Residential delivery area · Maine
ZIP Code 04101: Portland, ME
ZIP code 04101 is in Portland, Maine, entirely in Cumberland County (Census 2020 ZIP-county file). About 18,000 people live there (Census Bureau, ACS 2020-2024), the 2nd most populous of Portland's 4 residential ZIP codes. Median household income is $63,880 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
Where is ZIP code 04101?
04101 centers on 43.663°, -70.258° and covers 2.0 square miles of land plus 0.9 of water. It borders 3 ZIP codes: 04102, 04106, 04103.
The map draws ZIP code areas only. For the streets inside 04101, 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 04101 compare with the rest of Portland?
| Measure | 04101 | In Portland | In Cumberland County | In ME |
|---|---|---|---|---|
| People (ACS 2020-2024) | 18,431 | 2nd of 4 | 7th of 38 | 14th of 426 |
| Median household income | $64k | 3rd of 3 | 23rd of 24 | 133rd of 200 |
| Median home value | $618k | 1st of 3 | 5th of 27 | 7th of 242 |
Its median household income is higher than in 36% of U.S. residential ZIP codes, and it is denser than 97% 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 04101?
The 2020 Census counted 18,109 people in 04101; the ACS, which samples households over 2020-2024, estimates 18,431. Between the 2010 and 2020 censuses its population grew 5.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 18,431
- 2020 Census count
- 18,109+5.1% since 2010 (17,227)
- Households
- 10,608
- Median age
- 35.8
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 04101?
Of the 18,431 people the ACS estimates in 04101, 8.8% are under 18 and 16.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (71.9%), then Black (not Hispanic) (12.9%).
- Under 188.8%
- 18 to 6475.2%
- 65 and older16.0%
- White, not Hispanic71.9%
- Black, not Hispanic12.9%
- Other or two or more7.2%
- Hispanic or Latino4.8%
- Asian, not Hispanic3.3%
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 04101 earn?
Median household income is $63,880 (ACS 2020-2024), the 23rd highest of the 24 ranked ZIP codes in Cumberland County. It rose from $55,726 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $63,880
- Income per person
- $53,597
- Below the poverty line
- 17.5%
- Unemployed (of the labor force)
- 2.9%
- Adults 25+ with a bachelor's degree
- 58.1%
- Adjusted gross income per tax return, 2022
- $90,18410,120 returns; wages 63% 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 04101?
FHFA's house price index for 04101, built from repeat sales and appraisals of the same homes, rose 148% from 2015 to 2025 and rose 74% from 2020 to 2025, and moved +15.4% in 2025.
- Median home value (owners' estimate)
- $617,600
- Median gross rent
- $1,566
- Homes owned by their occupants
- 22.7%
- Housing units
- 11,818
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 04101?
2,071 business establishments had a location in this ZIP code in 2023, 59 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services409
- Accommodation and food services265
- Retail trade236
- Health care and social assistance217
- Real estate and rental and leasing174
- Finance and insurance162
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 04101?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 04102 | Portland | 17,267 | $83k | 2.1 mi |
| 04106 | South Portland | 27,019 | $86k | 2.6 mi |
| 04103 | Portland | 32,024 | $90k | 2.7 mi |
| 04109 | Portland | 213 | – | 1.8 mi (near) |
| 04108 | Peaks Island | 826 | $94k | 4.0 mi (near) |
| 04107 | Cape Elizabeth | 9,656 | $146k | 5.3 mi (near) |
| 04050 | Long Island | 249 | $91k | 5.5 mi (near) |
| 04105 | Falmouth | 12,755 | $151k | 5.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.