54479 ZIP Code — Spencer, WI

Marathon County, Wisconsin

ZIP code 54479 is located in Spencer, Wisconsin, within Marathon County. It covers approximately 76.79 square miles and serves a population of 3,607 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 715.

About ZIP code 54479

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 $164,000. Owner-occupancy is high at 80%, well above the national average.

Median household income is $76,250. The poverty rate of 6% is below the national average. 31% 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 19 minutes is near the national average.

College attainment at 17% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 54479 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

3,607

population

76.79

sq mi land

Standard

ZIP type

Central (CT)

timezone

54479 ZIP code map

Cities in ZIP code 54479

Below are the cities the US Postal Service accepts for ZIP code 54479. Using any city not on this list may result in mail delivery delays.

City	Status
Spencer	Acceptable
Spencer	Preferred

Nearby ZIP codes

54488 Unity (5.4 mi) 54446 Loyal (6.3 mi) 54404 Marshfield (9.5 mi) 54449 Marshfield (10.3 mi) 54421 Colby (10.6 mi) 54420 Chili (10.8 mi) 54484 Stratford (12.9 mi) 54436 Granton (14.4 mi) 54405 Abbotsford (15.5 mi) 54437 Greenwood (16.3 mi) 54422 Curtiss (16.5 mi) 54412 Auburndale (16.9 mi)

Demographics updated 05/2026

Population
Total population	3,607
Population density	47 / sq mi
State FIPS	55
County FIPS	073

Geography
Land area	76.79 sq mi
Water area	0.09 sq mi
Latitude	44.7512
Longitude	-90.3273
Timezone	Central (CT)
Area code	715

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	35.4%	39.2%	39.4%
$50k – $100k	41.6%	36.4%	33.0%
$100k – $200k	20.9%	20.1%	22.4%
Over $200k	2.1%	4.3%	5.2%

Demographics & statistics

3,607

Population

People per sq mi

36.2

Median age

$76,250

Median household income

$32,501

Per capita income

$164,000

Median home value

$492

Median monthly rent

79.8%

Home ownership

5.9%

Poverty rate

1.3%

Unemployment

1,145

Housing units

17.4%

Bachelor's or higher

Age distribution

Male Female

117

Under 5

104

105

5–9

161

10–14

143

149

15–19

132

110

20–24

265

25–34

236

214

35–44

189

272

45–54

242

107

55–59

107

60–64

162

65–74

143

100

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	931	25.8%
18 and over	2,676	74.2%
65 and over	575	15.9%
Median age	36.2 years

Race & ethnicity

White 95.4%

Two or more races 2.2%

Hispanic or Latino 1.2%

Other race 0.9%

Black or African American 0.2%

American Indian / Alaska Native 0.1%

Group	Count	%
White	3,483	95.4%
Two or more races	82	2.2%
Hispanic or Latino	45	1.2%
Other race	33	0.9%
Black or African American	7	0.2%
American Indian / Alaska Native	2	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	35.4%	39.2%	39.4%
$50k – $100k	41.6%	36.4%	33.0%
$100k – $200k	20.9%	20.1%	22.4%
Over $200k	2.1%	4.3%	5.2%

Under $10k 3.6%

$10k–$15k 0.9%

$15k–$25k 4.0%

$25k–$35k 8.3%

$35k–$50k 12.0%

$50k–$75k 20.4%

$75k–$100k 22.3%

$100k–$150k 18.0%

$150k–$200k 7.6%

$200k+ 2.9%

Range	% of households
Under $10k	3.6%
$10k–$15k	0.9%
$15k–$25k	4.0%
$25k–$35k	8.3%
$35k–$50k	12.0%
$50k–$75k	20.4%
$75k–$100k	22.3%
$100k–$150k	18.0%
$150k–$200k	7.6%
$200k+	2.9%
Median income	$76,250

Housing

Home values

Under $50k 4.4%

$50k–$100k 16.3%

$100k–$150k 20.6%

$150k–$200k 21.2%

$200k–$300k 21.0%

$300k–$500k 10.8%

$500k–$1M 4.2%

$1M+ 1.5%

Housing overview

Metric	Value
Median home value	$164,000
Median rent / month	$492
Owner occupied	79.8%
Renter occupied	20.2%
Vacant	3.7%
Single-family detached	80.2%
Large apartment buildings	0.9%
Mobile homes	5.8%
Median rooms	6.0
Avg household size (owned)	2.73

Year built

Era	%
2020 or later	0.0%
2010–2019	3.9%
2000–2009	14.4%
1990–1999	8.3%
1980–1989	9.4%
1970–1979	16.7%
1960–1969	7.9%
1950–1959	12.5%
1940–1949	4.6%
1939 or earlier	22.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.9%
1 bedroom	4.4%
2 bedrooms	23.8%
3 bedrooms	46.4%
4 bedrooms	16.5%
5+ bedrooms	7.9%

Vehicles per household

Vehicles	% of households
No vehicle	3.5%
1 vehicle	24.2%
2 vehicles	41.2%
3 or more	31.0%

Heating fuel

Fuel type	%
Utility gas	41.8%
Electricity	12.6%
Propane / LP gas	25.3%
Fuel oil	9.5%
Wood	9.9%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	788	57.5%
Cohabiting couple	105	7.7%
Male householder, no spouse	241	17.6%
Female householder, no spouse	236	17.2%
Households with children under 18	478	34.9%
Households with seniors (65+)	414	30.2%
Average household size	2.63

Marital status

Status	Male	Female
Never married	34.9%	21.7%
Married	52.3%	57.6%
Separated	0.0%	0.5%
Widowed	2.3%	4.9%
Divorced	10.4%	15.4%

Education

Less than 9th grade 6.7%

Some HS, no diploma 8.8%

HS graduate 38.5%

Some college, no degree 17.4%

Associate's degree 11.3%

Bachelor's degree 13.6%

Graduate / professional 3.8%

Metric	%
HS diploma or higher	84.6%
Bachelor's or higher	17.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	29	3.6%
Kindergarten	29	3.6%
Elementary school	403	50.1%
High school	243	30.2%
College / grad school	101	12.5%

Employment

Industry of employment

Manufacturing 23.9%

Education & healthcare 23.8%

Retail trade 11.3%

Agriculture & mining 7.5%

Construction 7.0%

Other services 5.7%

Transportation & utilities 5.0%

Finance & real estate 4.1%

Arts, food & hospitality 4.0%

Professional & management 3.2%

Wholesale trade 3.0%

Public administration 1.4%

Information 0.2%

Occupation

Category	%
Management, business & arts	28.0%
Service	11.0%
Sales & office	20.0%
Natural resources & construction	13.4%
Production & transportation	27.5%

Employment type

Type	%
Private sector	83.2%
Government	7.3%
Self-employed	9.1%
Unpaid family workers	0.4%

Commute

Method	%
Drive alone	75.9%
Carpool	5.6%
Public transit	0.0%
Walk	6.2%
Work from home	9.1%
Other means	3.2%
Avg commute (minutes)	19.0

Poverty

All people 5.9%

Under 18 years 8.9%

18 and over 4.8%

Married-couple families 2.0%

Female-led households 12.1%

Income support

Source	% of households
Social Security	30.6%
Retirement income	24.1%
Supplemental Security	4.5%
Cash public assistance	1.2%
Food stamps / SNAP	8.2%

Health indicators

Condition	%
Obesity	35.8%
High blood pressure	29.2%
High cholesterol	32.2%
Diabetes	9.0%
Heart disease	5.8%
Stroke	2.7%
Asthma	9.9%
Arthritis	23.5%
Kidney disease	2.6%
Pulmonary disease	6.3%
Cancer	6.4%

Behavior / access	%
Smoking	19.9%
Binge drinking	25.9%
No physical activity	21.4%
Less than 7 hrs sleep	32.1%
Depression	20.2%
Fair or poor health	12.5%
Poor mental health	14.1%
Poor physical health	10.0%
No health insurance	11.4%
Visited doctor (checkup)	72.2%
Visited dentist	67.4%
Cholesterol screening	85.6%
Teeth loss	12.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	159	6.0%

Disability	%
Any disability	10.1%
Under 18	2.5%
18–64 years	8.3%
65 and over	29.1%

Health insurance coverage

Type	%
Private insurance	68.2%
Public insurance	31.9%
No insurance	13.4%
Uninsured under 19	8.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,386	93.9%
Spanish	70	2.1%
Other Indo-European	20	0.6%
Asian & Pacific Islander	50	1.5%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,535	98.0%
Born in same state	3,535	98.0%
Born in different state	2,960	82.1%
Foreign born	0	0.0%
Naturalized citizen	72	2.0%
Not a US citizen	6	8.3%

Ancestry

Ancestry	Count	%
Italian	370	10.3%
French	166	4.6%
Polish	143	4%
Arab	121	3.4%

Ancestry	Count	%
English	37	1%
Dutch	23	0.6%
Irish	21	0.6%
German	5	0.1%

Technology access

Metric	% of households
Computer access	38.0%
Internet access	90.1%

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

Frequently asked questions about ZIP code 54479

What city is ZIP code 54479 in?

ZIP code 54479 is primarily assigned to Spencer, Wisconsin.

What county is ZIP code 54479 in?

ZIP code 54479 falls within Marathon County, Wisconsin.

What is the typical home value in ZIP code 54479?

The median home value in ZIP code 54479 is $164,000.

What is the population of ZIP code 54479?

ZIP code 54479 has an estimated population of 3,607 residents, with a density of 47 people per square mile.

What is the median household income in ZIP code 54479?

The median household income in ZIP code 54479 is $76,250, above the national median of ~$75,000.

What timezone is ZIP code 54479 in?

ZIP code 54479 observes the CST timezone.