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ZIP 04259 · Monmouth

Who lives in ZIP code 04259 (Monmouth, ME): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Monmouth, ME · Kennebec County

uszips 2026
People3,610
Median age46.0
Household income$83,919
Home value$298,971
Median rent$1,249/mo
Poverty8.1%
College degree+34.6%
Commute29 min

Place

Metro area
Augusta-Waterville, ME (micro)
Time zone
Eastern
Density
48 / sq mi
Housing units
1,492

County

Kennebec100%

Share of the ZIP's people in each county.

Age mix

Under 1010.7%
10–199.7%
20s8.6%
30s10.7%
40s19.1%
50s17.3%
60s16.5%
70s4.6%
80+2.6%

17.2% are 65 or older; 80.3% are adults.

Household income

Under $25K15.2%
$25K–50K10.9%
$50K–75K19.4%
$75K–100K12.1%
$100K–150K32.5%
$150K+9.9%

42.4% of households earn $100K+. Median per person: $42,407.

Education (adults 25+)

Less than high school5.6%
High school35.5%
Some college24.2%
Bachelor's16.7%
Graduate17.9%

44.5% of degrees are in STEM fields.

Race

White95.2%
Black0.7%
Asian0.0%
Native American0.0%
Pacific Islander0.0%
Other0.0%
Two or more4.1%

1.8% Hispanic or Latino (of any race).

Households & family

Married
59.8%
Never married
22.4%
Divorced
12.9%
Widowed
5.0%
Family size
2.84
Dual-income families
55.8%

Housing

Own their home
78.0%
Rent burden
—
Men / women
54% / 46%

Work

In labor force
67.1%
Unemployment
0.2%
Self-employed
—
Farmers
—

Community

Charitable givers
—
Veterans
8.6%
With a disability
12.0%
No health insurance
6.2%
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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