54121 ZIP Code — Florence, WI

Florence County, Wisconsin

ZIP code 54121 is located in Florence, Wisconsin, within Florence County. It covers approximately 272.14 square miles and serves a population of 3,165 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 715.

About ZIP code 54121

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 $162,200. Owner-occupancy is high at 89%, well above the national average.

Median household income is $55,274. 53% 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 20 minutes is near the national average.

Educational attainment is near the national average, with 24% of residents holding a bachelor's degree or higher.

Overall, ZIP code 54121 reflects a community defined by high homeownership and a significant Social Security-dependent population.

3,165

population

272.14

sq mi land

Standard

ZIP type

Central (CT)

timezone

54121 ZIP code map

Cities in ZIP code 54121

Below are the cities the US Postal Service accepts for ZIP code 54121. Using any city not on this list may result in mail delivery delays.

City	Status
Florence	Preferred

Nearby ZIP codes

54120 Fence (10.8 mi) 49802 Kingsford (12.7 mi) 54103 Armstrong Creek (15.6 mi) 49876 Quinnesec (15.9 mi) 49927 Gaastra (16.3 mi) 54125 Goodman (16.3 mi) 49801 Iron Mountain (17.6 mi) 54119 Dunbar (18.5 mi) 54151 Niagara (18.9 mi) 49870 Norway (19.4 mi)

Demographics updated 05/2026

Population
Total population	3,165
Population density	12 / sq mi
State FIPS	55
County FIPS	037

Geography
Land area	272.14 sq mi
Water area	6.02 sq mi
Latitude	45.8697
Longitude	-88.3153
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	47.2%	50.2%	39.4%
$50k – $100k	34.9%	32.3%	33.0%
$100k – $200k	14.7%	14.7%	22.4%
Over $200k	3.3%	2.8%	5.2%

Demographics & statistics

3,165

Population

People per sq mi

55.7

Median age

$55,274

Median household income

$38,072

Per capita income

$162,200

Median home value

$531

Median monthly rent

89.4%

Home ownership

10.6%

Poverty rate

7.4%

Unemployment

3,066

Housing units

23.7%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

134

25–34

124

164

35–44

150

158

45–54

146

229

55–59

210

177

60–64

163

266

65–74

244

149

75–84

137

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	540	17.1%
18 and over	2,625	82.9%
65 and over	855	27.0%
Median age	55.7 years

Race & ethnicity

White 96.4%

Two or more races 1.8%

American Indian / Alaska Native 0.9%

Black or African American 0.6%

Hispanic or Latino 0.3%

Group	Count	%
White	3,060	96.4%
Two or more races	56	1.8%
American Indian / Alaska Native	29	0.9%
Black or African American	20	0.6%
Hispanic or Latino	8	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	47.2%	50.2%	39.4%
$50k – $100k	34.9%	32.3%	33.0%
$100k – $200k	14.7%	14.7%	22.4%
Over $200k	3.3%	2.8%	5.2%

Under $10k 2.5%

$10k–$15k 7.8%

$15k–$25k 9.1%

$25k–$35k 10.5%

$35k–$50k 15.1%

$50k–$75k 22.6%

$75k–$100k 13.0%

$100k–$150k 13.5%

$150k–$200k 2.7%

$200k+ 3.4%

Range	% of households
Under $10k	2.5%
$10k–$15k	7.8%
$15k–$25k	9.1%
$25k–$35k	10.5%
$35k–$50k	15.1%
$50k–$75k	22.6%
$75k–$100k	13.0%
$100k–$150k	13.5%
$150k–$200k	2.7%
$200k+	3.4%
Median income	$55,274

Housing

Home values

Under $50k 14.7%

$50k–$100k 10.1%

$100k–$150k 18.7%

$150k–$200k 16.6%

$200k–$300k 18.2%

$300k–$500k 15.1%

$500k–$1M 6.3%

$1M+ 0.2%

Housing overview

Metric	Value
Median home value	$162,200
Median rent / month	$531
Owner occupied	89.4%
Renter occupied	10.6%
Vacant	54.8%
Single-family detached	88.1%
Large apartment buildings	1.9%
Mobile homes	8.2%
Median rooms	5.1
Avg household size (owned)	2.19

Year built

Era	%
2020 or later	0.3%
2010–2019	6.7%
2000–2009	15.5%
1990–1999	12.8%
1980–1989	11.4%
1970–1979	12.5%
1960–1969	8.4%
1950–1959	9.2%
1940–1949	6.1%
1939 or earlier	17.2%

Bedrooms

Size	% of units
No bedroom (studio)	3.7%
1 bedroom	8.6%
2 bedrooms	38.2%
3 bedrooms	33.8%
4 bedrooms	12.5%
5+ bedrooms	3.2%

Vehicles per household

Vehicles	% of households
No vehicle	3.8%
1 vehicle	28.7%
2 vehicles	43.9%
3 or more	23.6%

Heating fuel

Fuel type	%
Utility gas	51.1%
Electricity	3.9%
Propane / LP gas	29.4%
Fuel oil	3.6%
Wood	10.2%
No fuel used	0.4%

Households & families

Household type	Count	%
Married-couple family	754	51.8%
Cohabiting couple	93	6.4%
Male householder, no spouse	336	23.1%
Female householder, no spouse	274	18.8%
Households with children under 18	252	17.3%
Households with seniors (65+)	593	40.7%
Average household size	2.13

Marital status

Status	Male	Female
Never married	24.1%	12.2%
Married	54.8%	61.5%
Separated	0.4%	1.2%
Widowed	6.0%	12.1%
Divorced	14.6%	13.0%

Education

Less than 9th grade 2.6%

Some HS, no diploma 6.1%

HS graduate 37.0%

Some college, no degree 22.0%

Associate's degree 8.6%

Bachelor's degree 17.5%

Graduate / professional 6.1%

Metric	%
HS diploma or higher	91.3%
Bachelor's or higher	23.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	27	5.4%
Kindergarten	17	3.4%
Elementary school	268	53.3%
High school	116	23.1%
College / grad school	75	14.9%

Employment

Industry of employment

Education & healthcare 16.6%

Manufacturing 15.7%

Construction 11.7%

Retail trade 11.0%

Agriculture & mining 8.1%

Professional & management 7.4%

Finance & real estate 6.5%

Transportation & utilities 5.6%

Other services 4.8%

Arts, food & hospitality 4.6%

Public administration 4.1%

Wholesale trade 2.8%

Information 1.0%

Occupation

Category	%
Management, business & arts	25.1%
Service	15.4%
Sales & office	18.6%
Natural resources & construction	17.5%
Production & transportation	23.3%

Employment type

Type	%
Private sector	75.1%
Government	15.7%
Self-employed	9.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	82.8%
Carpool	5.4%
Public transit	0.5%
Walk	1.8%
Work from home	9.5%
Other means	0.0%
Avg commute (minutes)	20.4

Poverty

All people 10.6%

Under 18 years 10.4%

18 and over 10.6%

Married-couple families 5.3%

Female-led households 13.7%

Income support

Source	% of households
Social Security	52.9%
Retirement income	34.7%
Supplemental Security	5.9%
Cash public assistance	2.5%
Food stamps / SNAP	14.2%

Health indicators

Condition	%
Obesity	36.1%
High blood pressure	36.3%
High cholesterol	37.8%
Diabetes	11.3%
Heart disease	7.9%
Stroke	3.6%
Asthma	9.8%
Arthritis	29.5%
Kidney disease	3.4%
Pulmonary disease	7.8%
Cancer	8.3%

Behavior / access	%
Smoking	18.7%
Binge drinking	21.9%
No physical activity	23.2%
Less than 7 hrs sleep	32.2%
Depression	19.9%
Fair or poor health	14.0%
Poor mental health	12.8%
Poor physical health	11.4%
No health insurance	9.8%
Visited doctor (checkup)	76.8%
Visited dentist	67.3%
Cholesterol screening	89.9%
Teeth loss	12.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	285	10.9%

Disability	%
Any disability	18.7%
Under 18	8.3%
18–64 years	16.5%
65 and over	30.5%

Health insurance coverage

Type	%
Private insurance	60.6%
Public insurance	48.6%
No insurance	8.2%
Uninsured under 19	6.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,029	95.7%
Spanish	3	0.1%
Other Indo-European	2	0.1%
Asian & Pacific Islander	1	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,157	99.7%
Born in same state	3,126	98.8%
Born in different state	1,313	41.5%
Foreign born	31	1.0%
Naturalized citizen	8	0.3%
Not a US citizen	6	75.0%

Ancestry

Ancestry	Count	%
Italian	335	10.6%
French	278	8.8%
Polish	134	4.2%
German	88	2.8%
English	80	2.5%

Ancestry	Count	%
Norwegian	60	1.9%
Arab	51	1.6%
Dutch	44	1.4%
Irish	2	0.1%

Technology access

Metric	% of households
Computer access	46.0%
Internet access	91.1%

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

Frequently asked questions about ZIP code 54121

What city is ZIP code 54121 in?

ZIP code 54121 is primarily assigned to Florence, Wisconsin.

What county is ZIP code 54121 in?

ZIP code 54121 falls within Florence County, Wisconsin.

Does ZIP code 54121 have a large retiree population?

53% of households in ZIP code 54121 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 54121 have an older population?

27% of residents in ZIP code 54121 are 65 or older, above the national average of ~17%.

Is ZIP code 54121 mostly owner-occupied?

89% of occupied units in ZIP code 54121 are owner-occupied, well above the national average.

Does ZIP code 54121 have a large veteran population?

11% of civilians in ZIP code 54121 are veterans, above the national average of ~7%.

What timezone is ZIP code 54121 in?

ZIP code 54121 observes the CST timezone.