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ZIP 04421 · Castine

Who lives in ZIP code 04421 (Castine, ME): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Castine, ME · Hancock County

uszips 2026
People1,362
Median age21.2
Household income$113,750
Home value$610,679
Median rent$1,105/mo
Poverty14.1%
College degree+74.5%
Commute14 min

Place

Metro area
Outside any metro
Time zone
Eastern
Density
68 / sq mi
Housing units
352

County

Hancock100%

Share of the ZIP's people in each county.

Age mix

Under 102.7%
10–1934.0%
20s20.8%
30s6.6%
40s1.8%
50s9.8%
60s7.3%
70s11.0%
80+5.8%

19.9% are 65 or older; 90.5% are adults.

Household income

Under $25K15.1%
$25K–50K6.8%
$50K–75K11.9%
$75K–100K12.2%
$100K–150K19.3%
$150K+34.7%

54.0% of households earn $100K+. Median per person: $12,141.

Education (adults 25+)

Less than high school0.2%
High school8.2%
Some college17.2%
Bachelor's31.1%
Graduate43.4%

41.3% of degrees are in STEM fields.

Race

White86.0%
Black3.7%
Asian0.0%
Native American0.0%
Pacific Islander0.0%
Other1.1%
Two or more9.2%

5.0% Hispanic or Latino (of any race).

Households & family

Married
33.4%
Never married
55.7%
Divorced
8.0%
Widowed
2.9%
Family size
2.58
Dual-income families
42.4%

Housing

Own their home
80.4%
Rent burden
—
Men / women
62% / 38%

Work

In labor force
52.1%
Unemployment
2.7%
Self-employed
—
Farmers
—

Community

Charitable givers
—
Veterans
5.5%
With a disability
12.9%
No health insurance
2.6%
Limited English
0.0%

Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.

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