Residential delivery area · Maine
ZIP Code 04021: Cumberland Center, ME
ZIP code 04021 uses the postal name Cumberland Center, Maine and lies entirely in Cumberland County (Census 2020 ZIP-county file). About 7,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $172,468 (Census Bureau, ACS 2020-2024). By Census place, 21% of its land lies in Cumberland Center (a census-designated place); 79% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Cumberland Center · its only residential ZIP
- County
- Cumberland County
- Census places
- Cumberland Center census-designated place
- Metro area
- Portland-South Portland, ME
- House district
- ME-1 119th Congress
- State
- Maine
- Time zone
- Eastern
- Land area
- 20.5 sq mi · 340 people per sq mi
Where is ZIP code 04021?
04021 centers on 43.792°, -70.265° and covers 20.5 square miles of land plus 0.0 of water. It borders 6 ZIP codes: 04105, 04097, 04096, 04110, 04062, 04039.
The map draws ZIP code areas only. For the streets inside 04021, 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 04021 compare with the rest of Cumberland County?
| Measure | 04021 | In Cumberland County | In ME |
|---|---|---|---|
| People (ACS 2020-2024) | 6,990 | 16th of 38 | 52nd of 426 |
| Median household income | $173k | 1st of 24 | 1st of 200 |
| Median home value | $579k | 7th of 27 | 12th of 242 |
Its median household income is higher than in 98% of U.S. residential ZIP codes, and it is denser than 68% 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 04021?
The 2020 Census counted 6,729 people in 04021; the ACS, which samples households over 2020-2024, estimates 6,990. Between the 2010 and 2020 censuses its population grew 15.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 6,990
- 2020 Census count
- 6,729+15.6% since 2010 (5,820)
- Households
- 2,425
- Median age
- 39.1
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 04021?
Of the 6,990 people the ACS estimates in 04021, 29.1% are under 18 and 13.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (93.8%).
- Under 1829.1%
- 18 to 6457.0%
- 65 and older13.9%
- White, not Hispanic93.8%
- Other or two or more3.7%
- Hispanic or Latino1.5%
- Black, not Hispanic0.6%
- Asian, not Hispanic0.4%
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 04021 earn?
Median household income is $172,468 (ACS 2020-2024), the highest of the 24 ranked ZIP codes in Cumberland County. It rose from $130,294 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $172,468±$21,006
- Income per person
- $78,752
- Below the poverty line
- 3.8%
- Unemployed (of the labor force)
- 0.3%
- Adults 25+ with a bachelor's degree
- 71.2%
- Adjusted gross income per tax return, 2022
- $156,0293,450 returns; wages 62% 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 04021?
FHFA's house price index for 04021, built from repeat sales and appraisals of the same homes, rose 122% from 2015 to 2025 and rose 75% from 2020 to 2025, and moved +9.4% in 2025.
- Median home value (owners' estimate)
- $579,000
- Median gross rent
- $2,579
- Homes owned by their occupants
- 94.6%
- Housing units
- 2,568
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 04021?
181 business establishments had a location in this ZIP code in 2023, 23 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services39
- Construction32
- Retail trade18
- Administrative and support and waste management and remediation services17
- Other services (except public administration)15
- Health care and social assistance14
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 04021?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 04105 | Falmouth | 12,755 | $151k | 3.6 mi |
| 04097 | North Yarmouth | 4,240 | $129k | 3.9 mi |
| 04096 | Yarmouth | 9,053 | $110k | 5.4 mi |
| 04110 | Cumberland Foreside | 1,657 | $194k | 5.4 mi |
| 04062 | Windham | 19,188 | $108k | 7.0 mi |
| 04039 | Gray | 8,102 | $95k | 9.3 mi |
| 04103 | Portland | 32,024 | $90k | 6.8 mi (near) |
| 04092 | Westbrook | 20,775 | $85k | 7.3 mi (near) |
| 04069 | Pownal | 1,696 | $104k | 8.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.