Maine is home to 389 ZIP codes that span 16 counties and 376 cities and towns, ranging from 03901 in the south to 04989 in the central-eastern part of the state. The ZIP code prefixes used in Maine run from 039 to 049, covering everything from the bustling coastal communities of Portland and the southern shoreline to the remote forests and farmlands of northern Aroostook County. Penobscot County holds the most ZIP codes at 44, followed closely by Cumberland County with 41, reflecting the concentration of population and communities in central and southern Maine. Whether you're exploring the rugged Down East coastline or the vast northern wilderness, Maine's ZIP code system provides organized postal coverage across one of New England's most geographically diverse states.
Maine ZIP codes use prefixes ranging from 039 to 049, reflecting the state's position in the USPS numbering system for New England. The 039 prefix covers the southernmost tip of Maine near Kittery and the New Hampshire border, while higher prefixes like 047, 048, and 049 serve the vast northern and eastern reaches of the state, including Aroostook County and the Down East region. This progression generally follows a south-to-north and coastal-to-inland geographic pattern across the state.
Penobscot County leads Maine with 44 ZIP codes, reflecting its large geographic area spanning central Maine and its mix of urban centers like Bangor along with dozens of smaller rural towns and unorganized territories spread across nearly 3,400 square miles.
Quick facts
Maine's lowest ZIP code, 03901, belongs to Berwick in York County, making it one of the few New England states where ZIP codes begin with 039 — a prefix it shares only with a small portion of southern Maine near the New Hampshire border.
Aroostook County, Maine's largest county by area at over 6,600 square miles, has 36 ZIP codes spread across a territory larger than the states of Connecticut and Rhode Island combined.
Maine was one of the original states to receive ZIP codes when the system launched on July 1, 1963, and its relatively low prefix numbers (starting with 0) reflect its position in the first USPS sectional center zone assigned to the northeastern United States.
Frequently asked questions
What ZIP codes are in Portland, Maine?
Portland, Maine's largest city, is served by several ZIP codes including 04101, 04102, 04103, and 04104. ZIP code 04101 covers the downtown and Old Port districts, 04102 serves the western portions of the city including Deering, and 04103 covers the northern areas. The 04104 ZIP code is used primarily as a PO Box ZIP code.
How many ZIP codes does Maine have?
Maine has a total of 389 ZIP codes, spread across 16 counties and serving 376 cities and towns. These ZIP codes range from 03901 in the southern border town of Berwick to 04989 in the central-eastern part of the state, providing postal coverage for the entire Pine Tree State.
What do Maine ZIP codes start with?
Maine ZIP codes start with the prefixes 039, 040, 041, 042, 043, 044, 045, 046, 047, 048, and 049. All Maine ZIP codes begin with '0,' placing them within the broader New England postal zone. The 039 prefix covers the southernmost part of the state, while higher prefixes like 048 and 049 serve northern and eastern Maine.
Which county in Maine has the most ZIP codes?
Penobscot County has the most ZIP codes in Maine with 44, followed by Cumberland County with 41 and Aroostook County with 36. Penobscot's high count reflects its large geographic area and the presence of Bangor, Maine's third-largest city, along with numerous smaller communities. Cumberland County's count is driven by the greater Portland metropolitan area, while Aroostook's vast rural territory in northern Maine accounts for its many ZIP codes.
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389 ME ZIP codes with city, county,
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Last updated April 2026
Demographics & statistics
1,358,040
Population
44.7
Median age
$71,713
Median household income
$39,757
Per capita income
$226,568
Median home value
$827
Median monthly rent
81.9%
Home ownership
11.9%
Poverty rate
4.2%
Unemployment
581,056
Housing units
29.7%
Bachelor's or higher
Age distribution
MaleFemale
31,957
Under 5
31,047
34,869
5–9
33,877
36,644
10–14
35,602
39,197
15–19
38,082
38,338
20–24
37,247
83,099
25–34
80,734
81,176
35–44
78,866
88,420
45–54
85,905
52,515
55–59
51,021
54,811
60–64
53,252
88,407
65–74
85,892
42,259
75–84
41,057
17,127
85+
16,639
← Male
Female →
Age summary
Group
Count
%
Under 18
250,133
17.2%
18 and over
1,107,907
82.8%
65 and over
291,381
25.5%
Median age
44.7 years
Race & ethnicity
White90.3%
Two or more races3.8%
Hispanic or Latino2.2%
Black or African American1.6%
Asian1.1%
Other race0.6%
American Indian / Alaska Native0.5%
Group
Count
%
White
1,253,167
90.3%
Two or more races
53,371
3.8%
Hispanic or Latino
30,219
2.2%
Black or African American
21,586
1.6%
Asian
14,852
1.1%
Other race
8,094
0.6%
American Indian / Alaska Native
6,705
0.5%
Household income
Under $10k4.4%
$10k–$15k4.8%
$15k–$25k9.1%
$25k–$35k9.0%
$35k–$50k12.5%
$50k–$75k18.3%
$75k–$100k13.6%
$100k–$150k16.1%
$150k–$200k6.5%
$200k+5.8%
Range
% of households
Under $10k
4.4%
$10k–$15k
4.8%
$15k–$25k
9.1%
$25k–$35k
9.0%
$35k–$50k
12.5%
$50k–$75k
18.3%
$75k–$100k
13.6%
$100k–$150k
16.1%
$150k–$200k
6.5%
$200k+
5.8%
Median income
$71,713
Housing
Home values
Under $50k7.7%
$50k–$100k12.5%
$100k–$150k13.2%
$150k–$200k14.4%
$200k–$300k22.5%
$300k–$500k18.8%
$500k–$1M8.8%
$1M+2.1%
Housing overview
Metric
Value
Median home value
$226,568
Median rent / month
$827
Owner occupied
81.9%
Renter occupied
18.1%
Vacant
30.5%
Single-family detached
79.3%
Large apartment buildings
1.5%
Mobile homes
10.1%
Median rooms
5.5
Avg household size (owned)
2.35
Year built
Era
%
2020 or later
0.3%
2010–2019
5.7%
2000–2009
13.1%
1990–1999
12.8%
1980–1989
14.8%
1970–1979
14.5%
1960–1969
6.7%
1950–1959
5.9%
1940–1949
3.8%
1939 or earlier
22.2%
Bedrooms
Size
% of units
No bedroom (studio)
2.9%
1 bedroom
10.5%
2 bedrooms
29.5%
3 bedrooms
39.9%
4 bedrooms
13.3%
5+ bedrooms
3.9%
Vehicles per household
Vehicles
% of households
No vehicle
5.0%
1 vehicle
31.8%
2 vehicles
40.9%
3 or more
22.3%
Heating fuel
Fuel type
%
Utility gas
2.1%
Electricity
6.7%
Propane / LP gas
13.4%
Fuel oil
59.5%
Wood
15.7%
Solar
0.2%
No fuel used
0.2%
Households & families
Household type
Count
%
Married-couple family
276,397
51.1%
Cohabiting couple
52,589
8.8%
Male householder, no spouse
102,334
17.9%
Female householder, no spouse
146,215
22.2%
Households with children under 18
140,267
22.7%
Households with seniors (65+)
205,146
40.5%
Average household size
2.29
Marital status
Status
Male
Female
Never married
27.5%
21.5%
Married
54.9%
53.6%
Separated
1.0%
1.0%
Widowed
3.4%
10.1%
Divorced
13.2%
13.9%
Education
Less than 9th grade2.2%
Some HS, no diploma4.6%
HS graduate34.3%
Some college, no degree19.3%
Associate's degree10.0%
Bachelor's degree18.9%
Graduate / professional10.8%
Metric
%
HS diploma or higher
93.3%
Bachelor's or higher
29.7%
School enrollment (ages 3–17)
Type
Count
%
Nursery / preschool
14,613
5.7%
Kindergarten
12,689
4.9%
Elementary school
111,391
43.9%
High school
60,665
23.4%
College / grad school
73,591
20.8%
Employment
Industry of employment
Education & healthcare25.9%
Retail trade12.0%
Construction9.4%
Manufacturing9.0%
Professional & management8.4%
Arts, food & hospitality7.3%
Agriculture & mining5.6%
Transportation & utilities5.1%
Finance & real estate4.9%
Public administration4.8%
Other services4.6%
Wholesale trade1.7%
Information1.3%
Occupation
Category
%
Management, business & arts
35.9%
Service
16.2%
Sales & office
19.2%
Natural resources & construction
14.7%
Production & transportation
14.0%
Employment type
Type
%
Private sector
73.5%
Government
14.6%
Self-employed
11.6%
Unpaid family workers
0.3%
Commute
Method
%
Drive alone
74.8%
Carpool
9.2%
Public transit
0.4%
Walk
2.9%
Other means
1.4%
Avg commute (minutes)
26.3
Poverty
All people11.9%
Under 18 years14.6%
18 and over11.2%
Married-couple families4.0%
Female-led households22.4%
Income support
Source
% of households
Social Security
42.7%
Retirement income
27.4%
Supplemental Security
5.9%
Cash public assistance
2.7%
Food stamps / SNAP
11.5%
Health indicators
Condition
%
High blood pressure
35.6%
High cholesterol
34.6%
Heart disease
7.9%
Stroke
3.5%
Asthma
11.0%
Arthritis
29.4%
Kidney disease
3.3%
Pulmonary disease
9.3%
Cancer
7.7%
Behavior / access
%
Binge drinking
14.7%
No physical activity
23.2%
Less than 7 hrs sleep
32.0%
Fair or poor health
14.1%
Poor mental health
13.8%
Poor physical health
10.7%
No health insurance
12.5%
Visited doctor (checkup)
79.1%
Visited dentist
63.4%
Cholesterol screening
89.9%
Teeth loss
18.3%
Veterans & disability
Veterans
Count
%
Civilian veterans
100,194
10.3%
Disability
%
Any disability
17.3%
Under 18
6.3%
18–64 years
14.1%
65 and over
32.8%
Health insurance coverage
Type
%
Private insurance
64.9%
Public insurance
44.0%
Uninsured under 19
7.6%
Language & origin
Language spoken at home (age 5+)
Language
Count
%
English only
1,295,036
95.9%
Spanish
18,978
0.9%
Other Indo-European
2,527
0.2%
Asian & Pacific Islander
9,361
0.6%
Other languages
3,530
0.1%
Place of birth & citizenship
Origin
Count
%
Native born (US)
1,306,436
97.3%
Born in same state
1,290,640
96.2%
Born in different state
831,387
61.9%
Foreign born
15,796
1.1%
Naturalized citizen
51,604
2.7%
Not a US citizen
28,482
59.1%
Ancestry
Ancestry
Count
%
French
275,659
20.3%
Italian
217,769
16%
German
96,721
7.1%
Arab
82,722
6.1%
Polish
12,070
0.9%
Ancestry
Count
%
English
11,090
0.8%
Dutch
5,034
0.4%
Norwegian
4,572
0.3%
Irish
3,865
0.3%
Technology access
Metric
% of households
Computer access
43.7%
Internet access
91.2%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
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