Potosi ZIP Codes — Grant County, WI

There is one unique ZIP code in Potosi, Wisconsin and it is 53820. Area code: 608.

ZIP codes

89.26

sq mi land

11.79

sq mi water

608

area code

Potosi, WI ZIP code map

About Potosi, WI

Potosi is a charming city located in the state of Wisconsin, renowned for its rich history and picturesque landscapes. Nestled in Grant County, Potosi offers a small-town atmosphere with a close-knit community and a variety of local amenities. Visitors and residents alike can enjoy the serene surroundings that exemplify the beauty of rural Wisconsin.

Location & geography

Potosi is situated in the southwestern part of Wisconsin, approximately 11 miles north of the Mississippi River town of Dubuque, Iowa, and about 44 miles southwest of the larger city of Madison, the state capital. The geographic area of Potosi encompasses 89.26 square miles of land and includes 11.79 square miles of water, integrating both natural beauty and recreational opportunities. The terrain is characterized by rolling hills and lush landscapes, contributing to the serene and scenic environment.

Community & economy

The character of Potosi is defined by its friendly atmosphere and strong community values, where residents actively participate in local events and initiatives. The economy is bolstered by agriculture, local businesses, and tourism, with the area known for its historic brewery and scenic river views. Daily life in Potosi includes enjoying outdoor activities, engaging with local history, and supporting community-driven events.

Transportation

Potosi is accessible via several key highways, including U.S. Route 61, which connects to nearby cities and towns. The nearest major airport is the Dubuque Regional Airport, located about 15 miles to the southwest. Public transit options are limited, but the tight-knit community often supports local transportation initiatives.

History

Founded in the early 19th century, Potosi grew from its roots in lead mining, which was a key industry during its early development. The city later became notable for its brewery, established in the late 1800s, which continues to attract visitors. Throughout its history, Potosi has experienced various transformations, adapting to changing economic conditions while preserving its rich heritage.

Did you know?

One surprising fact about Potosi is its designation as the home of the Potosi Brewery, which has a longstanding history dating back to 1852. Additionally, the city is home to the National Brewery Museum, showcasing Potosi’s brewing history and contributions to the industry.

ZIP codes for Potosi, WI (1)

ZIP code	City	County	Map
53820	Potosi	Grant	View map

Demographics & statistics

2,314

Population

45.3

Median age

$69,375

Median household income

$38,172

Per capita income

$180,400

Median home value

$754

Median monthly rent

84.2%

Home ownership

5.8%

Poverty rate

2.0%

Unemployment

949

Housing units

20.3%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

121

25–34

111

123

35–44

113

119

45–54

108

55–59

60–64

201

65–74

184

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	464	20.1%
18 and over	1,850	79.9%
65 and over	594	25.7%
Median age	45.3 years

Race & ethnicity

White 91.8%

Hispanic or Latino 3.5%

Two or more races 2.6%

Other race 1.2%

Asian 0.7%

Black or African American 0.3%

Group	Count	%
White	2,200	91.8%
Hispanic or Latino	83	3.5%
Two or more races	62	2.6%
Other race	29	1.2%
Asian	16	0.7%
Black or African American	7	0.3%

Household income

Under $10k 5.3%

$10k–$15k 2.3%

$15k–$25k 4.7%

$25k–$35k 5.9%

$35k–$50k 13.2%

$50k–$75k 22.6%

$75k–$100k 16.3%

$100k–$150k 17.5%

$150k–$200k 6.5%

$200k+ 5.8%

Range	% of households
Under $10k	5.3%
$10k–$15k	2.3%
$15k–$25k	4.7%
$25k–$35k	5.9%
$35k–$50k	13.2%
$50k–$75k	22.6%
$75k–$100k	16.3%
$100k–$150k	17.5%
$150k–$200k	6.5%
$200k+	5.8%
Median income	$69,375

Housing

Home values

Under $50k 4.6%

$50k–$100k 9.7%

$100k–$150k 22.5%

$150k–$200k 19.2%

$200k–$300k 24.9%

$300k–$500k 14.8%

$500k–$1M 4.3%

Housing overview

Metric	Value
Median home value	$180,400
Median rent / month	$754
Owner occupied	84.2%
Renter occupied	15.8%
Vacant	14.9%
Single-family detached	89.3%
Large apartment buildings	0.0%
Mobile homes	6.3%
Median rooms	6.0
Avg household size (owned)	2.51

Year built

Era	%
2020 or later	0.2%
2010–2019	4.6%
2000–2009	12.3%
1990–1999	13.9%
1980–1989	4.4%
1970–1979	17.7%
1960–1969	8.9%
1950–1959	4.3%
1940–1949	7.8%
1939 or earlier	26.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.5%
1 bedroom	3.9%
2 bedrooms	16.6%
3 bedrooms	55.0%
4 bedrooms	19.5%
5+ bedrooms	4.4%

Vehicles per household

Vehicles	% of households
No vehicle	2.5%
1 vehicle	25.0%
2 vehicles	35.8%
3 or more	36.8%

Heating fuel

Fuel type	%
Utility gas	2.6%
Electricity	4.8%
Propane / LP gas	61.0%
Fuel oil	14.9%
Wood	14.3%
Solar	0.2%
No fuel used	0.9%

Households & families

Household type	Count	%
Married-couple family	521	55.8%
Cohabiting couple	60	6.4%
Male householder, no spouse	152	16.3%
Female householder, no spouse	200	21.4%
Households with children under 18	239	25.6%
Households with seniors (65+)	381	40.8%
Average household size	2.48

Marital status

Status	Male	Female
Never married	27.5%	21.5%
Married	59.7%	58.3%
Separated	0.5%	0.0%
Widowed	3.0%	14.2%
Divorced	9.4%	6.0%

Education

Less than 9th grade 1.9%

Some HS, no diploma 3.8%

HS graduate 45.3%

Some college, no degree 17.9%

Associate's degree 10.8%

Bachelor's degree 14.3%

Graduate / professional 6.0%

Metric	%
HS diploma or higher	94.3%
Bachelor's or higher	20.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	38	7.7%
Kindergarten	26	5.3%
Elementary school	186	37.7%
High school	107	21.7%
College / grad school	136	27.6%

Employment

Industry of employment

Education & healthcare 20.0%

Manufacturing 17.7%

Agriculture & mining 12.1%

Retail trade 8.8%

Construction 7.6%

Arts, food & hospitality 6.9%

Transportation & utilities 6.0%

Finance & real estate 5.6%

Professional & management 5.5%

Other services 4.2%

Public administration 2.8%

Wholesale trade 1.7%

Information 1.1%

Occupation

Category	%
Management, business & arts	33.1%
Service	14.1%
Sales & office	16.7%
Natural resources & construction	18.7%
Production & transportation	17.4%

Employment type

Type	%
Private sector	80.9%
Government	12.5%
Self-employed	6.3%
Unpaid family workers	0.3%

Commute

Method	%
Drive alone	77.8%
Carpool	4.8%
Public transit	0.0%
Walk	1.1%
Other means	0.7%
Avg commute (minutes)	27.3

Poverty

All people 5.8%

Under 18 years 4.2%

18 and over 6.2%

Married-couple families 3.8%

Female-led households 14.3%

Income support

Source	% of households
Social Security	41.9%
Retirement income	31.0%
Supplemental Security	2.4%
Cash public assistance	1.2%
Food stamps / SNAP	8.7%

Health indicators

Condition	%
High blood pressure	32.7%
High cholesterol	35.3%
Heart disease	6.6%
Stroke	3.0%
Asthma	9.4%
Arthritis	25.7%
Kidney disease	2.9%
Pulmonary disease	6.5%
Cancer	7.4%

Behavior / access	%
Binge drinking	24.2%
No physical activity	20.5%
Less than 7 hrs sleep	30.3%
Fair or poor health	12.1%
Poor mental health	13.0%
Poor physical health	10.0%
No health insurance	9.6%
Visited doctor (checkup)	75.4%
Visited dentist	69.9%
Cholesterol screening	88.3%
Teeth loss	11.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	91	4.9%

Disability	%
Any disability	9.0%
Under 18	3.2%
18–64 years	6.8%
65 and over	18.2%

Health insurance coverage

Type	%
Private insurance	81.8%
Public insurance	36.3%
Uninsured under 19	1.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,156	93.2%
Spanish	17	0.8%
Other Indo-European	10	0.5%
Asian & Pacific Islander	7	0.3%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,298	99.3%
Born in same state	2,292	99.0%
Born in different state	1,429	61.8%
Foreign born	6	0.3%
Naturalized citizen	16	0.7%
Not a US citizen	10	62.5%

Ancestry

Ancestry	Count	%
Italian	264	11.4%
French	214	9.2%
Arab	59	2.5%
Polish	45	1.9%

Ancestry	Count	%
English	30	1.3%
Dutch	6	0.3%
Irish	2	0.1%

Technology access

Metric	% of households
Computer access	40.3%
Internet access	84.9%

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

Frequently asked questions

What ZIP codes does Potosi, WI have?

Potosi, WI has one ZIP code: 53820. Each ZIP code serves a distinct delivery area within the city and surrounding region.