Home > ME > Knox County > South Thomaston > Zip 04858

Zip Code 04858 — South Thomaston, ME

04858 is a ZIP Code associated with South Thomaston, ME, located within Knox. The postal region supports an estimated population of 1,378 residents across Data Pending housing units, with a population density of 46.6 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (44.046380, -69.145200)

Data MetricLocal Statistic
Postal / Zip Code04858
Primary CitySouth Thomaston
State / ProvinceME
CountyKnox
Total Population1,378
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density46.6 people/sq mi
TimezoneAmerica/New_York

How 04858 Compares

MetricZIP 04858Knox CountyME State Average
Population1,37841,0031,387,734
Median IncomeData PendingN/AN/A
Population Density46.6 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 04854Owls Head3.0 mi1,482N/A
Zip 04859Spruce Head3.3 mi753N/A
Zip 04861Thomaston3.5 mi2,769N/A
Zip 04841Rockland5.6 mi7,035N/A
Zip 04563Cushing5.9 mi1,460N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →