54542 ZIP Code — Long Lake, WI

Florence County, Wisconsin

ZIP code 54542 is located in Long Lake, Wisconsin, within Florence County. It covers approximately 267.68 square miles and serves a population of 648 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 715.

About ZIP code 54542

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $138,000. Owner-occupancy is high at 90%, well above the national average.

Median household income is $45,469. 53% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is natural resources, construction, and trades, with construction as the leading industry. The average commute of 26 minutes is near the national average.

College attainment at 12% is below the national average, consistent with a trades and production-oriented local economy.

Notable community characteristics include a notable veteran presence at 16% of civilians, above the national average of 7%.

Overall, ZIP code 54542 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, and a significant Social Security-dependent population.

648

population

267.68

sq mi land

Standard

ZIP type

Central (CT)

timezone

54542 ZIP code map

Cities in ZIP code 54542

Below are the cities the US Postal Service accepts for ZIP code 54542. Using any city not on this list may result in mail delivery delays.

City	Status
Long Lake	Acceptable
Long Lake	Preferred

Nearby ZIP codes

49927 Gaastra (12.2 mi) 54511 Argonne (13.9 mi) 54554 Phelps (16.9 mi) 54562 Three Lakes (17.2 mi) 54120 Fence (18.7 mi) 49935 Iron River (19.1 mi)

Demographics updated 05/2026

Population
Total population	648
Population density	2 / sq mi
State FIPS	55
County FIPS	037

Geography
Land area	267.68 sq mi
Water area	3.94 sq mi
Latitude	45.9270
Longitude	-88.7664
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	67.4%	50.2%	39.4%
$50k – $100k	16.7%	32.3%	33.0%
$100k – $200k	15.5%	14.7%	22.4%
Over $200k	0.4%	2.8%	5.2%

Demographics & statistics

648

Population

People per sq mi

50.7

Median age

$45,469

Median household income

$26,581

Per capita income

$138,000

Median home value

Median monthly rent

90.0%

Home ownership

10.3%

Poverty rate

0.0%

Unemployment

1,100

Housing units

11.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	113	17.4%
18 and over	535	82.6%
65 and over	161	24.8%
Median age	50.7 years

Race & ethnicity

White 71.9%

Two or more races 19.7%

Hispanic or Latino 7.4%

American Indian / Alaska Native 1%

Group	Count	%
White	503	71.9%
Two or more races	138	19.7%
Hispanic or Latino	52	7.4%
American Indian / Alaska Native	7	1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	67.4%	50.2%	39.4%
$50k – $100k	16.7%	32.3%	33.0%
$100k – $200k	15.5%	14.7%	22.4%
Over $200k	0.4%	2.8%	5.2%

Under $10k 8.8%

$10k–$15k 5.0%

$15k–$25k 9.2%

$25k–$35k 10.7%

$35k–$50k 19.5%

$50k–$75k 8.8%

$75k–$100k 16.5%

$100k–$150k 11.9%

$150k–$200k 6.9%

$200k+ 2.7%

Range	% of households
Under $10k	8.8%
$10k–$15k	5.0%
$15k–$25k	9.2%
$25k–$35k	10.7%
$35k–$50k	19.5%
$50k–$75k	8.8%
$75k–$100k	16.5%
$100k–$150k	11.9%
$150k–$200k	6.9%
$200k+	2.7%
Median income	$45,469

Housing

Home values

Under $50k 6.0%

$50k–$100k 32.3%

$100k–$150k 16.6%

$150k–$200k 23.8%

$200k–$300k 15.7%

$300k–$500k 5.1%

$500k–$1M 0.4%

Housing overview

Metric	Value
Median home value	$138,000
Median rent / month	$0
Owner occupied	90.0%
Renter occupied	10.0%
Vacant	76.8%
Single-family detached	86.5%
Large apartment buildings	0.0%
Mobile homes	12.9%
Median rooms	4.1
Avg household size (owned)	2.36

Year built

Era	%
2020 or later	0.0%
2010–2019	4.1%
2000–2009	19.0%
1990–1999	17.1%
1980–1989	15.9%
1970–1979	12.1%
1960–1969	8.2%
1950–1959	6.6%
1940–1949	9.7%
1939 or earlier	7.4%

Bedrooms

Size	% of units
No bedroom (studio)	10.7%
1 bedroom	11.9%
2 bedrooms	41.3%
3 bedrooms	31.3%
4 bedrooms	4.4%
5+ bedrooms	0.4%

Vehicles per household

Vehicles	% of households
No vehicle	0.4%
1 vehicle	20.3%
2 vehicles	52.1%
3 or more	27.2%

Heating fuel

Fuel type	%
Utility gas	0.8%
Electricity	4.2%
Propane / LP gas	74.3%
Fuel oil	1.9%
Wood	18.0%

Households & families

Household type	Count	%
Married-couple family	140	53.6%
Cohabiting couple	22	8.4%
Male householder, no spouse	74	28.4%
Female householder, no spouse	25	9.6%
Households with children under 18	43	16.5%
Households with seniors (65+)	125	47.9%
Average household size	2.48

Marital status

Status	Male	Female
Never married	35.2%	27.1%
Married	46.0%	51.7%
Separated	0.7%	3.0%
Widowed	5.6%	7.8%
Divorced	12.5%	10.4%

Education

Less than 9th grade 0.4%

Some HS, no diploma 9.1%

HS graduate 38.4%

Some college, no degree 31.2%

Associate's degree 9.3%

Bachelor's degree 9.9%

Graduate / professional 1.7%

Metric	%
HS diploma or higher	90.5%
Bachelor's or higher	11.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	2	1.7%
Kindergarten	0	0.0%
Elementary school	72	61.0%
High school	31	26.3%
College / grad school	13	11.0%

Employment

Industry of employment

Construction 25.6%

Manufacturing 13.7%

Retail trade 13.2%

Transportation & utilities 9.4%

Education & healthcare 9.4%

Agriculture & mining 5.6%

Professional & management 5.1%

Finance & real estate 4.7%

Arts, food & hospitality 4.3%

Public administration 3.8%

Information 2.6%

Other services 2.6%

Occupation

Category	%
Management, business & arts	12.0%
Service	12.0%
Sales & office	24.4%
Natural resources & construction	26.9%
Production & transportation	24.8%

Employment type

Type	%
Private sector	74.4%
Government	13.7%
Self-employed	12.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	85.3%
Carpool	1.3%
Public transit	0.0%
Walk	7.3%
Work from home	6.0%
Other means	0.0%
Avg commute (minutes)	26.0

Poverty

All people 10.3%

Under 18 years 6.2%

18 and over 11.2%

Married-couple families 6.4%

Female-led households 0.0%

Income support

Source	% of households
Social Security	53.3%
Retirement income	35.2%
Supplemental Security	4.6%
Cash public assistance	0.0%
Food stamps / SNAP	10.3%

Health indicators

Condition	%
Obesity	35.4%
High blood pressure	41.5%
High cholesterol	41.5%
Diabetes	13.0%
Heart disease	9.7%
Stroke	4.2%
Asthma	9.4%
Arthritis	34.2%
Kidney disease	3.9%
Pulmonary disease	8.7%
Cancer	10.2%

Behavior / access	%
Smoking	17.4%
Binge drinking	18.8%
No physical activity	24.0%
Less than 7 hrs sleep	30.3%
Depression	19.0%
Fair or poor health	15.0%
Poor mental health	11.5%
Poor physical health	12.1%
No health insurance	9.2%
Visited doctor (checkup)	79.3%
Visited dentist	68.5%
Cholesterol screening	92.6%
Teeth loss	12.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	87	16.3%

Disability	%
Any disability	19.8%
Under 18	2.7%
18–64 years	16.6%
65 and over	39.1%

Health insurance coverage

Type	%
Private insurance	67.4%
Public insurance	44.0%
No insurance	7.1%
Uninsured under 19	2.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	640	98.8%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	648	100.0%
Born in same state	648	100.0%
Born in different state	494	76.2%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	101	15.6%
Polish	45	6.9%
French	41	6.3%
English	33	5.1%

Ancestry	Count	%
Arab	18	2.8%
German	9	1.4%
Dutch	3	0.5%
Norwegian	1	0.2%

Technology access

Metric	% of households
Computer access	40.3%
Internet access	92.7%

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

Frequently asked questions about ZIP code 54542

What city is ZIP code 54542 in?

ZIP code 54542 is primarily assigned to Long Lake, Wisconsin.

What county is ZIP code 54542 in?

ZIP code 54542 falls within Florence County, Wisconsin.

Does ZIP code 54542 have a large retiree population?

53% of households in ZIP code 54542 receive Social Security income, suggesting a significant retiree or disability population.

Is ZIP code 54542 mostly owner-occupied?

90% of occupied units in ZIP code 54542 are owner-occupied, well above the national average.

How educated is the population of ZIP code 54542?

12% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 54542 have a large veteran population?

16% of civilians in ZIP code 54542 are veterans, above the national average of ~7%.

What timezone is ZIP code 54542 in?

ZIP code 54542 observes the CST timezone.