Residential delivery area · Maine
ZIP Code 04103: Portland, ME
ZIP code 04103 is in Portland, Maine, entirely in Cumberland County (Census 2020 ZIP-county file). About 32,000 people live there (Census Bureau, ACS 2020-2024), the most populous of Portland's 4 residential ZIP codes. Median household income is $89,796 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
Where is ZIP code 04103?
04103 centers on 43.695°, -70.289° and covers 10.2 square miles of land plus 0.8 of water. It borders 4 ZIP codes: 04101, 04102, 04105, 04092.
The map draws ZIP code areas only. For the streets inside 04103, 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 04103 compare with the rest of Portland?
| Measure | 04103 | In Portland | In Cumberland County | In ME |
|---|---|---|---|---|
| People (ACS 2020-2024) | 32,024 | 1st of 4 | 1st of 38 | 3rd of 426 |
| Median household income | $90k | 1st of 3 | 15th of 24 | 44th of 200 |
| Median home value | $460k | 3rd of 3 | 13th of 27 | 25th of 242 |
Its median household income is higher than in 73% of U.S. residential ZIP codes, and it is denser than 89% 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 04103?
The 2020 Census counted 31,185 people in 04103; the ACS, which samples households over 2020-2024, estimates 32,024. Between the 2010 and 2020 censuses its population grew 1.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 32,024
- 2020 Census count
- 31,185+1.9% since 2010 (30,606)
- Households
- 13,657
- Median age
- 38.1
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 04103?
Of the 32,024 people the ACS estimates in 04103, 19.2% are under 18 and 17.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (79.6%).
- Under 1819.2%
- 18 to 6463.0%
- 65 and older17.8%
- White, not Hispanic79.6%
- Black, not Hispanic8.9%
- Other or two or more5.1%
- Asian, not Hispanic4.2%
- Hispanic or Latino2.1%
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 04103 earn?
Median household income is $89,796 (ACS 2020-2024), the 15th highest of the 24 ranked ZIP codes in Cumberland County. It is not measurably different from 2015-2019 ($85,461 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $89,796
- Income per person
- $52,395
- Below the poverty line
- 9.2%
- Unemployed (of the labor force)
- 5.4%
- Adults 25+ with a bachelor's degree
- 59.0%
- Adjusted gross income per tax return, 2022
- $88,49216,460 returns; wages 68% 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 04103?
FHFA's house price index for 04103, built from repeat sales and appraisals of the same homes, rose 129% from 2015 to 2025 and rose 71% from 2020 to 2025, and moved +1.0% in 2025.
- Median home value (owners' estimate)
- $459,500
- Median gross rent
- $1,620
- Homes owned by their occupants
- 61.5%
- Housing units
- 14,516
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 04103?
1,106 business establishments had a location in this ZIP code in 2023, 51 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance173
- Other services (except public administration)146
- Construction132
- Professional, scientific, and technical services103
- Retail trade83
- Accommodation and food services72
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 04103?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 04101 | Portland | 18,431 | $64k | 2.7 mi |
| 04102 | Portland | 17,267 | $83k | 2.9 mi |
| 04105 | Falmouth | 12,755 | $151k | 3.2 mi |
| 04092 | Westbrook | 20,775 | $85k | 3.3 mi |
| 04109 | Portland | 213 | – | 4.0 mi (near) |
| 04106 | South Portland | 27,019 | $86k | 4.4 mi (near) |
| 04110 | Cumberland Foreside | 1,657 | $194k | 6.2 mi (near) |
| 04108 | Peaks Island | 826 | $94k | 6.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.