Lake Mills, WI ZIP Codes

One ZIP code serves Lake Mills, Wisconsin: 53551. Together they are home to 9,731 residents in 3,769 households. That is more than the 6,470 people counted inside Lake Mills city limits, because these ZIP codes reach past its boundary.

Lake Mills city limits (Census)

MeasureCensus figure
Residents6,470
Households2,581
Median household income$91,027
Median home value$317,100
Median age40.3
Median rent$1,209

All 1 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)9,731
Households (sum of ZIP codes)3,769
Median household income, range across ZIP codes$94,401 (53551) to $94,401 (53551)
Household-weighted average of ZIP medians (an approximation, not a true median)$94,401
Homeowners74.5%
Households with kids under 1826.4%
Moved in the past year6.4%
Carrier routes in EDDM2GO's route librarynot loaded yet

Every ZIP code in Lake Mills

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
53551Lake Mills9,7313,769$94,401$357,40074.5%26.4%6.4%——11% of its land; mailing city

A ZIP code is listed for Lake Mills when at least 10% of its land lies inside Lake Mills city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Lake Mills. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Lake Mills.

Counties

Price a mailing to Lake Mills ZIP codes

EDDM guides

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Frequently asked questions

What ZIP codes are in Lake Mills, WI?
53551. A ZIP code is listed for Lake Mills when at least 10% of its land lies inside Lake Mills city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Lake Mills.
What is the population of Lake Mills, WI?
The Census Bureau counts 6,470 residents inside Lake Mills city limits (ACS 2020–2024). The 1 ZIP code that serve Lake Mills hold 9,731 residents in all.
What is the median household income in Lake Mills, WI?
$91,027 inside Lake Mills city limits, per the Census Bureau. Across its ZIP codes the medians run from $94,401 to $94,401.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.