50450 ZIP Code — Lake Mills, IA

Winnebago County, Iowa

ZIP code 50450 is located in Lake Mills, Iowa, within Winnebago County. It covers approximately 84.54 square miles and serves a population of 2,839 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 641.

About ZIP code 50450

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $139,800. Owner-occupancy sits near the national average at 71%.

Median household income is $73,142. 41% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is production, transportation, and material moving, with education and healthcare as the leading industry. The average commute of 17 minutes is near the national average.

College attainment at 18% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 50450 reflects a community defined by a trades-oriented workforce and a significant Social Security-dependent population.

2,839

population

84.54

sq mi land

Standard

ZIP type

Central (CT)

timezone

50450 ZIP code map

Cities in ZIP code 50450

Below are the cities the US Postal Service accepts for ZIP code 50450. Using any city not on this list may result in mail delivery delays.

City	Status
Lake Mills	Preferred

Nearby ZIP codes

50446 Joice (5.2 mi) 50453 Leland (7.4 mi) 56029 Emmons (8.8 mi) 50473 Scarville (9 mi) 50434 Fertile (9.3 mi) 50444 Hanlontown (9.6 mi) 56089 Twin Lakes (10.9 mi) 50459 Northwood (12.4 mi) 50478 Thompson (12.9 mi) 50436 Forest City (13.1 mi) 56051 Kiester (14 mi) 50456 Manly (15.7 mi)

Demographics updated 05/2026

Population
Total population	2,839
Population density	34 / sq mi
State FIPS	19
County FIPS	189

Geography
Land area	84.54 sq mi
Water area	1.66 sq mi
Latitude	43.4030
Longitude	-93.5081
Timezone	Central (CT)
Area code	641

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.5%	45.7%	40.1%
$50k – $100k	34.8%	33.4%	33.4%
$100k – $200k	20.9%	18.5%	21.5%
Over $200k	1.9%	2.4%	5.0%

Demographics & statistics

2,839

Population

People per sq mi

45.8

Median age

$73,142

Median household income

$35,010

Per capita income

$139,800

Median home value

$658

Median monthly rent

71.3%

Home ownership

8.8%

Poverty rate

2.0%

Unemployment

1,047

Housing units

17.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

100

20–24

172

25–34

180

127

35–44

132

169

45–54

177

105

55–59

110

60–64

146

65–74

152

139

75–84

146

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	571	20.1%
18 and over	2,268	79.9%
65 and over	726	25.6%
Median age	45.8 years

Race & ethnicity

White 91.7%

Two or more races 4.2%

Hispanic or Latino 3.7%

Other race 0.3%

Asian 0.1%

Group	Count	%
White	2,703	91.7%
Two or more races	124	4.2%
Hispanic or Latino	109	3.7%
Other race	9	0.3%
Asian	3	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.5%	45.7%	40.1%
$50k – $100k	34.8%	33.4%	33.4%
$100k – $200k	20.9%	18.5%	21.5%
Over $200k	1.9%	2.4%	5.0%

Under $10k 3.7%

$10k–$15k 4.1%

$15k–$25k 7.0%

$25k–$35k 7.6%

$35k–$50k 12.0%

$50k–$75k 20.1%

$75k–$100k 17.5%

$100k–$150k 21.1%

$150k–$200k 3.8%

$200k+ 3.1%

Range	% of households
Under $10k	3.7%
$10k–$15k	4.1%
$15k–$25k	7.0%
$25k–$35k	7.6%
$35k–$50k	12.0%
$50k–$75k	20.1%
$75k–$100k	17.5%
$100k–$150k	21.1%
$150k–$200k	3.8%
$200k+	3.1%
Median income	$73,142

Housing

Home values

Under $50k 3.3%

$50k–$100k 28.6%

$100k–$150k 23.4%

$150k–$200k 15.7%

$200k–$300k 17.7%

$300k–$500k 10.9%

$500k–$1M 0.5%

Housing overview

Metric	Value
Median home value	$139,800
Median rent / month	$658
Owner occupied	71.3%
Renter occupied	28.7%
Vacant	12.3%
Single-family detached	85.5%
Large apartment buildings	2.4%
Mobile homes	0.9%
Median rooms	6.0
Avg household size (owned)	2.33

Year built

Era	%
2020 or later	0.0%
2010–2019	0.7%
2000–2009	7.1%
1990–1999	8.9%
1980–1989	4.6%
1970–1979	17.6%
1960–1969	10.4%
1950–1959	10.4%
1940–1949	3.9%
1939 or earlier	36.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.4%
1 bedroom	7.4%
2 bedrooms	35.8%
3 bedrooms	32.9%
4 bedrooms	20.9%
5+ bedrooms	2.6%

Vehicles per household

Vehicles	% of households
No vehicle	6.8%
1 vehicle	27.0%
2 vehicles	45.6%
3 or more	20.6%

Heating fuel

Fuel type	%
Utility gas	54.6%
Electricity	20.8%
Propane / LP gas	22.6%
Wood	0.6%
Solar	0.5%

Households & families

Household type	Count	%
Married-couple family	610	49.7%
Cohabiting couple	95	7.7%
Male householder, no spouse	225	18.3%
Female householder, no spouse	298	24.3%
Households with children under 18	278	22.6%
Households with seniors (65+)	465	37.9%
Average household size	2.27

Marital status

Status	Male	Female
Never married	33.5%	22.9%
Married	52.3%	50.2%
Separated	0.9%	0.6%
Widowed	4.7%	14.7%
Divorced	8.7%	11.5%

Education

Less than 9th grade 1.4%

Some HS, no diploma 4.2%

HS graduate 37.0%

Some college, no degree 24.2%

Associate's degree 15.6%

Bachelor's degree 12.7%

Graduate / professional 4.9%

Metric	%
HS diploma or higher	94.4%
Bachelor's or higher	17.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	51	9.8%
Kindergarten	29	5.6%
Elementary school	218	42.0%
High school	157	30.3%
College / grad school	64	12.3%

Employment

Industry of employment

Education & healthcare 27.7%

Manufacturing 22.2%

Retail trade 11.2%

Arts, food & hospitality 9.9%

Transportation & utilities 7.6%

Wholesale trade 6.3%

Construction 3.5%

Finance & real estate 2.9%

Information 2.2%

Professional & management 2.0%

Other services 2.0%

Agriculture & mining 1.6%

Public administration 0.7%

Occupation

Category	%
Management, business & arts	26.4%
Service	15.7%
Sales & office	19.5%
Natural resources & construction	10.9%
Production & transportation	27.5%

Employment type

Type	%
Private sector	85.3%
Government	10.1%
Self-employed	4.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	78.6%
Carpool	10.4%
Public transit	0.0%
Walk	2.7%
Work from home	7.4%
Other means	1.0%
Avg commute (minutes)	16.6

Poverty

All people 8.8%

Under 18 years 14.4%

18 and over 7.4%

Married-couple families 0.0%

Female-led households 45.6%

Income support

Source	% of households
Social Security	41.3%
Retirement income	33.2%
Supplemental Security	4.2%
Cash public assistance	1.8%
Food stamps / SNAP	12.5%

Health indicators

Condition	%
Obesity	36.5%
High blood pressure	36.8%
High cholesterol	34.4%
Diabetes	10.7%
Heart disease	7.8%
Stroke	3.4%
Asthma	8.9%
Arthritis	27.6%
Kidney disease	3.2%
Pulmonary disease	7.2%
Cancer	8.6%

Behavior / access	%
Smoking	15.9%
Binge drinking	19.8%
No physical activity	24.4%
Less than 7 hrs sleep	30.4%
Depression	16.4%
Fair or poor health	12.9%
Poor mental health	12.3%
Poor physical health	9.8%
No health insurance	8.9%
Visited doctor (checkup)	76.0%
Visited dentist	69.3%
Cholesterol screening	90.2%
Teeth loss	12.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	165	7.3%

Disability	%
Any disability	11.0%
Under 18	4.4%
18–64 years	6.3%
65 and over	27.1%

Health insurance coverage

Type	%
Private insurance	74.6%
Public insurance	41.9%
No insurance	4.0%
Uninsured under 19	5.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,727	96.1%
Spanish	97	3.6%
Other Indo-European	94	3.4%
Asian & Pacific Islander	3	0.1%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,823	99.4%
Born in same state	2,724	95.9%
Born in different state	1,413	49.8%
Foreign born	99	3.5%
Naturalized citizen	16	0.6%
Not a US citizen	11	68.8%

Ancestry

Ancestry	Count	%
Polish	1,305	46%
French	200	7%
Arab	156	5.5%

Ancestry	Count	%
Italian	119	4.2%
English	73	2.6%
Dutch	29	1%

Technology access

Metric	% of households
Computer access	43.3%
Internet access	87.7%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 50450

What city is ZIP code 50450 in?

ZIP code 50450 is primarily assigned to Lake Mills, Iowa.

What county is ZIP code 50450 in?

ZIP code 50450 falls within Winnebago County, Iowa.

Does ZIP code 50450 have an older population?

26% of residents in ZIP code 50450 are 65 or older, above the national average of ~17%.

Does ZIP code 50450 have a large retiree population?

41% of households in ZIP code 50450 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 50450?

The median home value in ZIP code 50450 is $139,800.

What is the population of ZIP code 50450?

ZIP code 50450 has an estimated population of 2,839 residents, with a density of 34 people per square mile.

What timezone is ZIP code 50450 in?

ZIP code 50450 observes the CST timezone.