54205 ZIP Code — Casco, WI

Kewaunee County, Wisconsin

ZIP code 54205 is located in Casco, Wisconsin, within Kewaunee County. It covers approximately 44.13 square miles and serves a population of 2,184 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 920.

About ZIP code 54205

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 $217,600. Owner-occupancy is high at 94%, well above the national average.

Median household income is $85,809. The poverty rate of 3% is below the national average. 34% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. The average commute of 28 minutes is near the national average.

College attainment at 19% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 54205 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

2,184

population

44.13

sq mi land

Standard

ZIP type

Central (CT)

timezone

54205 ZIP code map

Cities in ZIP code 54205

Below are the cities the US Postal Service accepts for ZIP code 54205. Using any city not on this list may result in mail delivery delays.

City	Status
Casco	Preferred

Nearby ZIP codes

54217 Luxemburg (5.1 mi) 54201 Algoma (7.5 mi) 54213 Forestville (8.4 mi) 54229 New Franken (10.7 mi) 54229 New Franken (10.7 mi) 54216 Kewaunee (10.8 mi) 54204 Brussels (11 mi) 54311 Green Bay (15 mi) 54208 Denmark (17.8 mi) 54302 Green Bay (18.3 mi)

Demographics updated 05/2026

Population
Total population	2,184
Population density	49 / sq mi
State FIPS	55
County FIPS	061

Geography
Land area	44.13 sq mi
Water area	0.01 sq mi
Latitude	44.5953
Longitude	-87.6179
Timezone	Central (CT)
Area code	920

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	29.9%	36.2%	39.4%
$50k – $100k	36.9%	35.5%	33.0%
$100k – $200k	28.6%	25.8%	22.4%
Over $200k	4.6%	2.6%	5.2%

Demographics & statistics

2,184

Population

People per sq mi

42.6

Median age

$85,809

Median household income

$39,109

Per capita income

$217,600

Median home value

$725

Median monthly rent

93.7%

Home ownership

3.1%

Poverty rate

1.5%

Unemployment

776

Housing units

18.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

108

35–44

104

188

45–54

181

109

55–59

105

60–64

112

65–74

108

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	528	24.2%
18 and over	1,656	75.8%
65 and over	322	14.7%
Median age	42.6 years

Race & ethnicity

White 94.1%

Two or more races 3.8%

Hispanic or Latino 1.1%

Black or African American 0.7%

Asian 0.1%

American Indian / Alaska Native 0.1%

Group	Count	%
White	2,079	94.1%
Two or more races	83	3.8%
Hispanic or Latino	25	1.1%
Black or African American	16	0.7%
Asian	3	0.1%
American Indian / Alaska Native	3	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	29.9%	36.2%	39.4%
$50k – $100k	36.9%	35.5%	33.0%
$100k – $200k	28.6%	25.8%	22.4%
Over $200k	4.6%	2.6%	5.2%

Under $10k 2.2%

$10k–$15k 2.6%

$15k–$25k 3.8%

$25k–$35k 4.9%

$35k–$50k 9.1%

$50k–$75k 20.5%

$75k–$100k 15.6%

$100k–$150k 21.3%

$150k–$200k 10.8%

$200k+ 9.3%

Range	% of households
Under $10k	2.2%
$10k–$15k	2.6%
$15k–$25k	3.8%
$25k–$35k	4.9%
$35k–$50k	9.1%
$50k–$75k	20.5%
$75k–$100k	15.6%
$100k–$150k	21.3%
$150k–$200k	10.8%
$200k+	9.3%
Median income	$85,809

Housing

Home values

Under $50k 1.6%

$50k–$100k 5.3%

$100k–$150k 21.6%

$150k–$200k 14.2%

$200k–$300k 31.1%

$300k–$500k 18.6%

$500k–$1M 7.5%

Housing overview

Metric	Value
Median home value	$217,600
Median rent / month	$725
Owner occupied	93.7%
Renter occupied	6.3%
Vacant	5.3%
Single-family detached	90.1%
Large apartment buildings	1.0%
Mobile homes	5.6%
Median rooms	6.2
Avg household size (owned)	2.81

Year built

Era	%
2020 or later	2.2%
2010–2019	3.9%
2000–2009	12.2%
1990–1999	15.3%
1980–1989	12.4%
1970–1979	11.5%
1960–1969	6.1%
1950–1959	6.5%
1940–1949	4.0%
1939 or earlier	25.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.1%
1 bedroom	1.9%
2 bedrooms	20.4%
3 bedrooms	54.1%
4 bedrooms	21.5%
5+ bedrooms	2.1%

Vehicles per household

Vehicles	% of households
No vehicle	1.2%
1 vehicle	16.6%
2 vehicles	38.0%
3 or more	44.2%

Heating fuel

Fuel type	%
Utility gas	52.0%
Electricity	7.7%
Propane / LP gas	26.8%
Fuel oil	5.4%
Wood	7.7%

Households & families

Household type	Count	%
Married-couple family	527	67.5%
Cohabiting couple	27	3.5%
Male householder, no spouse	99	12.7%
Female householder, no spouse	128	16.4%
Households with children under 18	261	33.4%
Households with seniors (65+)	235	30.1%
Average household size	2.79

Marital status

Status	Male	Female
Never married	32.1%	23.5%
Married	61.0%	62.9%
Separated	0.0%	0.0%
Widowed	2.0%	9.8%
Divorced	4.8%	3.7%

Education

Less than 9th grade 1.3%

Some HS, no diploma 2.7%

HS graduate 39.9%

Some college, no degree 24.1%

Associate's degree 13.4%

Bachelor's degree 14.7%

Graduate / professional 3.8%

Metric	%
HS diploma or higher	96.0%
Bachelor's or higher	18.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	26	5.7%
Kindergarten	32	7.0%
Elementary school	206	44.9%
High school	121	26.4%
College / grad school	74	16.1%

Employment

Industry of employment

Manufacturing 26.0%

Education & healthcare 18.6%

Construction 9.3%

Retail trade 7.4%

Wholesale trade 7.1%

Agriculture & mining 6.2%

Finance & real estate 5.0%

Transportation & utilities 4.8%

Arts, food & hospitality 4.7%

Professional & management 4.4%

Other services 4.2%

Public administration 1.8%

Information 0.5%

Occupation

Category	%
Management, business & arts	27.5%
Service	12.9%
Sales & office	18.3%
Natural resources & construction	17.8%
Production & transportation	23.5%

Employment type

Type	%
Private sector	84.9%
Government	7.6%
Self-employed	7.3%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	88.0%
Carpool	1.9%
Public transit	0.2%
Walk	2.1%
Work from home	7.3%
Other means	0.5%
Avg commute (minutes)	27.7

Poverty

All people 3.1%

Under 18 years 0.4%

18 and over 4.0%

Married-couple families 0.4%

Female-led households 5.7%

Income support

Source	% of households
Social Security	33.8%
Retirement income	25.9%
Supplemental Security	1.8%
Cash public assistance	0.5%
Food stamps / SNAP	3.6%

Health indicators

Condition	%
Obesity	33.6%
High blood pressure	30.3%
High cholesterol	32.4%
Diabetes	8.6%
Heart disease	5.9%
Stroke	2.8%
Asthma	9.5%
Arthritis	23.5%
Kidney disease	2.7%
Pulmonary disease	5.9%
Cancer	6.9%

Behavior / access	%
Smoking	17.9%
Binge drinking	24.7%
No physical activity	20.6%
Less than 7 hrs sleep	31.1%
Depression	20.2%
Fair or poor health	11.6%
Poor mental health	13.5%
Poor physical health	9.5%
No health insurance	10.7%
Visited doctor (checkup)	73.6%
Visited dentist	69.5%
Cholesterol screening	87.3%
Teeth loss	11.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	59	3.6%

Disability	%
Any disability	8.5%
Under 18	1.9%
18–64 years	8.2%
65 and over	20.8%

Health insurance coverage

Type	%
Private insurance	84.8%
Public insurance	21.5%
No insurance	3.3%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,032	93.0%
Spanish	5	0.2%
Other Indo-European	4	0.2%
Asian & Pacific Islander	1	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,166	99.2%
Born in same state	2,166	99.2%
Born in different state	1,997	91.4%
Foreign born	0	0.0%
Naturalized citizen	18	0.8%
Not a US citizen	13	72.2%

Ancestry

Ancestry	Count	%
Italian	110	5%
French	93	4.3%
Arab	91	4.2%
English	47	2.2%

Ancestry	Count	%
Polish	41	1.9%
German	24	1.1%
Dutch	21	1%

Technology access

Metric	% of households
Computer access	35.8%
Internet access	91.8%

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

Frequently asked questions about ZIP code 54205

What city is ZIP code 54205 in?

ZIP code 54205 is primarily assigned to Casco, Wisconsin.

What county is ZIP code 54205 in?

ZIP code 54205 falls within Kewaunee County, Wisconsin.

Is ZIP code 54205 mostly owner-occupied?

94% of occupied units in ZIP code 54205 are owner-occupied, well above the national average.

What is the population of ZIP code 54205?

ZIP code 54205 has an estimated population of 2,184 residents, with a density of 49 people per square mile.

What is the typical home value in ZIP code 54205?

The median home value in ZIP code 54205 is $217,600.

What is the median household income in ZIP code 54205?

The median household income in ZIP code 54205 is $85,809, above the national median of ~$75,000.

What timezone is ZIP code 54205 in?

ZIP code 54205 observes the CST timezone.