Postal Codes

54234 ZIP Code

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ZIP code 54234 covers Sister Bay, Wisconsin, with a population of about 2,130 and a median household income of $72,762.

Population
2,13091 per square mile
Median age
59.420.7 points above the US average
Median household income
$72,762about the Wisconsin median
Poverty rate
15.6%3.2 points above the US average
Typical home value
$528,989up 29% in five years
Median rent
$1,1401.1× the Wisconsin median
Degree or higher
50.6%15.6 points above the US average
Homeownership
68%3 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
181

Where 54234 is

Sister Bay, Wisconsin — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population2,130
Median age59.4
Family households67.5%
Born outside the US1.1%
Speaks a language other than English at home1.2%
White (non-Hispanic)97.6%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino1.4%
Veterans9%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$72,762
Income per person$49,661
Poverty rate15.6%
Households on SNAP or cash assistance11%

Household income distribution

Under $10k8.7%
$10–15k2.7%
$15–20k1.9%
$20–25k1.7%
$25–30k5.3%
$30–35k1.5%
$35–40k3.9%
$40–45k3.1%
$45–50k5.9%
$50–60k4.6%
$60–75k15.7%
$75–100k12.4%
$100–125k16.0%
$125–150k3.5%
$150–200k4.6%
$200k or more8.5%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed1,310
Mean adjusted gross income$89,716
Returns declaring $200,000 or more9.2%
Returns, under $25k30.5%
Returns, $25k–$50k22.1%
Returns, $50k–$75k13.7%
Returns, $75k–$100k9.2%
Returns, $100k–$200k15.3%
Returns, $200k or more9.2%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$419,600
Median gross rent$1,140
Rent as a share of household income33.2%
Owner-occupied68%
Vacant homes53.3%
Median year built1990

What the homes are

Detached house57%
Attached house5.7%
2 to 4 units13.4%
5 to 19 units16.9%
20 or more units6.6%
Mobile home0.3%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$528,989as of 2026-07
Typical home value, 1 yearup 1.8%
Typical home value, 5 yearsup 29%
Typical home value, 10 yearsup 83.3%
Typical home value since 2000
201520202026$528,989$268,579

$268,579 in 2015 to $528,989 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.3%
Bachelor's degree or higher50.6%
High school diploma or higher99.5%
Works from home16.8%
Drives to work alone72.7%
Takes public transport0%
Commutes 45 minutes or more4.8%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity34.5% 1.1 pts above the national average of 33.4%
Diagnosed diabetes13.4% 1.4 pts above the national average of 12%
Currently smokes9.2% 4 pts below the national average of 13.2%
High blood pressure41.5% 7.4 pts above the national average of 34.1%
Fair or poor general health15.9% 4.4 pts below the national average of 20.3%
No health insurance (18–64)5.2% 6.1 pts below the national average of 11.3%
Depression19.2% 2.7 pts below the national average of 21.9%
No leisure-time physical activity25.7% same as the national average of 25.4%
Arthritis36.2% 11.1 pts above the national average of 25.1%
Binge drinking14.2% 1.8 pts below the national average of 16%
Taking blood pressure medication85.2% 10.5 pts above the national average of 74.7%
Cancer (non-skin)14.5% 6.8 pts above the national average of 7.7%
Current asthma10% same as the national average of 10.4%
Coronary heart disease9.6% 3.4 pts above the national average of 6.2%
Routine check-up in past year84% 7.3 pts above the national average of 76.7%
Cholesterol screening92.1% 6.2 pts above the national average of 85.9%
Cognitive disability9.3% 5.5 pts below the national average of 14.8%
Colorectal screening76.3% 12 pts above the national average of 64.3%
COPD7.3% 0.7 pts above the national average of 6.6%
Visited a dentist73.7% 12.4 pts above the national average of 61.3%
Any disability30.8% same as the national average of 30.7%
Lacks emotional support15.5% 9.3 pts below the national average of 24.8%
Food insecurity6.4% 10.7 pts below the national average of 17.1%
Received food stamps6.9% 7.4 pts below the national average of 14.3%
Hearing disability10.4% 3.7 pts above the national average of 6.7%
High cholesterol41.3% 5.1 pts above the national average of 36.2%
Housing insecurity5% 8.8 pts below the national average of 13.8%
Independent living disability7% 1.4 pts below the national average of 8.4%
Lacks transport4% 5.2 pts below the national average of 9.2%
Loneliness24.9% 9.5 pts below the national average of 34.4%
Mammography use81.2% 5.3 pts above the national average of 75.9%
Poor mental health (14+ days)11.1% 5.7 pts below the national average of 16.8%
Mobility disability15.7% 1.7 pts above the national average of 14%
Poor physical health (14+ days)12.7% 0.8 pts below the national average of 13.5%
Self-care disability3.4% 0.6 pts below the national average of 4%
Utility shut-off threat3.2% 5.6 pts below the national average of 8.8%
Sleeps under 7 hours27.2% 9.2 pts below the national average of 36.4%
Stroke4.4% 1 pts above the national average of 3.4%
All natural teeth lost10.7% 2.3 pts below the national average of 13%
Vision disability4.2% 1.4 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments181
People employed1,072
Annual payroll$51,674,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 60.6% of US census tracts
FEMA ratingRelatively Moderate
Expected annual loss52.7 out of 100
Community resilience99.7 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Cold wave96Very High at its worst in this ZIP code
Hail86Relatively Moderate at its worst in this ZIP code
Landslide83.7Relatively Low at its worst in this ZIP code
Wildfire81.5Relatively Low at its worst in this ZIP code
Coastal flooding80.2Relatively Low at its worst in this ZIP code
Strong wind73Relatively Moderate at its worst in this ZIP code
River flooding72Relatively High at its worst in this ZIP code
Lightning71.1Relatively Moderate at its worst in this ZIP code
Tornado56.7Relatively Moderate at its worst in this ZIP code
Winter weather51.3Relatively Moderate at its worst in this ZIP code
Ice storm30.6Relatively Low at its worst in this ZIP code
Earthquake6.8Very Low at its worst in this ZIP code
Heat wave2.9Very Low at its worst in this ZIP code
Compared with Wisconsin and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPWisconsinUnited States
Median household income$72,762$75,670$78,538
Income per person$49,661$42,019$43,289
Poverty rate15.6%10.6%12.4%
Median home value$419,600$247,400$303,400
Median gross rent$1,140$1,045$1,348
Homeownership68%67.9%65%
Bachelor's degree or higher50.6%32.8%35%
Unemployment rate4.3%3.3%5.2%
Works from home16.8%11.6%13.5%
Born outside the US1.1%5.1%13.9%
Median age59.440.138.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationEPHRAIM 1NE-WWTP, WI US3.6 km away
Rain in a year31 in
Snow in a year62 in

Average high and low by month

January26.7°F / 12°F1.71 in rain, 16.8 in snow
February29.1°F / 12.8°F1.06 in rain, 14.1 in snow
March38.6°F / 21.1°F1.66 in rain, 7.9 in snow
April51°F / 31.1°F2.71 in rain, 6.4 in snow
May64.5°F / 41.9°F3.46 in rain
June73.8°F / 52.5°F3.31 in rain
July79.6°F / 57.8°F3.05 in rain
August78.3°F / 56.6°F3.03 in rain
September70.3°F / 51.2°F3.41 in rain
October57.1°F / 40.5°F3.61 in rain, 0.1 in snow
November43.5°F / 30.2°F2.27 in rain, 2.5 in snow
December32.5°F / 19°F1.7 in rain, 13.8 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Gibraltar Area School District100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability23more vulnerable than 23% of US census tracts
Socioeconomic status25more vulnerable than 25% of US census tracts
Household characteristics21more vulnerable than 21% of US census tracts
Racial and ethnic minority status10more vulnerable than 10% of US census tracts
Housing type and transport45more vulnerable than 45% of US census tracts
Walkability7.3 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

54211 Ephraim, WI5.5 km away
54210 Ellison Bay, WI9.2 km away
54212 Fish Creek, WI10.8 km away
54202 Baileys Harbor, WI15.2 km away
54209 Egg Harbor, WI23.7 km away
54246 Washington Island, WI26.8 km away
49893 Wallace, MI38.7 km away
49858 Menominee, MI40.2 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Door County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area23.45 sq mi
Water area0.01 sq mi
Population density91 people per sq mi
Latitude, longitude45.1875, -87.1139

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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