Home > ME > Knox County > Thomaston > Zip 04861

Zip Code 04861 — Thomaston, ME

04861 is a ZIP Code associated with Thomaston, ME, located within Knox. 04861 ranks #6 out of 19 ZIP codes in Knox County by population (and #135 out of 426 in ME). The area supports an estimated population of 2,769 residents across Data Pending housing units, with a population density of 97.7 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (44.093020, -69.174830)

Data MetricLocal Statistic
Postal / Zip Code04861
Primary CityThomaston
State / ProvinceME
CountyKnox
Total Population2,769
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density97.7 people/sq mi
TimezoneAmerica/New_York

How 04861 Compares

MetricZIP 04861Knox CountyME State Average
Population2,76941,003 (Total)1,387,734 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density97.7 /sq mi----
County Pop Rank#6 of 19----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 04841Rockland3.0 mi7,035N/A
Zip 04858South Thomaston3.5 mi1,378N/A
Zip 04864Warren4.3 mi4,932N/A
Zip 04854Owls Head5.6 mi1,482N/A
Zip 04859Spruce Head6.4 mi753N/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 →