Residential delivery area · Maine
ZIP Code 04055: Naples, ME
ZIP code 04055 uses the postal name Naples, Maine and lies entirely in Cumberland County (Census 2020 ZIP-county file). About 4,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $78,188 (Census Bureau, ACS 2020-2024). By Census place, 8% of its land lies in Naples (a census-designated place); 92% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Naples · its only residential ZIP
- County
- Cumberland County
- Census places
- Naples census-designated place
- Metro area
- Portland-South Portland, ME
- House district
- ME-1 119th Congress
- State
- Maine
- Time zone
- Eastern
- Land area
- 31.8 sq mi · 125 people per sq mi
Where is ZIP code 04055?
04055 centers on 43.976°, -70.639° and covers 31.8 square miles of land plus 5.4 of water. It borders 5 ZIP codes: 04029, 04015, 04009, 04270, 04040.
The map draws ZIP code areas only. For the streets inside 04055, 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 04055 compare with the rest of Cumberland County?
| Measure | 04055 | In Cumberland County | In ME |
|---|---|---|---|
| People (ACS 2020-2024) | 3,985 | 22nd of 38 | 95th of 426 |
| Median household income | $78k | 20th of 24 | 79th of 200 |
| Median home value | $340k | 24th of 27 | 66th of 242 |
Its median household income is higher than in 59% of U.S. residential ZIP codes, and it is denser than 57% of all 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 04055?
The 2020 Census counted 3,925 people in 04055; the ACS, which samples households over 2020-2024, estimates 3,985. Between the 2010 and 2020 censuses its population grew 3.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 3,985
- 2020 Census count
- 3,925+3.5% since 2010 (3,793)
- Households
- 2,021
- Median age
- 49.8
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 04055?
Of the 3,985 people the ACS estimates in 04055, 15.6% are under 18 and 23.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (90.1%).
- Under 1815.6%
- 18 to 6461.1%
- 65 and older23.3%
- White, not Hispanic90.1%
- Other or two or more7.1%
- Hispanic or Latino2.8%
- 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 04055 earn?
Median household income is $78,188 (ACS 2020-2024), the 20th highest of the 24 ranked ZIP codes in Cumberland County. It is not measurably different from 2015-2019 ($82,994 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $78,188±$12,717
- Income per person
- $48,361
- Below the poverty line
- 9.5%
- Unemployed (of the labor force)
- 0.9%
- Adults 25+ with a bachelor's degree
- 37.9%
- Adjusted gross income per tax return, 2022
- $76,2942,160 returns; wages 70% 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 04055?
FHFA's house price index for 04055, built from repeat sales and appraisals of the same homes, rose 102% from 2015 to 2025 and rose 63% from 2020 to 2025, and moved +4.8% in 2025.
- Median home value (owners' estimate)
- $340,100
- Median gross rent
- $1,941
- Homes owned by their occupants
- 87.5%
- Housing units
- 3,360
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 04055?
142 business establishments had a location in this ZIP code in 2023, 10 more than in 2018; the most are in accommodation and food services (ZIP Code Business Patterns).
- Accommodation and food services28
- Construction22
- Administrative and support and waste management and remediation services18
- Retail trade14
- Real estate and rental and leasing10
- Other services (except public administration)10
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 04055?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 04029 | Sebago | 2,086 | $78k | 6.1 mi |
| 04015 | Casco | 3,696 | $69k | 6.5 mi |
| 04009 | Bridgton | 5,478 | $78k | 7.2 mi |
| 04270 | Oxford | 6,284 | $74k | 11.2 mi |
| 04040 | Harrison | 3,050 | $57k | 14.8 mi |
| 04022 | Denmark | 1,054 | $64k | 8.8 mi (near) |
| 04057 | North Bridgton | 164 | – | 8.8 mi (near) |
| 04071 | Raymond | 4,971 | $89k | 9.2 mi (near) |
| 04024 | East Baldwin | 356 | $53k | 9.9 mi (near) |
| 04091 | West Baldwin | 801 | $79k | 10.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.