US ZIP Code
53551

Lake Mills, WI

Jefferson County  ·  Wisconsin

● Active
👥 9,485 Population ↑ 10% since 2019
💰 $89,841 Median HH Income
▲ 18% above avg ↑ 22% since 2019
🎂 40.8 Median Age
🏠 $322,700 Median Home Value
▲ 16% above avg ↑ 48% since 2019
🎓 53.7% College Grads
▲ 39% above avg
📊 0.6% Unemployment
▼ 87% below avg ↓ 66% since 2019
ZIP Code Details
ZIP Code53551
CityLake Mills
StateWisconsin (WI)
CountyJefferson County
Area Code274/920
Elevation882 ft
Latitude43.079479
Longitude-88.916098
TimezoneChicago (DST)
FIPS55055
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 52.3% (4,963) Female 47.7% (4,522) ♀

Race & Ethnicity

White: 90%Hispanic: 6.2%Black: 0.9%Asian: 0.3%Other: 2.7%Race
White90.0%
Hispanic6.2%
Black0.9%
Asian0.3%
Other2.7%

Age Breakdown

Under 5
4%
5–17
19%
18–24
7%
25–44
25%
45–64
27%
65+
9%

Key Indicators

Median Age40.8 yrs
Avg Household Size2.62
Below Poverty5.5% ▼ 45% below avg
College Grads53.7% ▲ 39% above avg
Unemployment0.6% ▼ 87% below avg
No HS Diploma19 (0.3%)
HS Graduate1,327 (20.7%)
Some College753 (11.7%)
Associates873 (13.6%)
Bachelors558 (8.7%)
Graduate Degree2,892 (45%)

Education

No HS: 0.3%HS Grad: 20.7%Some College: 11.7%Associates: 13.6%Bachelors: 8.7%Graduate: 45%Edu
No HS0.3%
HS Grad20.7%
Some College11.7%
Associates13.6%
Bachelors8.7%
Graduate45.0%
Housing & Income

Housing Tenure

Owner: 76.2%Renter: 23.8%Tenure
Owner76.2%
Renter23.8%

Home Value Distribution

Under $50k
3%
$50k–100k
1%
$100k–150k
2%
$150k–200k
8%
$200k–300k
31%
$300k–500k
39%
Over $500k
17%

Financials

Median HH Income$89,841 ▲ 18% above avg ↑ 22% since 2019
Median Home Value$322,700 ▲ 16% above avg ↑ 48% since 2019
Home/Income Ratio3.6x (nat avg ~3.5x)
Median Rent$1,089/mo ↑ 11% since 2019
Total Units4,048
Vacant Units447
Avg HH Size2.62

Income Distribution

Under $25k
7%
$25k–50k
10%
$50k–75k
20%
$75k–100k
19%
$100k–150k
19%
$150k–200k
15%
Over $200k
11%
Employment & Commute

How People Get to Work

Drove Alone
83%
Walked
1%
Work From Home
15%

Commute Time

Under 15 min
39%
15–30 min
21%
30–45 min
22%
Over 45 min
18%
Housing Stock

Year Built

Before 1940
0%
1940s–1950s
8%
1960s–1970s
9%
1980s–1990s
19%
2000+
63%

Summary

Total Units4,048
Vacant447
Owner Occupied76.2%
Renter Occupied23.8%
Avg HH Size2.62
Frequently Asked Questions
ZIP code 53551 is in Lake Mills, WI, in Jefferson County.
ZIP code 53551 is located in Wisconsin (WI).
ZIP code 53551 is in Jefferson County, WI.
ZIP 53551 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 53551 is 9,485 people (ACS 2023).
The median household income in ZIP code 53551 is $89,841 (ACS 2023).
The median home value in ZIP 53551 is $322,700 (ACS 2023).
About ZIP Code 53551

ZIP code 53551 is located in Lake Mills, Wisconsin, within Jefferson County. With a population of 9,485, this is a lightly populated ZIP code with a middle-aged community — the median age is 40.8 years. Economically, 53551 is a middle-income ZIP code: the median household income of $89,841 is above the national average.

Real estate in ZIP code 53551 represents a mid-range housing market. The median home value of $322,700 is above the national average. Renters can expect to pay around $1,089 per month in median rent. Homeownership is strong here — 76.2% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 48% since 2019.

The population of 53551 is primarily White (89.99%). Residents are well-educated — 53.7% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 5.5%. Household income has grown by 22% since 2019.

The unemployment rate in 53551 stands at 0.6%, which is well below the national average. About 15% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 81%.

Overall, ZIP code 53551 in Lake Mills, WI is characterized as middle-income, well-educated, a middle-aged community, and predominantly owner-occupied. With 9,485 residents, a median household income of $89,841, and a median home value of $322,700, it offers a clear picture of life in this part of Wisconsin.