Comparison to Surrounding Areas
The median household income ($87,059) for 04858 is less than the median household income for 04854 ($87,325). But it's more than 04841 ($56,533), 04860 ($86,833), 04861 ($56,435), 04563 ($83,500), 04859 ($75,341), Knox County ($74,096), and South Thomaston town ($86,838).
| 04858 | $87,059 |
| South Thomaston town | $86,838 |
| Knox County | $74,096 |
Get Median Household Income for all Zip Codes in Maine.
The average household income ($105,510) for 04858 is less than the average household income for 04563 ($124,875), 04854 ($120,324), and 04859 ($151,716). But it's more than 04841 ($74,050), 04860 ($98,421), 04861 ($69,568), Knox County ($99,101), and South Thomaston town ($105,156).
| 04858 | $105,510 |
| South Thomaston town | $105,156 |
| Knox County | $99,101 |
Get Average Household Income for all Zip Codes in Maine.
The per-capita income for 04858 is $47,373. The per capita income ($47,373) for 04858 is less than the per capita income for 04563 ($59,310), 04854 ($55,125), 04859 ($70,170), and 04860 ($50,883). But it's more than 04841 ($36,105), 04861 ($33,828), Knox County ($44,763), and South Thomaston town ($47,343).
| 04858 | $47,373 |
| South Thomaston town | $47,343 |
| Knox County | $44,763 |
Get Per-Capita Income for all Zip Codes in Maine.
12.5% of households make over $200,000 a year. The percent high income households (12.5%) for 04858 is less than the percent high income households for 04563 (21.3%), 04854 (15.8%), and 04859 (24.4%). But it's more than 04841 (5.7%), 04860 (11.0%), 04861 (0.0%), Knox County (10.4%), and South Thomaston town (12.4%).
| 04858 | 12.5% |
| South Thomaston town | 12.4% |
| Knox County | 10.4% |
Get High Income Households for all Zip Codes in Maine.
| under 25 years | 25 to 44 years | 45 to 64 years | 65 years and over | |
|---|---|---|---|---|
| 04858 | $-1 | $103,250 | $88,398 | $79,167 |
| South Thomaston town | $-1 | $103,250 | $88,281 | $79,167 |
| Knox County | $67,853 | $86,880 | $82,817 | $62,037 |
Get Median Household Income by Age of Householder for all Zip Codes in Maine.
Use our lookalike & filtering workflow to discover every zip that matches your ideal market profile.
Our Income By Zip Code Lists let you start with a zip like 04858, then automatically find hundreds of similar zips by income, demographics, and growth potential — so you can build a smarter target list in minutes.
Get Your Income By Zip Code List
Get all zip codes in a state or the entire US with data such as median household income.
Starting at $65.
All income statistics above are the most current, comparable income statistics available from the US Census Bureau and are from the American Community Survey 2024 5-year estimates. You can find this information and other demographics for 04858 on the US Census Bureau’s website. These values are in 2024 inflation-adjusted dollars and were downloaded on 29 January 2026.
Margins of error for the income data are:
| Median Household Income | Average Household Income | Per Capita Income | High Income Households | Median Household Income by Age of Householder | ||||
|---|---|---|---|---|---|---|---|---|
| under 25 | 25 to 44 | 45 to 64 | 65+ | |||||
| 04858 | +/-$6,554 | +/-$13,072 | +/-$6,029 | +/-5.1% | +/-$-1 | +/-$15,805 | +/-$9,050 | +/-$24,695 |
| South Thomaston town | +/-$7,037 | +/-$13,055 | +/-$6,012 | +/-5.1% | +/-$-1 | +/-$15,805 | +/-$12,132 | +/-$24,695 |
| Knox County | +/-$3,739 | +/-$4,296 | +/-$1,917 | +/-1.3% | +/-$51,812 | +/-$8,340 | +/-$8,667 | +/-$6,255 |