Residential delivery area · Maine
ZIP Code 04108: Peaks Island, ME
ZIP code 04108 uses the postal name Peaks Island, Maine and lies entirely in Cumberland County (Census 2020 ZIP-county file). About 830 people live there (Census Bureau, ACS 2020-2024). Median household income is $94,318 (Census Bureau, ACS 2020-2024). Most of its land (100%) lies in the city of Portland.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Peaks Island · its only residential ZIP
- County
- Cumberland County
- Census places
- Portland
- Metro area
- Portland-South Portland, ME
- House district
- ME-1 119th Congress
- State
- Maine
- Time zone
- Eastern
- Land area
- 1.2 sq mi · 679 people per sq mi
Where is ZIP code 04108?
04108 centers on 43.637°, -70.187° and covers 1.2 square miles of land plus 5.3 of water.
The map draws ZIP code areas only. For the streets inside 04108, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 04108 compare with the rest of Cumberland County?
| Measure | 04108 | In Cumberland County | In ME |
|---|---|---|---|
| People (ACS 2020-2024) | 826 | 30th of 38 | 291st of 426 |
| Median household income | $94k | not ranked | not ranked |
| Median home value | $638k | not ranked | not ranked |
04108's income and home value are not ranked: it has fewer than 1,000 residents (826). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 75% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 04108?
The 2020 Census counted 907 people in 04108; the ACS, which samples households over 2020-2024, estimates 826. Between the 2010 and 2020 censuses its population grew 5.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 826±162 (90% margin)
- 2020 Census count
- 907+5.2% since 2010 (862)
- Households
- 406
- Median age
- 61.7
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 04108?
Of the 826 people the ACS estimates in 04108, 13.3% are under 18 and 35.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (93.6%).
- Under 1813.3%
- 18 to 6451.5%
- 65 and older35.2%
- White, not Hispanic93.6%
- Other or two or more4.2%
- Hispanic or Latino2.2%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 04108 earn?
Median household income is $94,318 (ACS 2020-2024). It is not measurably different from 2015-2019 ($100,519 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $94,318±$15,691
- Income per person
- $59,145
- Below the poverty line
- 7.6%
- Unemployed (of the labor force)
- 2.0%
- Adults 25+ with a bachelor's degree
- 71.3%
- Adjusted gross income per tax return, 2022
- $106,586570 returns; wages 52% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 04108?
FHFA's house price index for 04108, built from repeat sales and appraisals of the same homes, rose 132% from 2015 to 2025 and rose 66% from 2020 to 2025, and moved +4.6% in 2025.
- Median home value (owners' estimate)
- $637,500
- Median gross rent
- $1,500
- Homes owned by their occupants
- 88.7%
- Housing units
- 1,002
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 04108?
32 business establishments had a location in this ZIP code in 2023, the same count as in 2018; the most are in accommodation and food services (ZIP Code Business Patterns).
- Accommodation and food services6
- Real estate and rental and leasing5
- Construction4
- Retail trade4
- Health care and social assistance4
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 04108?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 04109 | Portland | 213 | – | 2.5 mi (near) |
| 04050 | Long Island | 249 | $91k | 3.9 mi (near) |
| 04101 | Portland | 18,431 | $64k | 4.0 mi (near) |
| 04107 | Cape Elizabeth | 9,656 | $146k | 4.2 mi (near) |
| 04106 | South Portland | 27,019 | $86k | 5.0 mi (near) |
| 04019 | Cliff Island | 93 | $90k | 5.3 mi (near) |
| 04102 | Portland | 17,267 | $83k | 5.7 mi (near) |
| 04103 | Portland | 32,024 | $90k | 6.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.