04862 ZIP Code — Union, ME

Knox County, Maine

ZIP code 04862 is located in Union, Maine, within Knox County. It covers approximately 64.86 square miles and serves a population of 4,130 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 207.

About ZIP code 04862

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 $225,300. Owner-occupancy is high at 88%, well above the national average.

Median household income is $62,500. SNAP benefit usage at 17% of households reflects economic stress in the area. 52% 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 34 minutes is near the national average.

Educational attainment is near the national average, with 33% of residents holding a bachelor's degree or higher.

Notable community characteristics include a notable veteran presence at 11% of civilians, above the national average of 7%.

Overall, ZIP code 04862 reflects a community defined by a strong veteran community, high homeownership, a significant Social Security-dependent population, and elevated reliance on food assistance.

4,130

population

64.86

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

04862 ZIP code map

Cities in ZIP code 04862

Below are the cities the US Postal Service accepts for ZIP code 04862. Using any city not on this list may result in mail delivery delays.

City	Status
Union	Acceptable
Union	Preferred

Nearby ZIP codes

04847 Hope (4.6 mi) 04574 Washington (5.4 mi) 04949 Liberty (7.6 mi) 04973 Searsmont (7.6 mi) 04843 Camden (9.8 mi) 04864 Warren (9.8 mi) 04856 Rockport (10 mi) 04849 Lincolnville (11 mi) 04348 Jefferson (11.2 mi) 04952 Morrill (11.3 mi) 04354 Palermo (11.5 mi) 04572 Waldoboro (11.6 mi)

Demographics updated 05/2026

Population
Total population	4,130
Population density	64 / sq mi
State FIPS	23
County FIPS	013

Geography
Land area	64.86 sq mi
Water area	3.06 sq mi
Latitude	44.2658
Longitude	-69.2796
Timezone	Eastern (ET)
Area code	207

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	46.8%	42.0%	42.3%
$50k – $100k	35.5%	34.5%	32.3%
$100k – $200k	16.8%	19.0%	20.6%
Over $200k	0.9%	4.6%	4.9%

Demographics & statistics

4,130

Population

People per sq mi

42.5

Median age

$62,500

Median household income

$30,382

Per capita income

$225,300

Median home value

$873

Median monthly rent

88.0%

Home ownership

13.9%

Poverty rate

4.2%

Unemployment

1,797

Housing units

32.5%

Bachelor's or higher

Age distribution

Male Female

163

Under 5

195

5–9

116

10–14

116

132

15–19

159

20–24

205

25–34

247

204

35–44

245

221

45–54

266

123

55–59

148

103

60–64

124

261

65–74

313

163

75–84

196

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,006	24.4%
18 and over	3,124	75.6%
65 and over	1,008	24.4%
Median age	42.5 years

Race & ethnicity

White 93.3%

Two or more races 4.7%

Hispanic or Latino 0.7%

American Indian / Alaska Native 0.6%

Black or African American 0.5%

Asian 0.1%

Native Hawaiian / Pacific Islander 0.1%

Group	Count	%
White	3,882	93.3%
Two or more races	194	4.7%
Hispanic or Latino	29	0.7%
American Indian / Alaska Native	26	0.6%
Black or African American	20	0.5%
Asian	4	0.1%
Native Hawaiian / Pacific Islander	4	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	46.8%	42.0%	42.3%
$50k – $100k	35.5%	34.5%	32.3%
$100k – $200k	16.8%	19.0%	20.6%
Over $200k	0.9%	4.6%	4.9%

Under $10k 8.9%

$10k–$15k 3.7%

$15k–$25k 5.8%

$25k–$35k 10.6%

$35k–$50k 15.3%

$50k–$75k 13.1%

$75k–$100k 15.5%

$100k–$150k 16.5%

$150k–$200k 7.5%

$200k+ 3.1%

Range	% of households
Under $10k	8.9%
$10k–$15k	3.7%
$15k–$25k	5.8%
$25k–$35k	10.6%
$35k–$50k	15.3%
$50k–$75k	13.1%
$75k–$100k	15.5%
$100k–$150k	16.5%
$150k–$200k	7.5%
$200k+	3.1%
Median income	$62,500

Housing

Home values

Under $50k 13.7%

$50k–$100k 3.8%

$100k–$150k 7.5%

$150k–$200k 14.3%

$200k–$300k 33.4%

$300k–$500k 19.3%

$500k–$1M 8.0%

Housing overview

Metric	Value
Median home value	$225,300
Median rent / month	$873
Owner occupied	88.0%
Renter occupied	12.0%
Vacant	16.4%
Single-family detached	83.3%
Large apartment buildings	0.0%
Mobile homes	10.3%
Median rooms	6.0
Avg household size (owned)	2.58

Year built

Era	%
2020 or later	0.0%
2010–2019	7.8%
2000–2009	18.1%
1990–1999	9.4%
1980–1989	17.6%
1970–1979	9.1%
1960–1969	4.0%
1950–1959	2.3%
1940–1949	0.2%
1939 or earlier	31.6%

Bedrooms

Size	% of units
No bedroom (studio)	1.6%
1 bedroom	4.3%
2 bedrooms	30.8%
3 bedrooms	41.9%
4 bedrooms	16.8%
5+ bedrooms	4.6%

Vehicles per household

Vehicles	% of households
No vehicle	8.7%
1 vehicle	24.0%
2 vehicles	46.1%
3 or more	21.3%

Heating fuel

Fuel type	%
Utility gas	0.4%
Electricity	2.9%
Propane / LP gas	10.5%
Fuel oil	70.3%
Wood	14.3%
Solar	0.8%

Households & families

Household type	Count	%
Married-couple family	835	50.0%
Cohabiting couple	201	12.0%
Male householder, no spouse	169	10.1%
Female householder, no spouse	465	27.8%
Households with children under 18	481	28.8%
Households with seniors (65+)	703	42.1%
Average household size	2.46

Marital status

Status	Male	Female
Never married	18.6%	22.5%
Married	58.0%	48.0%
Separated	0.0%	1.8%
Widowed	2.5%	10.6%
Divorced	20.9%	17.1%

Education

Less than 9th grade 0.5%

Some HS, no diploma 2.8%

HS graduate 33.6%

Some college, no degree 18.5%

Associate's degree 12.1%

Bachelor's degree 24.5%

Graduate / professional 8.0%

Metric	%
HS diploma or higher	96.7%
Bachelor's or higher	32.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	24	2.9%
Kindergarten	46	5.5%
Elementary school	329	39.4%
High school	278	33.3%
College / grad school	159	19.0%

Employment

Industry of employment

Education & healthcare 22.9%

Professional & management 14.3%

Manufacturing 12.0%

Retail trade 10.4%

Finance & real estate 9.4%

Other services 8.1%

Construction 7.9%

Public administration 4.5%

Arts, food & hospitality 3.8%

Transportation & utilities 2.6%

Agriculture & mining 1.9%

Information 1.8%

Wholesale trade 0.4%

Occupation

Category	%
Management, business & arts	33.7%
Service	16.8%
Sales & office	22.4%
Natural resources & construction	11.8%
Production & transportation	15.4%

Employment type

Type	%
Private sector	73.6%
Government	13.1%
Self-employed	13.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	73.6%
Carpool	7.9%
Public transit	0.0%
Walk	2.0%
Work from home	16.4%
Other means	0.0%
Avg commute (minutes)	33.9

Poverty

All people 13.9%

Under 18 years 14.2%

18 and over 13.9%

Married-couple families 2.0%

Female-led households 45.2%

Income support

Source	% of households
Social Security	51.9%
Retirement income	22.0%
Supplemental Security	7.0%
Cash public assistance	5.5%
Food stamps / SNAP	17.1%

Health indicators

Condition	%
Obesity	31.4%
High blood pressure	32.8%
High cholesterol	35.7%
Diabetes	9.4%
Heart disease	6.8%
Stroke	3.0%
Asthma	10.3%
Arthritis	27.4%
Kidney disease	2.9%
Pulmonary disease	8.1%
Cancer	7.3%

Behavior / access	%
Smoking	17.2%
Binge drinking	16.0%
No physical activity	19.7%
Less than 7 hrs sleep	31.7%
Depression	22.6%
Fair or poor health	12.3%
Poor mental health	13.8%
Poor physical health	9.7%
No health insurance	12.6%
Visited doctor (checkup)	77.1%
Visited dentist	69.5%
Cholesterol screening	90.2%
Teeth loss	15.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	350	11.2%

Disability	%
Any disability	16.1%
Under 18	10.6%
18–64 years	13.3%
65 and over	27.5%

Health insurance coverage

Type	%
Private insurance	61.4%
Public insurance	50.0%
No insurance	7.8%
Uninsured under 19	7.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,772	91.3%
Spanish	8	0.2%
Other Indo-European	4	0.1%
Asian & Pacific Islander	0	0.0%
Other languages	4	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	4,054	98.2%
Born in same state	4,018	97.3%
Born in different state	2,556	61.9%
Foreign born	36	0.9%
Naturalized citizen	76	1.8%
Not a US citizen	50	65.8%

Ancestry

Ancestry	Count	%
French	717	17.4%
Italian	500	12.1%
Arab	392	9.5%
Polish	125	3%
German	82	2%

Ancestry	Count	%
English	16	0.4%
Dutch	13	0.3%
Irish	11	0.3%
Norwegian	6	0.1%

Technology access

Metric	% of households
Computer access	40.4%
Internet access	90.5%

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

Frequently asked questions about ZIP code 04862

What city is ZIP code 04862 in?

ZIP code 04862 is primarily assigned to Union, Maine.

What county is ZIP code 04862 in?

ZIP code 04862 falls within Knox County, Maine.

Does ZIP code 04862 have a large retiree population?

52% of households in ZIP code 04862 receive Social Security income, suggesting a significant retiree or disability population.

Is ZIP code 04862 mostly owner-occupied?

88% of occupied units in ZIP code 04862 are owner-occupied, well above the national average.

Does ZIP code 04862 have a large veteran population?

11% of civilians in ZIP code 04862 are veterans, above the national average of ~7%.

What is the population of ZIP code 04862?

ZIP code 04862 has an estimated population of 4,130 residents, with a density of 64 people per square mile.

What timezone is ZIP code 04862 in?

ZIP code 04862 observes the EST timezone.