in?
Door County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in Sister Bay?
$71,169. The median owner-occupied home is valued at $392,200. Median gross rent is $1,168 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
How much SBA lending goes to Sister Bay businesses?
6 7(a) approvals totaling $1.8 m since FY2020, across 2 lenders, median approval $259,650, plus 5 504 approvals worth $5.7 m since FY2010. These count approvals to borrowers whose address is in Sister Bay, not projects sited inside the place boundary, and they are approvals recorded in the release rather than loans disbursed.
Do SBA loans to Sister Bay borrowers get paid back?
No rate is published for Sister Bay. Only 3 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published. The counts are shown instead.
Is Sister Bay in the National Flood Insurance Program?
No, it is listed but not participating. Sister Bay appears in the FEMA Community Status Book as Sister Bay, village of, community 550030, with no Community Rating System class, so no CRS discount applies. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.
Are the county figures on this page Sister Bay figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Door County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Sister Bay.
Is zoning published for Sister Bay?
No. Nothing on this page presents parcel level zoning.
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