53091 ZIP Code — Theresa, WI

Dodge County, Wisconsin

ZIP code 53091 is located in Theresa, Wisconsin, within Dodge County. It covers approximately 25.66 square miles and serves a population of 2,177 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 920.

About ZIP code 53091

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $177,300. Owner-occupancy is high at 82%, well above the national average.

Median household income is $75,833. 33% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is production, transportation, and material moving, with manufacturing as the leading industry. The average commute of 28 minutes is near the national average.

College attainment at 16% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 53091 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

2,177

population

25.66

sq mi land

Standard

ZIP type

Central (CT)

timezone

53091 ZIP code map

Cities in ZIP code 53091

Below are the cities the US Postal Service accepts for ZIP code 53091. Using any city not on this list may result in mail delivery delays.

City	Status
Theresa	Preferred

Nearby ZIP codes

53002 Allenton (4.7 mi) 53050 Mayville (5.6 mi) 53048 Lomira (6.7 mi) 53035 Iron Ridge (7.9 mi) 53099 Woodland (8.8 mi) 53006 Brownsville (10.1 mi) 53032 Horicon (10.2 mi) 53078 Rubicon (12 mi) 53027 Hartford (12.1 mi) 53040 Kewaskum (12.4 mi) 53090 West Bend (12.6 mi) 53010 Campbellsport (12.6 mi)

Demographics updated 05/2026

Population
Total population	2,177
Population density	85 / sq mi
State FIPS	55
County FIPS	027

Geography
Land area	25.66 sq mi
Water area	0.42 sq mi
Latitude	43.4842
Longitude	-88.4417
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	38.7%	39.7%	39.4%
$50k – $100k	34.3%	37.8%	33.0%
$100k – $200k	26.1%	20.0%	22.4%
Over $200k	0.8%	2.6%	5.2%

Demographics & statistics

2,177

Population

People per sq mi

42.8

Median age

$75,833

Median household income

$35,606

Per capita income

$177,300

Median home value

$982

Median monthly rent

81.7%

Home ownership

9.6%

Poverty rate

5.0%

Unemployment

759

Housing units

15.5%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

139

25–34

127

123

35–44

112

197

45–54

179

55–59

60–64

111

65–74

102

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	444	20.4%
18 and over	1,733	79.6%
65 and over	332	15.3%
Median age	42.8 years

Race & ethnicity

White 90.7%

Black or African American 2.9%

Hispanic or Latino 2.5%

Two or more races 2.3%

American Indian / Alaska Native 0.6%

Other race 0.6%

Asian 0.4%

Group	Count	%
White	2,025	90.7%
Black or African American	65	2.9%
Hispanic or Latino	56	2.5%
Two or more races	51	2.3%
American Indian / Alaska Native	14	0.6%
Other race	13	0.6%
Asian	9	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	38.7%	39.7%	39.4%
$50k – $100k	34.3%	37.8%	33.0%
$100k – $200k	26.1%	20.0%	22.4%
Over $200k	0.8%	2.6%	5.2%

Under $10k 4.1%

$10k–$15k 3.4%

$15k–$25k 4.6%

$25k–$35k 9.4%

$35k–$50k 11.4%

$50k–$75k 16.4%

$75k–$100k 15.8%

$100k–$150k 25.5%

$150k–$200k 5.9%

$200k+ 3.5%

Range	% of households
Under $10k	4.1%
$10k–$15k	3.4%
$15k–$25k	4.6%
$25k–$35k	9.4%
$35k–$50k	11.4%
$50k–$75k	16.4%
$75k–$100k	15.8%
$100k–$150k	25.5%
$150k–$200k	5.9%
$200k+	3.5%
Median income	$75,833

Housing

Home values

Under $50k 14.1%

$50k–$100k 13.5%

$100k–$150k 9.1%

$150k–$200k 18.7%

$200k–$300k 30.9%

$300k–$500k 10.6%

$500k–$1M 2.1%

$1M+ 1.0%

Housing overview

Metric	Value
Median home value	$177,300
Median rent / month	$982
Owner occupied	81.7%
Renter occupied	18.3%
Vacant	4.7%
Single-family detached	64.1%
Large apartment buildings	0.3%
Mobile homes	22.9%
Median rooms	6.1
Avg household size (owned)	2.46

Year built

Era	%
2020 or later	0.5%
2010–2019	2.0%
2000–2009	13.5%
1990–1999	28.9%
1980–1989	3.5%
1970–1979	11.1%
1960–1969	3.0%
1950–1959	4.1%
1940–1949	1.5%
1939 or earlier	31.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.7%
1 bedroom	7.8%
2 bedrooms	13.7%
3 bedrooms	50.5%
4 bedrooms	21.4%
5+ bedrooms	5.9%

Vehicles per household

Vehicles	% of households
No vehicle	3.4%
1 vehicle	21.6%
2 vehicles	42.2%
3 or more	32.8%

Heating fuel

Fuel type	%
Utility gas	56.1%
Electricity	11.5%
Propane / LP gas	26.3%
Fuel oil	3.2%
Wood	2.6%

Households & families

Household type	Count	%
Married-couple family	510	58.2%
Cohabiting couple	85	9.7%
Male householder, no spouse	144	16.4%
Female householder, no spouse	137	15.6%
Households with children under 18	243	27.7%
Households with seniors (65+)	260	29.7%
Average household size	2.49

Marital status

Status	Male	Female
Never married	32.5%	23.9%
Married	54.5%	56.4%
Separated	0.5%	0.0%
Widowed	1.4%	10.6%
Divorced	11.1%	9.2%

Education

Less than 9th grade 1.7%

Some HS, no diploma 5.3%

HS graduate 42.6%

Some college, no degree 22.3%

Associate's degree 12.7%

Bachelor's degree 11.3%

Graduate / professional 4.1%

Metric	%
HS diploma or higher	93.1%
Bachelor's or higher	15.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	62	14.1%
Kindergarten	32	7.3%
Elementary school	139	31.5%
High school	112	25.4%
College / grad school	96	21.8%

Employment

Industry of employment

Manufacturing 29.2%

Education & healthcare 15.8%

Retail trade 12.7%

Construction 7.7%

Other services 7.0%

Agriculture & mining 6.4%

Public administration 5.2%

Professional & management 4.7%

Transportation & utilities 4.2%

Finance & real estate 3.0%

Arts, food & hospitality 2.6%

Wholesale trade 1.2%

Information 0.2%

Occupation

Category	%
Management, business & arts	25.1%
Service	17.6%
Sales & office	12.7%
Natural resources & construction	14.1%
Production & transportation	30.5%

Employment type

Type	%
Private sector	83.3%
Government	10.6%
Self-employed	6.0%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	80.1%
Carpool	6.6%
Public transit	0.0%
Walk	5.0%
Work from home	7.6%
Other means	0.7%
Avg commute (minutes)	27.9

Poverty

All people 9.6%

Under 18 years 8.4%

18 and over 9.9%

Married-couple families 0.4%

Female-led households 23.1%

Income support

Source	% of households
Social Security	33.1%
Retirement income	21.7%
Supplemental Security	3.1%
Cash public assistance	0.9%
Food stamps / SNAP	9.8%

Health indicators

Condition	%
Obesity	36.8%
High blood pressure	30.3%
High cholesterol	33.3%
Diabetes	9.0%
Heart disease	6.1%
Stroke	2.8%
Asthma	9.7%
Arthritis	24.1%
Kidney disease	2.7%
Pulmonary disease	6.3%
Cancer	6.9%

Behavior / access	%
Smoking	18.3%
Binge drinking	24.7%
No physical activity	20.5%
Less than 7 hrs sleep	32.1%
Depression	20.0%
Fair or poor health	11.8%
Poor mental health	13.5%
Poor physical health	9.8%
No health insurance	10.2%
Visited doctor (checkup)	73.4%
Visited dentist	71.0%
Cholesterol screening	87.5%
Teeth loss	12.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	125	7.2%

Disability	%
Any disability	10.8%
Under 18	3.6%
18–64 years	9.9%
65 and over	24.4%

Health insurance coverage

Type	%
Private insurance	80.4%
Public insurance	31.6%
No insurance	2.3%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,037	93.6%
Spanish	20	1.0%
Other Indo-European	10	0.5%
Asian & Pacific Islander	7	0.3%
Other languages	3	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,138	98.2%
Born in same state	2,138	98.2%
Born in different state	1,880	86.4%
Foreign born	0	0.0%
Naturalized citizen	39	1.8%
Not a US citizen	9	23.1%

Ancestry

Ancestry	Count	%
Italian	152	7%
Arab	69	3.2%
Polish	65	3%
French	51	2.3%

Ancestry	Count	%
English	42	1.9%
Dutch	30	1.4%
German	13	0.6%
Irish	8	0.4%

Technology access

Metric	% of households
Computer access	40.2%
Internet access	90.1%

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

Frequently asked questions about ZIP code 53091

What city is ZIP code 53091 in?

ZIP code 53091 is primarily assigned to Theresa, Wisconsin.

What county is ZIP code 53091 in?

ZIP code 53091 falls within Dodge County, Wisconsin.

Is ZIP code 53091 mostly owner-occupied?

82% of occupied units in ZIP code 53091 are owner-occupied, well above the national average.

What is the typical home value in ZIP code 53091?

The median home value in ZIP code 53091 is $177,300.

What is the population of ZIP code 53091?

ZIP code 53091 has an estimated population of 2,177 residents, with a density of 85 people per square mile.

What is the median household income in ZIP code 53091?

The median household income in ZIP code 53091 is $75,833, above the national median of ~$75,000.

What timezone is ZIP code 53091 in?

ZIP code 53091 observes the CST timezone.