South Thomaston, ME 04858 ZIP Code Profile

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South Thomaston, ME

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ZIP Code 04858: Basic Data & USPS Preferred City Name

Preferred Name, USPS
South Thomaston, ME 04858

Acceptable Alternative
S Thomaston, ME 04858

  • ZIP Code Type: STANDARD
  • County: Knox County
  • Centroid: Latitude 44.04, Longitude -69.147
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 32
  • PO Box Addresses: 242
  • Residential Addresses: 472
    • Multi-Family Addresses: 0
    • Single Family Addresses: 472

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

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04858 ZIP Code Map

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South Thomaston, ME 04858 Data & Demographics (As of July 1, 2017)


Total Population 1,582
Daytime Population: Workers 214
Daytime Population: Residents 763
Total Daytime Population (TDP) 977
Ratio TDP/Total Population1 0.62
Population in Households 1,582
Population in Familes 1,243
Population in Group Qrtrs 0
Population Density2 134
Diversity Index3 10


Median Household Income $51,117
Average Household Income $66,667
Per Capita Income $28,951


Total Housing Units 934 (100%)
Owner Occupied HU 558 (59.7%)
Renter Occupied HU 129 (13.8%)
Vacant Housing Units 247 (26.4%)
Median Home Value $225,758
Average Home Value $298,432


Total Households 687
Average Household Size 2.3
Family Households 446
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.19% 0.41%
Households 0.22% 0.43%
Families 0.09% 0.36%
Median Household Income   1.68%
Per Capita Income   2.89%

South Thomaston, ME 04858 - Peer Comparisons by Rank and Percentile

The table below compares 04858 to the other 399 ZIP Codes in Maine by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 211 48th
Population Density # 88 78th
Diversity Index # 166 58th
Median Household Income # 152 62nd
Per Capita Income # 136 66th

Additional comparisons and rankings can be made with a VERY EASY TO USE Maine Census Data Comparison Tool.

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