Residential delivery area · Maine
ZIP Code 04330: Augusta, ME
ZIP code 04330 uses the postal name Augusta, Maine and lies entirely in Kennebec County (Census 2020 ZIP-county file). About 27,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $54,775 (Census Bureau, ACS 2020-2024). By Census place, 47% of its land lies in Augusta; 53% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
Where is ZIP code 04330?
04330 centers on 44.352°, -69.748° and covers 116.9 square miles of land plus 6.6 of water. It borders 11 ZIP codes: 04347, 04351, 04989, 04344, 04346, 04363, 04917, 04345, 04353, 04901 and more.
The map draws ZIP code areas only. For the streets inside 04330, 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 04330 compare with the rest of Kennebec County?
| Measure | 04330 | In Kennebec County | In ME |
|---|---|---|---|
| People (ACS 2020-2024) | 26,690 | 2nd of 27 | 6th of 426 |
| Median household income | $55k | 17th of 17 | 177th of 200 |
| Median home value | $217k | 18th of 22 | 162nd of 242 |
Its median household income is higher than in 21% of U.S. residential ZIP codes, and it is denser than 64% 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 04330?
The 2020 Census counted 26,322 people in 04330; the ACS, which samples households over 2020-2024, estimates 26,690. Between the 2010 and 2020 censuses its population grew 0.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 26,690
- 2020 Census count
- 26,322+0.9% since 2010 (26,086)
- Households
- 12,370
- Median age
- 42.6
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 04330?
Of the 26,690 people the ACS estimates in 04330, 20.1% are under 18 and 21.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (89.7%).
- Under 1820.1%
- 18 to 6458.8%
- 65 and older21.1%
- White, not Hispanic89.7%
- Other or two or more5.5%
- Hispanic or Latino1.9%
- Black, not Hispanic1.7%
- Asian, not Hispanic1.2%
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 04330 earn?
Median household income is $54,775 (ACS 2020-2024), the 17th highest of the 17 ranked ZIP codes in Kennebec County. It fell from $61,115 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $54,775
- Income per person
- $36,923
- Below the poverty line
- 15.0%
- Unemployed (of the labor force)
- 5.3%
- Adults 25+ with a bachelor's degree
- 28.8%
- Adjusted gross income per tax return, 2022
- $63,20913,170 returns; wages 72% 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 04330?
FHFA's house price index for 04330, built from repeat sales and appraisals of the same homes, rose 99% from 2015 to 2025 and rose 66% from 2020 to 2025, and moved +0.3% in 2025.
- Median home value (owners' estimate)
- $217,300
- Median gross rent
- $950
- Homes owned by their occupants
- 62.2%
- Housing units
- 13,342
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 04330?
1,031 business establishments had a location in this ZIP code in 2023, 43 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance199
- Retail trade171
- Other services (except public administration)135
- Accommodation and food services94
- Professional, scientific, and technical services78
- Construction70
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 04330?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 04347 | Hallowell | 2,592 | $68k | 5.7 mi |
| 04351 | Manchester | 2,424 | $92k | 5.7 mi |
| 04989 | Vassalboro | 4,592 | $72k | 7.3 mi |
| 04344 | Farmingdale | 3,017 | $72k | 7.5 mi |
| 04346 | Randolph | 1,610 | $67k | 7.9 mi |
| 04363 | Windsor | 2,690 | $63k | 9.1 mi |
| 04917 | Belgrade | 3,351 | $88k | 10.4 mi |
| 04345 | Gardiner | 12,579 | $77k | 11.1 mi |
| 04353 | Whitefield | 2,115 | $74k | 12.4 mi |
| 04901 | Waterville | 27,870 | $57k | 15.7 mi |
| 04963 | Oakland | 7,524 | $78k | 17.8 mi |
| 04355 | Readfield | 2,651 | $87k | 10.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.
Which other ZIP codes use the name Augusta?
4 more ZIP codes carry the postal name Augusta, ME without a residential delivery area: PO boxes at the post office, or a single organization with its own ZIP code. The Census Bureau publishes no figures for them.
| ZIP | County |
|---|---|
| 04332 | Kennebec County |
| 04333 | Kennebec County |
| 04336 | Kennebec County |
| 04338 | Kennebec County |
Source: GeoNames postal codes (CC BY 4.0), downloaded 2026-10-09; a ZIP code with no Census ZCTA has no residential delivery area.