Winthrop, ME ZIP code
The ZIP code for Winthrop, Maine is 04364. It is in Kennebec County.
- Population in these ZIPs
- 6,191
- Avg. median income
- $86,500population-weighted
- Typical home value
- $341,100population-weighted
- Metro area
- Augusta-Waterville, ME
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Winthrop, ME ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 04364 | 6,191 | $86,470 | $341,100 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Winthrop
- North Monmouth 4 mi
- Wayne 5 mi
- Readfield 5 mi
- Manchester 5 mi
- Monmouth 6 mi
- Hallowell 7 mi
- Farmingdale 8 mi
- Leeds 8 mi
- Augusta 10 mi
- Litchfield 10 mi
- Kents Hill 10 mi
- Mount Vernon 11 mi
Frequently asked questions
What is the ZIP code for Winthrop, ME?
The ZIP code for Winthrop, ME is 04364.
What county is Winthrop, Maine in?
Winthrop ZIP codes are in Kennebec County.