53820 ZIP Code — Potosi, WI

Grant County, Wisconsin

ZIP code 53820 is located in Potosi, Wisconsin, within Grant County. It covers approximately 89.26 square miles and serves a population of 2,314 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 608.

About ZIP code 53820

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 $180,400. Owner-occupancy is high at 84%, well above the national average.

Median household income is $69,375. The poverty rate of 6% is below the national average. 42% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 27 minutes is near the national average.

College attainment at 20% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 53820 reflects a community defined by high homeownership and a significant Social Security-dependent population.

2,314
population
89.26
sq mi land
Standard
ZIP type
Central (CT)
timezone
53820 ZIP code map
Cities in ZIP code 53820

Below are the cities the US Postal Service accepts for ZIP code 53820. Using any city not on this list may result in mail delivery delays.

City Status
Potosi Preferred
Nearby ZIP codes
52073 Sherrill (5.8 mi) 52001 Dubuque (8 mi) 52002 Dubuque (10.6 mi) 53806 Cassville (11.1 mi) 52099 Dubuque (11.2 mi) 53813 Lancaster (12.5 mi) 53818 Platteville (12.8 mi) 52053 Holy Cross (12.8 mi) 53807 Cuba City (12.9 mi) 53811 Hazel Green (13.9 mi) 53804 Bloomington (16.1 mi) 52003 Dubuque (16.7 mi)
Demographics updated 05/2026
Population
Total population 2,314
Population density 26 / sq mi
State FIPS 55
County FIPS 043
Geography
Land area 89.26 sq mi
Water area 11.79 sq mi
Latitude 42.6722
Longitude -90.7262
Timezone Central (CT)
Area code 608
Total population by age
Gender
Race & ethnicity
Economics updated 05/2026
Household income
Income range This ZIP County avg State avg
Under $50k 36.9% 45.4% 39.4%
$50k – $100k 40.3% 34.4% 33.0%
$100k – $200k 20.6% 17.7% 22.4%
Over $200k 2.2% 2.4% 5.2%

Demographics & statistics

2,314
Population
26
People per sq mi
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
83
Under 5
75
50
5–9
45
76
10–14
69
80
15–19
73
70
20–24
63
121
25–34
111
123
35–44
113
119
45–54
108
88
55–59
80
90
60–64
83
201
65–74
184
72
75–84
66
37
85+
34
← Male
Female →

Age summary

GroupCount%
Under 1846420.1%
18 and over1,85079.9%
65 and over59425.7%
Median age45.3 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%
GroupCount%
White2,20091.8%
Hispanic or Latino833.5%
Two or more races622.6%
Other race291.2%
Asian160.7%
Black or African American70.3%

Household income

Income range This ZIP County avg State avg
Under $50k 36.9% 45.4% 39.4%
$50k – $100k 40.3% 34.4% 33.0%
$100k – $200k 20.6% 17.7% 22.4%
Over $200k 2.2% 2.4% 5.2%
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 $10k5.3%
$10k–$15k2.3%
$15k–$25k4.7%
$25k–$35k5.9%
$35k–$50k13.2%
$50k–$75k22.6%
$75k–$100k16.3%
$100k–$150k17.5%
$150k–$200k6.5%
$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

MetricValue
Median home value$180,400
Median rent / month$754
Owner occupied84.2%
Renter occupied15.8%
Vacant14.9%
Single-family detached89.3%
Large apartment buildings0.0%
Mobile homes6.3%
Median rooms6.0
Avg household size (owned)2.51

Year built

Era%
2020 or later0.2%
2010–20194.6%
2000–200912.3%
1990–199913.9%
1980–19894.4%
1970–197917.7%
1960–19698.9%
1950–19594.3%
1940–19497.8%
1939 or earlier26.0%

Bedrooms

Size% of units
No bedroom (studio)0.5%
1 bedroom3.9%
2 bedrooms16.6%
3 bedrooms55.0%
4 bedrooms19.5%
5+ bedrooms4.4%

Vehicles per household

Vehicles% of households
No vehicle2.5%
1 vehicle25.0%
2 vehicles35.8%
3 or more36.8%

Heating fuel

Fuel type%
Utility gas2.6%
Electricity4.8%
Propane / LP gas61.0%
Fuel oil14.9%
Wood14.3%
Solar0.2%
No fuel used0.9%

Households & families

Household typeCount%
Married-couple family52155.8%
Cohabiting couple606.4%
Male householder, no spouse15216.3%
Female householder, no spouse20021.4%
Households with children under 1823925.6%
Households with seniors (65+)38140.8%
Average household size2.48

Marital status

StatusMaleFemale
Never married27.5%21.5%
Married59.7%58.3%
Separated0.5%0.0%
Widowed3.0%14.2%
Divorced9.4%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 higher94.3%
Bachelor's or higher20.3%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool387.7%
Kindergarten265.3%
Elementary school18637.7%
High school10721.7%
College / grad school13627.6%

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 & arts33.1%
Service14.1%
Sales & office16.7%
Natural resources & construction18.7%
Production & transportation17.4%

Employment type

Type%
Private sector80.9%
Government12.5%
Self-employed6.3%
Unpaid family workers0.3%

Commute

Method%
Drive alone77.8%
Carpool4.8%
Public transit0.0%
Walk1.1%
Work from home15.6%
Other means0.7%
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 Security41.9%
Retirement income31.0%
Supplemental Security2.4%
Cash public assistance1.2%
Food stamps / SNAP8.7%

Health indicators

Condition%
Obesity35.8%
High blood pressure32.7%
High cholesterol35.3%
Diabetes9.3%
Heart disease6.6%
Stroke3.0%
Asthma9.4%
Arthritis25.7%
Kidney disease2.9%
Pulmonary disease6.5%
Cancer7.4%
Behavior / access%
Smoking17.8%
Binge drinking24.2%
No physical activity20.5%
Less than 7 hrs sleep30.3%
Depression19.5%
Fair or poor health12.1%
Poor mental health13.0%
Poor physical health10.0%
No health insurance9.6%
Visited doctor (checkup)75.4%
Visited dentist69.9%
Cholesterol screening88.3%
Teeth loss11.8%

Veterans & disability

VeteransCount%
Civilian veterans914.9%
Disability%
Any disability9.0%
Under 183.2%
18–64 years6.8%
65 and over18.2%

Health insurance coverage

Type%
Private insurance81.8%
Public insurance36.3%
No insurance3.0%
Uninsured under 191.4%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only2,15693.2%
Spanish170.8%
Other Indo-European100.5%
Asian & Pacific Islander70.3%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)2,29899.3%
Born in same state2,29299.0%
Born in different state1,42961.8%
Foreign born60.3%
Naturalized citizen160.7%
Not a US citizen1062.5%

Ancestry

AncestryCount%
Italian26411.4%
French2149.2%
Arab592.5%
Polish451.9%
AncestryCount%
English301.3%
Dutch60.3%
Irish20.1%

Technology access

Metric% of households
Computer access40.3%
Internet access84.9%

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

Frequently asked questions about ZIP code 53820

What city is ZIP code 53820 in?

ZIP code 53820 is primarily assigned to Potosi, Wisconsin.

What county is ZIP code 53820 in?

ZIP code 53820 falls within Grant County, Wisconsin.

Does ZIP code 53820 have an older population?

26% of residents in ZIP code 53820 are 65 or older, above the national average of ~17%.

Is ZIP code 53820 mostly owner-occupied?

84% of occupied units in ZIP code 53820 are owner-occupied, well above the national average.

Does ZIP code 53820 have a large retiree population?

42% of households in ZIP code 53820 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 53820?

The median home value in ZIP code 53820 is $180,400.

What timezone is ZIP code 53820 in?

ZIP code 53820 observes the CST timezone.

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