Postal Codes

04848 ZIP Code

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ZIP code 04848 covers Islesboro, Maine, with a population of about 686 and a median household income of $75,625.

Population
68648 per square mile
Median age
57.218.5 points above the US average
Median household income
$75,6251.1× the Maine median
Poverty rate
14.4%2 points above the US average
Typical home value
$444,681up 17.6% in five years
Median rent
$93813% below the Maine median
Degree or higher
45.7%10.7 points above the US average
Homeownership
89.8%24.8 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
41

Where 04848 is

Islesboro, Maine — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population686
Median age57.2
Family households54.9%
Born outside the US3.8%
Speaks a language other than English at home1.7%
White (non-Hispanic)97.5%
Black (non-Hispanic)0.1%
Asian (non-Hispanic)0%
Hispanic or Latino0.6%
Veterans3.2%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$75,625
Income per person$57,858
Poverty rate14.4%
Households on SNAP or cash assistance1.4%

Household income distribution

Under $10k1.6%
$10–15k18.4%
$15–20k1.6%
$20–25k1.6%
$25–30k2.7%
$30–35k0.0%
$35–40k4.1%
$40–45k3.3%
$45–50k1.6%
$50–60k7.7%
$60–75k6.6%
$75–100k7.1%
$100–125k11.5%
$125–150k15.1%
$150–200k8.0%
$200k or more8.8%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed310
Mean adjusted gross income$104,997
Returns declaring $200,000 or more6.5%
Returns, under $25k29.0%
Returns, $25k–$50k19.4%
Returns, $50k–$75k16.1%
Returns, $75k–$100k9.7%
Returns, $100k–$200k19.4%
Returns, $200k or more6.5%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$291,300
Median gross rent$938
Rent as a share of household income28.3%
Owner-occupied89.8%
Vacant homes51.3%
Median year built1977

What the homes are

Detached house97.7%
Attached house0.3%
Mobile home1.7%
Boat, RV or van0.3%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$444,681as of 2026-07
Typical home value, 1 yeardown 1.6%
Typical home value, 5 yearsup 17.6%
Typical home value, 10 yearsup 93%
Typical home value since 2000
200920172026$451,959$230,371

$251,100 in 2009 to $444,681 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate13.4%
Bachelor's degree or higher45.7%
High school diploma or higher97%
Works from home19.6%
Drives to work alone52%
Takes public transport0%
Commutes 45 minutes or more0%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity32.5% 0.9 pts below the national average of 33.4%
Diagnosed diabetes12.1% same as the national average of 12%
Currently smokes12.6% 0.6 pts below the national average of 13.2%
High blood pressure38.5% 4.4 pts above the national average of 34.1%
Fair or poor general health18% 2.3 pts below the national average of 20.3%
No health insurance (18–64)6.3% 5 pts below the national average of 11.3%
Depression26.2% 4.3 pts above the national average of 21.9%
No leisure-time physical activity21.1% 4.3 pts below the national average of 25.4%
Arthritis37.4% 12.3 pts above the national average of 25.1%
Binge drinking13% 3 pts below the national average of 16%
Taking blood pressure medication81.4% 6.7 pts above the national average of 74.7%
Cancer (non-skin)12.4% 4.7 pts above the national average of 7.7%
Current asthma12.8% 2.4 pts above the national average of 10.4%
Coronary heart disease8.6% 2.4 pts above the national average of 6.2%
Routine check-up in past year84.7% 8 pts above the national average of 76.7%
Cholesterol screening91.1% 5.2 pts above the national average of 85.9%
Cognitive disability12.8% 2 pts below the national average of 14.8%
Colorectal screening78.4% 14.1 pts above the national average of 64.3%
COPD8.5% 1.9 pts above the national average of 6.6%
Visited a dentist65.6% 4.3 pts above the national average of 61.3%
Any disability31.6% 0.9 pts above the national average of 30.7%
Lacks emotional support20.6% 4.2 pts below the national average of 24.8%
Food insecurity8% 9.1 pts below the national average of 17.1%
Received food stamps11% 3.3 pts below the national average of 14.3%
Hearing disability9.1% 2.4 pts above the national average of 6.7%
High cholesterol42.9% 6.7 pts above the national average of 36.2%
Housing insecurity7.5% 6.3 pts below the national average of 13.8%
Independent living disability7.4% 1 pts below the national average of 8.4%
Lacks transport5.9% 3.3 pts below the national average of 9.2%
Loneliness28.9% 5.5 pts below the national average of 34.4%
Mammography use83.2% 7.3 pts above the national average of 75.9%
Poor mental health (14+ days)15.3% 1.5 pts below the national average of 16.8%
Mobility disability14.7% 0.7 pts above the national average of 14%
Poor physical health (14+ days)14.6% 1.1 pts above the national average of 13.5%
Self-care disability3.4% 0.6 pts below the national average of 4%
Utility shut-off threat5.5% 3.3 pts below the national average of 8.8%
Sleeps under 7 hours31.3% 5.1 pts below the national average of 36.4%
Stroke3.9% 0.5 pts above the national average of 3.4%
All natural teeth lost10.2% 2.8 pts below the national average of 13%
Vision disability4% 1.6 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments41
People employed152
Annual payroll$6,346,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 43% of US census tracts
FEMA ratingRelatively Low
Expected annual loss48.3 out of 100
Community resilience74.6 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Winter weather98.4Very High at its worst in this ZIP code
Ice storm97.8Very High at its worst in this ZIP code
Coastal flooding96.6Relatively High at its worst in this ZIP code
Landslide89.8Relatively Low at its worst in this ZIP code
Lightning89.3Relatively High at its worst in this ZIP code
Hurricane87.6Relatively Moderate at its worst in this ZIP code
Drought85.7Relatively Low at its worst in this ZIP code
Wildfire66Very Low at its worst in this ZIP code
Cold wave63.7Relatively Moderate at its worst in this ZIP code
Hail53.9Relatively Low at its worst in this ZIP code
Strong wind50.1Relatively Low at its worst in this ZIP code
Earthquake36.7Very Low at its worst in this ZIP code
Tornado28.7Very Low at its worst in this ZIP code
River flooding19.3Relatively Low at its worst in this ZIP code
Avalanche6.3Very Low at its worst in this ZIP code
Heat wave3.8Very Low at its worst in this ZIP code
Compared with Maine and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPMaineUnited States
Median household income$75,625$71,773$78,538
Income per person$57,858$42,035$43,289
Poverty rate14.4%10.8%12.4%
Median home value$291,300$266,400$303,400
Median gross rent$938$1,084$1,348
Homeownership89.8%74%65%
Bachelor's degree or higher45.7%35.3%35%
Unemployment rate13.4%3.9%5.2%
Works from home19.6%14.1%13.5%
Born outside the US3.8%3.9%13.9%
Median age57.244.838.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationBELFAST, ME US11.6 km away
Rain in a year49 in
Snow in a year72 in

Average high and low by month

January29.5°F / 10.2°F3.94 in rain, 19.2 in snow
February32.2°F / 11.7°F3.16 in rain, 22.4 in snow
March39.7°F / 20.4°F4.12 in rain, 11.7 in snow
April51.5°F / 31.1°F4.38 in rain, 2.2 in snow
May62.9°F / 41.3°F3.86 in rain
June71.5°F / 50.5°F4.28 in rain
July77°F / 56.6°F3.17 in rain
August76.4°F / 55.5°F3.06 in rain
September69.5°F / 48.1°F4.09 in rain
October57.4°F / 37.9°F5.38 in rain, 0.3 in snow
November45.6°F / 28.8°F4.69 in rain, 2.5 in snow
December34.9°F / 18.4°F4.65 in rain, 13.2 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Islesboro100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability28more vulnerable than 28% of US census tracts
Socioeconomic status41more vulnerable than 41% of US census tracts
Household characteristics29more vulnerable than 29% of US census tracts
Racial and ethnic minority status8more vulnerable than 8% of US census tracts
Housing type and transport32more vulnerable than 32% of US census tracts
Walkability6.6 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

04642 Harborside, ME8.7 km away
04849 Lincolnville, ME13.9 km away
04420 Castine, ME14.5 km away
04421 Castine, ME15 km away
04617 Brooksville, ME15.9 km away
04850 Lincolnville Center, ME16 km away
04650 Little Deer Isle, ME16.2 km away
04915 Belfast, ME16.5 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Waldo County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area14.31 sq mi
Water area54.57 sq mi
Population density48 people per sq mi
Latitude, longitude44.3082, -68.9073

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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