Kennebec County, ME Demographics & ZIP Codes
Kennebec County, Maine demographics and median household income by ZIP code — 26 ZIP codes — population 125,584 — avg. income $72,987 — avg. home value $233,942. Compare income, housing, and ZIP-level data on US5.
Kennebec County demographics
Kennebec County, Maine covers 26 ZIP codes, with a combined ZIP-area population of about 125,584.
Median household income in Kennebec County
The average median household income across ZIP codes in Kennebec County, Maine is about $72,987 — about 4% above the ME ZIP average ($70,279), and about 3% below the U.S. median ($75,149).
Among ZIPs with income data, 04359 (Gardiner) is near the top at about $120,652, while 04265 is near the bottom at about $43,712.
Housing in Kennebec County
For housing in Kennebec County, Maine, the average median home value is about $233,942 and the average median rent is about $792.
The most populous ZIP is 04901 (Waterville) with about 27,431 residents. Use the table below to compare ZIP codes across the county.
ZIP codes in Kennebec County
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 04901 | Waterville | Kennebec County | ME | 27,431 | $54,122 | $188,800 |
| 04330 | Augusta | Kennebec County | ME | 26,517 | $55,158 | $197,600 |
| 04345 | Gardiner | Kennebec County | ME | 12,363 | $68,844 | $208,700 |
| 04963 | Oakland | Kennebec County | ME | 7,375 | $73,611 | $228,200 |
| 04364 | Winthrop | Kennebec County | ME | 6,153 | $82,858 | $273,100 |
| 04989 | — | Kennebec County | ME | 4,544 | $74,828 | $217,900 |
| 04358 | — | Kennebec County | ME | 4,475 | $93,825 | $234,300 |
| 04350 | — | Kennebec County | ME | 3,635 | $75,329 | $236,100 |
| 04259 | — | Kennebec County | ME | 3,493 | $94,868 | $282,300 |
| 04927 | Clinton | Kennebec County | ME | 3,385 | $74,544 | $172,100 |
| 04917 | — | Kennebec County | ME | 3,298 | $86,021 | $304,600 |
| 04344 | Farmingdale | Kennebec County | ME | 3,001 | $60,000 | $205,700 |
| 04363 | — | Kennebec County | ME | 2,666 | $65,852 | $215,600 |
| 04355 | — | Kennebec County | ME | 2,628 | $88,583 | $300,900 |
| 04347 | Hallowell | Kennebec County | ME | 2,570 | $58,811 | $266,700 |
| 04351 | — | Kennebec County | ME | 2,464 | $89,453 | $284,700 |
| 04910 | — | Kennebec County | ME | 2,358 | $57,356 | $207,900 |
| 04352 | — | Kennebec County | ME | 1,728 | $73,664 | $228,300 |
| 04346 | Randolph | Kennebec County | ME | 1,479 | $52,917 | $157,000 |
| 04349 | — | Kennebec County | ME | 1,343 | $56,250 | $265,200 |
| 04284 | — | Kennebec County | ME | 1,096 | $75,987 | $327,900 |
| 04265 | — | Kennebec County | ME | 645 | $43,712 | $163,900 |
| 04360 | — | Kennebec County | ME | 562 | $74,453 | $248,600 |
| 04359 | Gardiner | Kennebec County | ME | 375 | $120,652 | $198,500 |
| 04918 | — | Kennebec County | ME | — | — | — |
| 04926 | — | Kennebec County | ME | — | — | — |
Frequently asked questions
What are the demographics of Kennebec County?
Kennebec County, Maine has a combined ZIP-area population of about 125,584 across 26 ZIP codes. Browse the ZIP table for population, income, and housing by code.
What is the median household income in Kennebec County?
The average median household income across ZIP codes in Kennebec County, Maine is about $72,987, about 4% above the state ZIP average ($70,279), and about 3% below the U.S. median ($75,149). Average median home value is about $233,942. Among ZIPs with data, 04359 (Gardiner) is near the top ($120,652) and 04265 is near the bottom ($43,712).
How many ZIP codes are in Kennebec County?
Kennebec County, Maine includes 26 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Kennebec County?
This page lists ZIP codes in Kennebec County, Maine with population, median household income, and home value. Select a ZIP for a full demographics profile.