Residential delivery area · Maine
ZIP Code 04530: Bath, ME
ZIP code 04530 uses the postal name Bath, Maine and lies entirely in Sagadahoc County (Census 2020 ZIP-county file). About 11,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $79,649 (Census Bureau, ACS 2020-2024). By Census place, 32% of its land lies in Bath; 68% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Bath · its only residential ZIP
- County
- Sagadahoc County
- Census places
- Bath
- Metro area
- Portland-South Portland, ME
- House district
- ME-1 119th Congress
- State
- Maine
- Time zone
- Eastern
- Land area
- 28.8 sq mi · 392 people per sq mi
Where is ZIP code 04530?
04530 centers on 43.888°, -69.827° and covers 28.8 square miles of land plus 10.2 of water. It borders 7 ZIP codes: 04548, 04579, 04011, 04562, 04086, 04079, 04008.
The map draws ZIP code areas only. For the streets inside 04530, 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 04530 compare with the rest of Sagadahoc County?
| Measure | 04530 | In Sagadahoc County | In ME |
|---|---|---|---|
| People (ACS 2020-2024) | 11,275 | 1st of 8 | 23rd of 426 |
| Median household income | $80k | 5th of 6 | 76th of 200 |
| Median home value | $337k | 3rd of 7 | 68th of 242 |
Its median household income is higher than in 62% of U.S. residential ZIP codes, and it is denser than 70% 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 04530?
The 2020 Census counted 11,153 people in 04530; the ACS, which samples households over 2020-2024, estimates 11,275. Between the 2010 and 2020 censuses its population grew 3.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 11,275
- 2020 Census count
- 11,153+3.1% since 2010 (10,818)
- Households
- 5,402
- Median age
- 47.0
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 04530?
Of the 11,275 people the ACS estimates in 04530, 15.7% are under 18 and 26.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (92.1%).
- Under 1815.7%
- 18 to 6458.0%
- 65 and older26.3%
- White, not Hispanic92.1%
- Other or two or more4.9%
- Asian, not Hispanic1.6%
- Hispanic or Latino0.9%
- Black, 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 04530 earn?
Median household income is $79,649 (ACS 2020-2024), the 5th highest of the 6 ranked ZIP codes in Sagadahoc County. It rose from $65,731 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $79,649±$9,731
- Income per person
- $48,229
- Below the poverty line
- 11.0%
- Unemployed (of the labor force)
- 5.4%
- Adults 25+ with a bachelor's degree
- 45.0%
- Adjusted gross income per tax return, 2022
- $73,7056,080 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 04530?
FHFA's house price index for 04530, built from repeat sales and appraisals of the same homes, rose 127% from 2015 to 2025 and rose 72% from 2020 to 2025, and moved +2.0% in 2025.
- Median home value (owners' estimate)
- $336,800
- Median gross rent
- $1,053
- Homes owned by their occupants
- 68.5%
- Housing units
- 6,139
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 04530?
356 business establishments had a location in this ZIP code in 2023, 12 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade55
- Construction52
- Health care and social assistance45
- Professional, scientific, and technical services41
- Other services (except public administration)35
- Accommodation and food services34
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 04530?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 04548 | Georgetown | 1,012 | $84k | 5.4 mi |
| 04579 | Woolwich | 3,158 | $102k | 5.7 mi |
| 04011 | Brunswick | 22,336 | $75k | 7.3 mi |
| 04562 | Phippsburg | 2,238 | $108k | 8.1 mi |
| 04086 | Topsham | 9,706 | $91k | 8.3 mi |
| 04079 | Harpswell | 4,026 | $92k | 10.2 mi |
| 04008 | Bowdoinham | 3,142 | $109k | 11.0 mi |
| 04571 | Trevett | 439 | $59k | 7.6 mi (near) |
| 04575 | West Boothbay Harbor | 286 | $116k | 8.6 mi (near) |
| 04578 | Wiscasset | 4,709 | $81k | 9.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.