Residential delivery area · Maine
ZIP Code 04576: Southport, ME
ZIP code 04576 uses the postal name Southport, Maine and lies entirely in Lincoln County (Census 2020 ZIP-county file). About 550 people live there (Census Bureau, ACS 2020-2024). Median household income is $89,375 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- FHFA2021
- ZBP2023
- IRS2022
- Town
- Southport · its only residential ZIP
- County
- Lincoln County
- House district
- ME-1 119th Congress
- State
- Maine
- Time zone
- Eastern
- Land area
- 5.1 sq mi · 107 people per sq mi
Where is ZIP code 04576?
04576 centers on 43.813°, -69.663° and covers 5.1 square miles of land plus 4.7 of water. It borders 1 ZIP code: 04575.
The map draws ZIP code areas only. For the streets inside 04576, 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 04576 compare with the rest of Lincoln County?
| Measure | 04576 | In Lincoln County | In ME |
|---|---|---|---|
| People (ACS 2020-2024) | 547 | 17th of 27 | 323rd of 426 |
| Median household income | $89k | not ranked | not ranked |
| Median home value | $490k | not ranked | not ranked |
04576's income and home value are not ranked: it has fewer than 1,000 residents (547). 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 55% 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 04576?
The 2020 Census counted 606 people in 04576; the ACS, which samples households over 2020-2024, estimates 547. Between the 2010 and 2020 censuses its population grew 0.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 547±133 (90% margin)
- 2020 Census count
- 606+0.3% since 2010 (604)
- Households
- 299
- Median age
- 66.6
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 04576?
Of the 547 people the ACS estimates in 04576, 10.4% are under 18 and 52.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (96.0%).
- Under 1810.4%
- 18 to 6437.5%
- 65 and older52.1%
- White, not Hispanic96.0%
- Asian, not Hispanic2.4%
- Hispanic or Latino1.6%
- Black, not Hispanic0.0%
- Other or two or more0.0%
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 04576 earn?
Median household income is $89,375 (ACS 2020-2024). It is not measurably different from 2015-2019 ($67,249 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $89,375±$17,576
- Income per person
- $62,890
- Below the poverty line
- 5.5%
- Unemployed (of the labor force)
- 6.7%
- Adults 25+ with a bachelor's degree
- 58.5%
- Adjusted gross income per tax return, 2022
- $94,881370 returns; wages 33% 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 04576?
- Median home value (owners' estimate)
- $489,600
- Median gross rent
- $1,094
- Homes owned by their occupants
- 89.3%
- Housing units
- 913
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 04576?
26 business establishments had a location in this ZIP code in 2023, 3 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction5
- Accommodation and food services5
- Professional, scientific, and technical services3
- Other services (except public administration)3
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 04576?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 04575 | West Boothbay Harbor | 286 | $116k | 2.7 mi |
| 04570 | Squirrel Island | 3 | – | 1.6 mi (near) |
| 04538 | Boothbay Harbor | 1,810 | $57k | 2.9 mi (near) |
| 04544 | East Boothbay | 978 | $59k | 3.6 mi (near) |
| 04548 | Georgetown | 1,012 | $84k | 4.5 mi (near) |
| 04571 | Trevett | 439 | $59k | 5.8 mi (near) |
| 04537 | Boothbay | 1,685 | $77k | 6.4 mi (near) |
| 04568 | South Bristol | 512 | $55k | 7.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.