Zip code 04421: Castine, Maine

Q: What city is zip code 04421?

04421 is assigned to Castine, Maine. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 04421 in?

04421 is in Hancock County, Maine.

Q: What is the population of 04421?

About 1,362 people live in 04421, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 04421?

The median household income in 04421 is $113,750.

Q: What zip codes are near 04421?

The closest zip codes to 04421 are 04420, 04617, 04642, 04974, 04972.

Residential delivery areaHancock CountyEastern Time

Population

1,362

Median household income

$114K

U.S. $81K

Median home value

$604K

U.S. $333K

Median rent

$1,105/mo

U.S. $1,413

Median age

21.2

U.S. 38.9

Land area

7.8 sq mi

175 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 04421

04421 is a small-town zip code in Castine, Maine (Hancock County), covering 7.8 sq mi of land. About 1,362 people live here, or 175 per square mile. The median resident is 21.2 years old, compared with 38.9 nationally.

The median household earns $113,750 a year, 41% above the national median of $80,734. 14.1% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $603,500, or 5.3 years of median household income (U.S.: 4.1 years), which makes homes relatively expensive for local earners. 80% of occupied homes are lived in by their owners, and renters pay a median of $1,105 a month.

75% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 14.2 minutes each way, and 12% of workers work from home. The most common jobs among working residents are in education; management; and office and administrative support.

How 04421 compares

Sorted from highest to lowest national percentile

Housing vacancy51.1%
99th
U.S. 10.1% · ME 20.6%60th of 399 in ME
Bachelor's degree or higher74.5%
97th
StrengthU.S. 35.7% · ME 36.2%6th of 400 in ME
Broadband access96.3%
87th
StrengthU.S. 91% · ME 90.3%45th of 399 in ME
Rent-burdened renters60.3%
84th
WeaknessU.S. 51.1% · ME 48.4%78th of 374 in ME
Median home value$603,500
82nd
U.S. $332,700 · ME $296,60017th of 396 in ME
Median household income$113,750
81st
StrengthU.S. $80,734 · ME $74,73317th of 390 in ME
Homeownership rate80.4%
79th
U.S. 65.2% · ME 74.3%278th of 399 in ME
Residents 65 and older19.9%
73rd
U.S. 17.2% · ME 22.4%295th of 400 in ME
Poverty rate14.1%
66th
U.S. 12.5% · ME 10.7%122nd of 399 in ME
Per capita income$39,304
48th
U.S. $44,673 · ME $43,742187th of 400 in ME
Work from home11.7%
45th
U.S. 15.1% · ME 15.9%226th of 399 in ME
Veterans5.5%
45th
U.S. 6.2% · ME 8.4%340th of 400 in ME
Government workers12.6%
41st
U.S. 14.5% · ME 14.1%234th of 399 in ME
Income inequality (Gini)0.424
40th
U.S. 0.483 · ME 0.456192nd of 399 in ME
Foreign-born residents6.1%
34th
U.S. 14.1% · ME 4.1%37th of 400 in ME
Median gross rent$1,105
29th
U.S. $1,413 · ME $1,139118th of 318 in ME
Diversity index27.8
21st
U.S. 61.4 · ME 18.927th of 400 in ME
Population density175/sq mi
19th
U.S. 95/sq mi · ME 45/sq mi78th of 400 in ME
Unemployment rate2.7%
12th
StrengthU.S. 5.2% · ME 3.8%230th of 400 in ME
Self-employed workers6.2%
11th
U.S. 10% · ME 13%368th of 399 in ME
Uninsured rate2.6%
9th
StrengthU.S. 8.4% · ME 6.2%352nd of 400 in ME
Healthcare workers4.7%
3rd
U.S. 9.7% · ME 10.8%337th of 399 in ME
Population1,362
2nd
U.S. 334,922,499 · ME 1,387,817228th of 400 in ME
Residents under 189.5%
2nd
U.S. 22% · ME 18.1%355th of 400 in ME
Median age21.2
1st
U.S. 38.9 · ME 44.8397th of 400 in ME
Average commute14.2 min
1st
StrengthU.S. 26.4 min · ME 24.6 min363rd of 384 in ME
Median earnings per worker$10,154
1st
WeaknessU.S. $49,666 · ME $48,053397th of 399 in ME
Tech workers0%
1st
U.S. 3.8% · ME 2.7%321st of 399 in ME

Measure	04421	Hancock	ME	U.S.	National percentile	Rank in ME
Housing vacancy	51.1%	37.3%	20.6%	10.1%	99th	60th of 399
Bachelor's degree or higherStrength	74.5%	40.1%	36.2%	35.7%	97th	6th of 400
Broadband accessStrength	96.3%	91.2%	90.3%	91%	87th	45th of 399
Rent-burdened rentersWeakness	60.3%	50.9%	48.4%	51.1%	84th	78th of 374
Median home value	$603,500	$310,400	$296,600	$332,700	82nd	17th of 396
Median household incomeStrength	$113,750	$72,744	$74,733	$80,734	81st	17th of 390
Homeownership rate	80.4%	78.5%	74.3%	65.2%	79th	278th of 399
Residents 65 and older	19.9%	26.6%	22.4%	17.2%	73rd	295th of 400
Poverty rate	14.1%	9.9%	10.7%	12.5%	66th	122nd of 399
Per capita income	$39,304	$44,241	$43,742	$44,673	48th	187th of 400
Work from home	11.7%	13.7%	15.9%	15.1%	45th	226th of 399
Veterans	5.5%	8%	8.4%	6.2%	45th	340th of 400
Government workers	12.6%	13.8%	14.1%	14.5%	41st	234th of 399
Income inequality (Gini)	0.424	0.458	0.456	0.483	40th	192nd of 399
Foreign-born residents	6.1%	3.3%	4.1%	14.1%	34th	37th of 400
Median gross rent	$1,105	$1,061	$1,139	$1,413	29th	118th of 318
Diversity index	27.8	14.1	18.9	61.4	21st	27th of 400
Population density	175/sq mi	36/sq mi	45/sq mi	95/sq mi	19th	78th of 400
Unemployment rateStrength	2.7%	4.6%	3.8%	5.2%	12th	230th of 400
Self-employed workers	6.2%	19.8%	13%	10%	11th	368th of 399
Uninsured rateStrength	2.6%	9.6%	6.2%	8.4%	9th	352nd of 400
Healthcare workers	4.7%	8.5%	10.8%	9.7%	3rd	337th of 399
Population	1,362	56,460	1,387,817	334,922,499	2nd	228th of 400
Residents under 18	9.5%	16.2%	18.1%	22%	2nd	355th of 400
Median age	21.2	49	44.8	38.9	1st	397th of 400
Average commuteStrength	14.2 min	25.4 min	24.6 min	26.4 min	1st	363rd of 384
Median earnings per workerWeakness	$10,154	$45,094	$48,053	$49,666	1st	397th of 399
Tech workers	0%	1.3%	2.7%	3.8%	1st	321st of 399

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

5–17

47%

18–24

25–34

35–44

45–54

55–64

10%

65–74

10%

75+

Median age

21.2

Under 18

9.5%

65 and over

19.9%

Race and ethnicity

White84%
Black4%
Hispanic5%
Asian0%
Native American0%
Pacific Islander0%
Other0%
Multiracial7%

Diversity index

27.8

U.S. 61.4

Foreign-born

6.1%

U.S. 14.1%

Born in state

36.9%

Language spoken at home (households)

English only

93%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 352
Average household size: 2.2
Family households: 69.6%
Married couples: 58%
Living alone: 22.7%
Veterans (of adults): 5.5%
Male / female: 62% / 38%

Income and poverty

Household income distribution

<$25k

15%

$25–50k

$50–75k

12%

$75–100k

12%

$100–150k

19%

$150–200k

14%

$200k+

20%

Median household income

04421

$113,750

Hancock Co.

$72,744

Maine

$74,733

United States

$80,734

Per capita income

$39,304

U.S. $44,673

Poverty rate

14.1%

U.S. 12.5%

Households earning $150K+

34.7%

U.S. 23%

Income inequality (Gini)

0.424

U.S. 0.483

Housing

Median home value

04421

$603,500

Hancock Co.

$310,400

Maine

$296,600

United States

$332,700

Median gross rent

04421

$1,105

Hancock Co.

$1,061

Maine

$1,139

United States

$1,413

Types of housing

Single-family

88%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

Housing units: 720
Owner-occupied: 80.4%
Vacant: 51.1%
Median year built: 1974
Median rooms: 6.2
Renters paying 30%+ of income: 60.3%
Renters paying 50%+ of income: 60.3%
Home value to income: 5.3× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

46%

Carpooled

Transit

Walked

32%

Bicycle

Worked from home

12%

Other

Commute time (one way)

<10 min

45%

10–19

22%

20–29

19%

30–44

11%

45–59

60+

Average commute

14.2 min

U.S. 26.4 min

Unemployment

2.7%

U.S. 5.2%

In labor force

52.1%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Education

18%

Management

11%

Office and admin

10%

Production

10%

Sales

Transportation and moving

Police and fire

Arts, media and sports

Healthcare

Food service

Cleaning and personal care

Legal and social services

Construction and repair

Engineering and science

Business and finance

Computer and math

Farming, fishing and forestry

Industries

Education

40%

Restaurants and hotels

11%

Manufacturing

10%

Retail

10%

Health care and social assistance

Transportation, warehousing and utilities

Finance, insurance and real estate

Arts and recreation

Construction

Professional and technical services

Other services

0.9%

Wholesale

0.5%

Admin, support and management

0.2%

Public administration

Information

Agriculture and mining

Median earnings per worker

$10,154

U.S. $49,666

Self-employed

6.2%

U.S. 10%

Government workers

12.6%

U.S. 14.5%

Nonprofit workers

24.5%

U.S. 8.8%

Median earnings by type of work

Type of work	04421	U.S.
Management, business, science and arts	$46,607	$74,888
Service	$7,727	$26,804
Sales and office	$10,093	$40,476
Construction and maintenance	$11,818	$49,199
Production and transportation	$9,609	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

0.2%

High school

Some college

14%

Associate's

Bachelor's

31%

Graduate

43%

High school graduate or higher: 99.8%
Bachelor's degree or higher: 74.5%
Graduate or professional degree: 43.4%
Households with broadband: 96.3%
Cable, fiber or DSL: 88.4%
No internet access: 0.6%
Without health insurance: 2.6%
Limited-English households: 0%

Geography

City (USPS): Castine
State: Maine
County: Hancock County
Center point: 44.4090° N, 68.8155° W
Land area: 7.8 sq mi
Water area: 12 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Castine (unincorporated)20% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 04421

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
04420	Castine, ME · PO box	0.9 mi	—	—	—
04617	Brooksville, ME	5.3 mi	651	$52,078	$392,900
04642	Harborside, ME	5.4 mi	202	$71,563	$384,600
04974	Searsport, ME	7 mi	2,655	$64,303	$224,400
04972	Sandy Point, ME · PO box	7.3 mi	—	—	—
04981	Stockton Springs, ME	7.3 mi	2,575	$77,560	$239,000
04476	Penobscot, ME	7.4 mi	1,154	$63,194	$296,400
04848	Islesboro, ME	9.1 mi	636	$88,438	$288,800
04650	Little Deer Isle, ME	9.2 mi	333	$110,063	$332,400
04676	Sedgwick, ME	9.9 mi	1,130	$73,333	$336,500
04673	Sargentville, ME	11 mi	144	$53,750	$335,200
04915	Belfast, ME	12 mi	9,107	$66,362	$308,700

Zip codes like 04421 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 04421

What city is zip code 04421?

04421 is assigned to Castine, Maine. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 04421 in?

04421 is in Hancock County, Maine.

What is the population of 04421?

About 1,362 people live in 04421, according to the Census Bureau's American Community Survey.

What time zone is 04421 in?

04421 is in Eastern Time.

What is the median household income in 04421?

The median household income in 04421 is $113,750.

What zip codes are near 04421?

The closest zip codes to 04421 are 04420, 04617, 04642, 04974, 04972.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 04421, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.