04856 ZIP Code — Rockport, ME

Knox County, Maine

ZIP code 04856 is located in Rockport, Maine, within Knox County. It covers approximately 21.64 square miles and serves a population of 3,636 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 207.

About ZIP code 04856

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 $366,600. Owner-occupancy is high at 77%, well above the national average.

Median household income is $86,188. 40% 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 13 minutes is near the national average.

Educational attainment is near the national average, with 43% of residents holding a bachelor's degree or higher.

Overall, ZIP code 04856 reflects a community defined by high homeownership and a significant Social Security-dependent population.

3,636

population

21.64

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

04856 ZIP code map

Cities in ZIP code 04856

Below are the cities the US Postal Service accepts for ZIP code 04856. Using any city not on this list may result in mail delivery delays.

City	Status
Rockport	Preferred

Nearby ZIP codes

04841 Rockland (3.4 mi) 04843 Camden (4 mi) 04861 Thomaston (6 mi) 04847 Hope (6.5 mi) 04864 Warren (6.6 mi) 04854 Owls Head (9.1 mi) 04858 South Thomaston (9.5 mi) 04862 Union (10 mi) 04849 Lincolnville (10.6 mi) 04859 Spruce Head (11.7 mi) 04859 Spruce Head (11.7 mi) 04853 North Haven (12.5 mi)

Demographics updated 05/2026

Population
Total population	3,636
Population density	168 / sq mi
State FIPS	23
County FIPS	013

Geography
Land area	21.64 sq mi
Water area	2.44 sq mi
Latitude	44.1734
Longitude	-69.1249
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	32.6%	42.0%	42.3%
$50k – $100k	32.9%	34.5%	32.3%
$100k – $200k	27.4%	19.0%	20.6%
Over $200k	7.2%	4.6%	4.9%

Demographics & statistics

3,636

Population

168

People per sq mi

45.5

Median age

$86,188

Median household income

$41,543

Per capita income

$366,600

Median home value

$1,093

Median monthly rent

76.8%

Home ownership

8.1%

Poverty rate

6.9%

Unemployment

1,555

Housing units

43.2%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

100

135

10–14

136

15–19

155

20–24

157

167

25–34

170

200

35–44

202

291

45–54

294

119

55–59

120

129

60–64

131

242

65–74

245

101

75–84

102

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	673	18.5%
18 and over	2,963	81.5%
65 and over	777	21.4%
Median age	45.5 years

Race & ethnicity

White 96.6%

Two or more races 2.3%

Asian 1%

Black or African American 0.2%

Group	Count	%
White	3,513	96.6%
Two or more races	82	2.3%
Asian	35	1%
Black or African American	6	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	32.6%	42.0%	42.3%
$50k – $100k	32.9%	34.5%	32.3%
$100k – $200k	27.4%	19.0%	20.6%
Over $200k	7.2%	4.6%	4.9%

Under $10k 1.5%

$10k–$15k 8.4%

$15k–$25k 4.0%

$25k–$35k 3.5%

$35k–$50k 7.1%

$50k–$75k 20.1%

$75k–$100k 18.4%

$100k–$150k 17.8%

$150k–$200k 8.5%

$200k+ 10.7%

Range	% of households
Under $10k	1.5%
$10k–$15k	8.4%
$15k–$25k	4.0%
$25k–$35k	3.5%
$35k–$50k	7.1%
$50k–$75k	20.1%
$75k–$100k	18.4%
$100k–$150k	17.8%
$150k–$200k	8.5%
$200k+	10.7%
Median income	$86,188

Housing

Home values

Under $50k 3.0%

$100k–$150k 3.7%

$150k–$200k 4.4%

$200k–$300k 26.9%

$300k–$500k 30.9%

$500k–$1M 31.1%

Housing overview

Metric	Value
Median home value	$366,600
Median rent / month	$1,093
Owner occupied	76.8%
Renter occupied	23.2%
Vacant	24.6%
Single-family detached	82.8%
Large apartment buildings	0.6%
Mobile homes	4.7%
Median rooms	6.5
Avg household size (owned)	2.67

Year built

Era	%
2020 or later	0.0%
2010–2019	6.9%
2000–2009	12.0%
1990–1999	10.8%
1980–1989	13.8%
1970–1979	16.2%
1960–1969	6.3%
1950–1959	0.8%
1940–1949	1.9%
1939 or earlier	31.1%

Bedrooms

Size	% of units
No bedroom (studio)	0.5%
1 bedroom	5.7%
2 bedrooms	29.7%
3 bedrooms	37.1%
4 bedrooms	15.2%
5+ bedrooms	11.9%

Vehicles per household

Vehicles	% of households
No vehicle	4.1%
1 vehicle	30.7%
2 vehicles	46.7%
3 or more	18.6%

Heating fuel

Fuel type	%
Electricity	11.8%
Propane / LP gas	32.3%
Fuel oil	49.7%
Wood	6.3%

Households & families

Household type	Count	%
Married-couple family	835	58.8%
Cohabiting couple	75	5.3%
Male householder, no spouse	118	8.3%
Female householder, no spouse	393	27.7%
Households with children under 18	382	26.9%
Households with seniors (65+)	542	38.1%
Average household size	2.50

Marital status

Status	Male	Female
Never married	31.6%	19.8%
Married	54.5%	55.1%
Separated	1.0%	0.6%
Widowed	1.2%	7.1%
Divorced	11.7%	17.3%

Education

Less than 9th grade 0.6%

Some HS, no diploma 6.4%

HS graduate 25.7%

Some college, no degree 13.3%

Associate's degree 10.7%

Bachelor's degree 21.8%

Graduate / professional 21.4%

Metric	%
HS diploma or higher	93.0%
Bachelor's or higher	43.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	56	8.1%
Kindergarten	69	9.9%
Elementary school	329	47.4%
High school	116	16.7%
College / grad school	124	17.9%

Employment

Industry of employment

Education & healthcare 27.5%

Retail trade 16.5%

Arts, food & hospitality 10.4%

Professional & management 8.7%

Manufacturing 8.5%

Public administration 8.0%

Construction 6.9%

Other services 6.1%

Finance & real estate 5.3%

Transportation & utilities 2.1%

Occupation

Category	%
Management, business & arts	37.8%
Service	20.9%
Sales & office	14.4%
Natural resources & construction	10.3%
Production & transportation	16.5%

Employment type

Type	%
Private sector	73.2%
Government	16.3%
Self-employed	9.8%
Unpaid family workers	0.7%

Commute

Method	%
Drive alone	65.6%
Carpool	15.7%
Public transit	0.0%
Walk	3.9%
Work from home	14.1%
Other means	0.7%
Avg commute (minutes)	13.3

Poverty

All people 8.1%

Under 18 years 8.6%

18 and over 8.0%

Married-couple families 0.0%

Female-led households 18.8%

Income support

Source	% of households
Social Security	40.2%
Retirement income	25.1%
Supplemental Security	2.2%
Cash public assistance	5.3%
Food stamps / SNAP	3.2%

Health indicators

Condition	%
Obesity	29.8%
High blood pressure	34.9%
High cholesterol	37.9%
Diabetes	10.0%
Heart disease	7.4%
Stroke	3.2%
Asthma	10.1%
Arthritis	29.7%
Kidney disease	3.2%
Pulmonary disease	8.0%
Cancer	8.7%

Behavior / access	%
Smoking	13.7%
Binge drinking	14.0%
No physical activity	18.3%
Less than 7 hrs sleep	29.3%
Depression	21.2%
Fair or poor health	11.9%
Poor mental health	12.3%
Poor physical health	9.4%
No health insurance	10.6%
Visited doctor (checkup)	79.5%
Visited dentist	72.8%
Cholesterol screening	92.6%
Teeth loss	13.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	282	9.5%

Disability	%
Any disability	11.5%
Under 18	1.6%
18–64 years	13.2%
65 and over	15.4%

Health insurance coverage

Type	%
Private insurance	66.5%
Public insurance	37.6%
No insurance	12.0%
Uninsured under 19	16.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,514	96.6%
Spanish	7	0.2%
Other Indo-European	0	0.0%
Asian & Pacific Islander	3	0.1%
Other languages	4	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,556	97.8%
Born in same state	3,428	94.3%
Born in different state	2,074	57.0%
Foreign born	128	3.5%
Naturalized citizen	80	2.2%
Not a US citizen	17	21.3%

Ancestry

Ancestry	Count	%
French	863	23.7%
Arab	361	9.9%
Italian	356	9.8%
English	32	0.9%
German	31	0.9%

Ancestry	Count	%
Polish	28	0.8%
Irish	19	0.5%
Dutch	10	0.3%
Norwegian	6	0.2%

Technology access

Metric	% of households
Computer access	39.1%
Internet access	96.8%

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

Frequently asked questions about ZIP code 04856

What city is ZIP code 04856 in?

ZIP code 04856 is primarily assigned to Rockport, Maine.

What county is ZIP code 04856 in?

ZIP code 04856 falls within Knox County, Maine.

Does ZIP code 04856 have a large retiree population?

40% of households in ZIP code 04856 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 04856?

The median home value in ZIP code 04856 is $366,600.

Does ZIP code 04856 have a large veteran population?

10% of civilians in ZIP code 04856 are veterans, above the national average of ~7%.

What is the population of ZIP code 04856?

ZIP code 04856 has an estimated population of 3,636 residents, with a density of 168 people per square mile.

What timezone is ZIP code 04856 in?

ZIP code 04856 observes the EST timezone.