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Maine ZIP Codes
Lincoln County
Southport, ME
04576
04576 ZIP Code — Southport, ME
Lincoln County, Maine
ZIP code 04576 is located in
Southport ,
Maine ,
within Lincoln County .
It covers approximately 5.11 square miles and serves a population of
467 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 207 .
About ZIP code 04576
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 $450,000. Owner-occupancy is high at 99%, well above the national average.
The gap between median ($68,542) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 7% is below the national average. 72% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with professional and management as the leading industry. The average commute of 21 minutes is near the national average.
Educational attainment is high — 65% of residents hold a bachelor's degree or higher, well above the national average of 33%.
Overall, ZIP code 04576 reflects a community defined by a highly educated population, high homeownership, and a significant Social Security-dependent population.
04576 ZIP code map
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Cities in ZIP code 04576
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Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
467
Population density
91 / sq mi
State FIPS
23
County FIPS
015
Geography
Land area
5.11 sq mi
Water area
4.69 sq mi
Latitude
43.8187
Longitude
-69.6679
Timezone
Eastern (ET)
Area code
207
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
39.3%
42.6%
42.3%
$50k – $100k
36.6%
35.0%
32.3%
$100k – $200k
16.6%
18.1%
20.6%
Over $200k
7.6%
4.3%
4.9%
Demographics & statistics
$68,542
Median household income
$450,000
Median home value
64.7%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 35 7.5% 18 and over 432 92.5% 65 and over 269 57.6% Median age 68.5 years
Race & ethnicity
Group Count % White 444 95.1% Two or more races 13 2.8% Asian 10 2.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
39.3%
42.6%
42.3%
$50k – $100k
36.6%
35.0%
32.3%
$100k – $200k
16.6%
18.1%
20.6%
Over $200k
7.6%
4.3%
4.9%
Range % of households Under $10k 3.1% $10k–$15k 5.4% $15k–$25k 2.7% $25k–$35k 7.8% $35k–$50k 16.3% $50k–$75k 16.3% $75k–$100k 15.2% $100k–$150k 15.2% $150k–$200k 6.2% $200k+ 11.7% Median income $68,542
Housing
Housing overview
Metric Value Median home value $450,000 Median rent / month $0 Owner occupied 98.8% Renter occupied 1.2% Vacant 68.8% Single-family detached 97.6% Large apartment buildings 0.0% Mobile homes 1.9% Median rooms 6.2 Avg household size (owned) 1.81
Year built
Era % 2020 or later 0.0% 2010–2019 1.0% 2000–2009 5.8% 1990–1999 7.8% 1980–1989 12.3% 1970–1979 10.6% 1960–1969 9.1% 1950–1959 5.2% 1940–1949 1.5% 1939 or earlier 46.8%
Bedrooms
Size % of units No bedroom (studio) 1.1% 1 bedroom 4.6% 2 bedrooms 20.7% 3 bedrooms 48.5% 4 bedrooms 18.2% 5+ bedrooms 6.9%
Vehicles per household
Vehicles % of households No vehicle 11.3% 1 vehicle 30.0% 2 vehicles 36.2% 3 or more 22.6%
Heating fuel
Fuel type % Electricity 7.8% Propane / LP gas 15.6% Fuel oil 69.6% Wood 7.0%
Households & families
Household type Count % Married-couple family 131 51.0% Cohabiting couple 13 5.1% Male householder, no spouse 35 13.6% Female householder, no spouse 78 30.4% Households with children under 18 15 5.8% Households with seniors (65+) 192 74.7% Average household size 1.82
Marital status
Status Male Female Never married 22.4% 8.1% Married 66.2% 58.7% Separated 0.0% 0.0% Widowed 6.7% 24.7% Divorced 4.8% 8.5%
Education
Some college, no degree
12.4%
Graduate / professional
26.6%
Metric % HS diploma or higher 99.3% Bachelor's or higher 64.7%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 0 0.0% Kindergarten 0 0.0% Elementary school 13 35.1% High school 24 64.9% College / grad school 0 0.0%
Employment
Industry of employment
Professional & management
16.1%
Arts, food & hospitality
15.0%
Education & healthcare
12.8%
Public administration
12.8%
Finance & real estate
5.0%
Agriculture & mining
4.4%
Transportation & utilities
4.4%
Occupation
Category % Management, business & arts 65.0% Service 17.2% Sales & office 10.6% Natural resources & construction 3.3% Production & transportation 3.9%
Employment type
Type % Private sector 56.1% Government 21.7% Self-employed 21.7% Unpaid family workers 0.6%
Commute
Method % Drive alone 69.7% Carpool 22.5% Public transit 0.0% Walk 0.0% Work from home 7.9% Other means 0.0% Avg commute (minutes) 20.5
Poverty
Married-couple families
3.8%
Female-led households
0.0%
Income support
Source % of households Social Security 72.0% Retirement income 44.7% Supplemental Security 0.8% Cash public assistance 0.4% Food stamps / SNAP 0.0%
Health indicators
Condition % Obesity 24.6% High blood pressure 43.6% High cholesterol 40.0% Diabetes 12.3% Heart disease 10.7% Stroke 4.4% Asthma 9.2% Arthritis 38.0% Kidney disease 4.3% Pulmonary disease 10.3% Cancer 11.4%
Behavior / access % Smoking 14.3% Binge drinking 10.4% No physical activity 20.7% Less than 7 hrs sleep 26.4% Depression 21.1% Fair or poor health 13.4% Poor mental health 10.6% Poor physical health 10.8% No health insurance 9.7% Visited doctor (checkup) 82.2% Visited dentist 72.2% Cholesterol screening 94.9% Teeth loss 14.5%
Veterans & disability
Veterans Count % Civilian veterans 43 10.0%
Disability % Any disability 13.1% Under 18 0.0% 18–64 years 6.7% 65 and over 18.6%
Health insurance coverage
Type % Private insurance 65.1% Public insurance 59.5% No insurance 5.4% Uninsured under 19 33.3%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 465 99.6% Spanish 0 0.0% Other Indo-European 0 0.0% Asian & Pacific Islander 0 0.0% Other languages 0 0.0%
Place of birth & citizenship
Origin Count % Native born (US) 451 96.6% Born in same state 445 95.3% Born in different state 151 32.3% Foreign born 6 1.3% Naturalized citizen 16 3.4% Not a US citizen 16 100.0%
Ancestry
Ancestry Count % French 211 45.2% Italian 60 12.8% German 7 1.5% Polish 6 1.3%
Ancestry Count % Norwegian 5 1.1% English 4 0.9% Dutch 4 0.9% Arab 2 0.4%
Technology access
Metric % of households Computer access 55.0% Internet access 79.4%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 04576
What city is ZIP code 04576 in?
ZIP code 04576 is primarily assigned to Southport, Maine.
What county is ZIP code 04576 in?
ZIP code 04576 falls within Lincoln County, Maine.
Does ZIP code 04576 have an older population?
58% of residents in ZIP code 04576 are 65 or older, above the national average of ~17%.
Does ZIP code 04576 have a large retiree population?
72% of households in ZIP code 04576 receive Social Security income, suggesting a significant retiree or disability population.
Is ZIP code 04576 mostly owner-occupied?
99% of occupied units in ZIP code 04576 are owner-occupied, well above the national average.
How educated is the population of ZIP code 04576?
65% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
What timezone is ZIP code 04576 in?
ZIP code 04576 observes the EST timezone.
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