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South Thomaston, ME ZIP code

The ZIP code for South Thomaston, Maine is 04858. It is in Knox County.

Population in these ZIPs
1,378
Avg. median income
$87,100population-weighted
Typical home value
$466,400population-weighted
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ZIP codes within 10 miles

South Thomaston, ME ZIP code list

South Thomaston, ME ZIP codes
ZIP codePopulationMedian incomeTypical home value
048581,378$87,059$466,400

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 South Thomaston

Frequently asked questions

What is the ZIP code for South Thomaston, ME?

The ZIP code for South Thomaston, ME is 04858.

What county is South Thomaston, Maine in?

South Thomaston ZIP codes are in Knox County.