Kennebec County, ME ZIP Codes
27 ZIP codes cover all or part of Kennebec County, Maine. The Census Bureau counts 126,808 residents in the county, with a median household income of $69,077 and a median home value of $238,200. Median household income ranges from $54,775 in 04330 to $96,309 in 04358. Its largest communities include Augusta, Waterville, Gardiner, Winslow and Winthrop.
Kennebec County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 126,808 |
| Households | 54,312 |
| Median household income | $69,077 |
| Median home value | $238,200 |
| Median age | 43.7 |
| Median rent | $992 |
All 27 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 128,666 |
| Households (sum of ZIP codes) | 54,886 |
| Median household income, range across ZIP codes | $54,775 (04330) to $96,309 (04358) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $68,566 |
| Homeowners | 73.7% |
| Households with kids under 18 | 25.1% |
| Moved in the past year | 12.2% |
| Carrier routes in EDDM2GO's route library | 110 routes, 51,785 homes (23 of 27 ZIP codes) |
Top facts
- Highest median household income in Kennebec County: 04358 ($96,309)
- Most residents: 04901 (27,870 people)
- Highest homeownership: 04350 (96.7% own their home)
- Most households with kids: 04963 (34.3% of households)
- Most new movers: 04988 (25.4% moved in last year)
- Youngest median age: 04988 (27.8 years)
- Highest median home value: 04284 ($362,800)
Every ZIP code in Kennebec County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 04901 | Waterville | 27,870 | 11,451 | $57,403 | $204,700 | 60.7% | 22.2% | 18.4% | 23 | 12,492 | 100% of its land |
| 04330 | Augusta | 26,690 | 12,370 | $54,775 | $217,300 | 62.2% | 26.5% | 16.1% | 26 | 13,045 | 100% of its land |
| 04345 | Gardiner | 12,579 | 5,083 | $77,410 | $242,800 | 77.6% | 27.7% | 7.7% | 12 | 5,424 | 100% of its land |
| 04963 | Oakland | 7,524 | 3,121 | $77,708 | $247,200 | 79.9% | 34.3% | 7.2% | 7 | 3,552 | 100% of its land |
| 04364 | Winthrop | 6,191 | 2,522 | $86,470 | $294,800 | 92.5% | 27.2% | 17.1% | 5 | 2,493 | 100% of its land |
| 04989 | Vassalboro | 4,592 | 1,960 | $72,300 | $244,300 | 82.5% | 31.4% | 5.9% | 3 | 1,956 | 100% of its land |
| 04358 | South China | 4,526 | 1,895 | $96,309 | $240,000 | 91.8% | 29.9% | 3.1% | 4 | 1,670 | 100% of its land |
| 04350 | Litchfield | 3,680 | 1,519 | $84,904 | $243,900 | 96.7% | 24.4% | 3.9% | 3 | 1,639 | 100% of its land |
| 04259 | Monmouth | 3,610 | 1,492 | $83,919 | $298,300 | 78.0% | 28.0% | 8.7% | 4 | 1,359 | 100% of its land |
| 04927 | Clinton | 3,385 | 1,394 | $71,458 | $187,000 | 95.1% | 18.9% | 5.5% | 2 | 1,164 | 100% of its land |
| 04917 | Belgrade | 3,351 | 1,377 | $88,338 | $312,200 | 93.8% | 20.0% | 5.4% | 3 | 1,358 | 100% of its land |
| 04344 | Farmingdale | 3,017 | 1,439 | $71,635 | $249,700 | 65.6% | 23.0% | 5.3% | 1 | 493 | 100% of its land |
| 04363 | Windsor | 2,690 | 1,071 | $63,178 | $228,800 | 89.1% | 31.2% | 7.1% | 1 | 744 | 100% of its land |
| 04355 | Readfield | 2,651 | 1,027 | $86,504 | $326,400 | 89.9% | 27.6% | 9.4% | 2 | 911 | 100% of its land |
| 04347 | Hallowell | 2,592 | 1,289 | $68,398 | $295,300 | 58.3% | 14.7% | 18.8% | 2 | 1,120 | 100% of its land |
| 04351 | Manchester | 2,424 | 983 | $92,031 | $299,600 | 85.0% | 23.3% | 10.7% | 2 | 956 | 100% of its land |
| 04910 | Albion | 2,204 | 957 | $62,361 | $230,900 | 79.0% | 20.3% | 8.7% | 2 | 856 | 100% of its land |
| 04988 | Unity | 1,894 | 588 | $62,929 | $203,600 | 73.0% | 24.0% | 25.4% | 1 | 686 | 21% of its land |
| 04352 | Mount Vernon | 1,716 | 735 | $74,395 | $264,200 | 89.8% | 20.4% | 2.4% | 2 | 742 | 100% of its land |
| 04346 | Randolph | 1,610 | 774 | $66,574 | $174,300 | 77.5% | 23.3% | 7.2% | 2 | 741 | 100% of its land |
| 04349 | Kents Hill | 1,383 | 620 | $59,500 | $257,600 | 88.7% | 11.9% | 6.1% | 1 | 521 | 100% of its land |
| 04284 | Wayne | 1,101 | 533 | $93,194 | $362,800 | 89.9% | 11.4% | 11.0% | 1 | 505 | 100% of its land |
| 04265 | North Monmouth | 552 | 307 | $43,506 | $169,900 | 88.6% | 10.7% | 1.6% | — | — | 100% of its land |
| 04360 | Vienna | 536 | 243 | $75,481 | $276,400 | 91.8% | 25.5% | 3.4% | 1 | 246 | 100% of its land |
| 04359 | South Gardiner | 298 | 136 | — | $186,700 | 25.0% | 1.5% | 0.3% | — | — | 100% of its land |
| 04918 | Belgrade Lakes | 0 | 0 | — | — | — | — | — | — | — | 100% of its land |
| 04926 | China Village | 0 | 0 | — | — | — | — | — | — | — | 100% of its land |
A ZIP code is listed for Kennebec County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Augusta — 19,077 residents · 1 ZIP code
- Waterville — 17,077 residents · 1 ZIP code
- Gardiner — 6,088 residents · 2 ZIP codes
- Winslow — 5,873 residents · 1 ZIP code
- Winthrop — 3,108 residents · 1 ZIP code
- Oakland — 2,710 residents · 1 ZIP code
- Hallowell — 2,592 residents · 1 ZIP code
- Farmingdale — 2,064 residents · 1 ZIP code
- Randolph — 1,610 residents · 1 ZIP code
- Clinton — 1,381 residents · 1 ZIP code
Rankings
- Richest ZIP codes in Kennebec County — 22 ZIP codes ranked
- ZIP codes with the highest home values in Kennebec County — 22 ZIP codes ranked
- ZIP codes with the highest homeownership in Kennebec County — 22 ZIP codes ranked
- ZIP codes with the most families with kids in Kennebec County — 22 ZIP codes ranked
- ZIP codes with the most new movers in Kennebec County — 22 ZIP codes ranked
- Youngest ZIP codes in Kennebec County — 22 ZIP codes ranked
- Oldest ZIP codes in Kennebec County — 22 ZIP codes ranked
- Fastest-growing ZIP codes in Kennebec County — 22 ZIP codes ranked
Price a mailing to Kennebec County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Kennebec County, ME?
- 04901, 04330, 04345, 04963, 04364, 04989, 04358, 04350, 04259, 04927, 04917, 04344, 04363, 04355, 04347, 04351, 04910, 04988, 04352, 04346, 04349, 04284, 04265, 04360, 04359, 04918 and 04926. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Kennebec County?
- 126,808 residents in 54,312 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Kennebec County?
- $69,077 for the county as a whole. Its ZIP codes range from $54,775 (04330) to $96,309 (04358).
- Which Kennebec County ZIP code has the highest median household income?
- 04358, at $96,309, among ZIP codes with at least 1,000 residents. See the full ranking of Kennebec County ZIP codes by income.
- How many carrier routes and mailboxes are in Kennebec County?
- For the 23 of 27 ZIP codes in EDDM2GO's stored route library: 110 carrier routes reaching 51,785 residential and 2,974 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.