Skip to main content

Area data

South Thomaston, ME — ZIP 04858

Population: 1,378 (Census ACS)

The median home value in ZIP 04858 (South Thomaston, ME) is $472,252 — up 1.9% over the past year. Homes sell for a median $610,000 after a median 56 days on market. FEMA's National Risk Index rates the county's overall natural-hazard risk Very Low, with icestorm, winterweather, coastalflooding the top-rated hazards. Cost of living is 3.0% below the US average (BEA, metro/state-level).

Backed by 25+ public sourcesFEMA · U.S. Census · NOAA · Dept. of Education · EPA · and more

$472,252

Median home value

+1.9%

1-year change

56

Median days on market

Very Low

Hazard risk (county)

Home values & appreciation

Median home value
$472,252
1-year appreciation
+1.9%
3-year appreciation
+5.6%
5-year appreciation
+29.8%
10-year appreciation
+105.3%
All-time peak (2026-06)
$475,059
House Price Index (state)
499.0 (+1.0% YoY)

Sources: home value index (ZIP-level) · FHFA House Price Index (state-level)

Market activity

Median sale price
$610,000
Median list price
$499,000
Median price per sqft
$378
1-year sale-price change
+26.8%
Median days on market
56 days
Homes sold (recent period)
5
For-sale inventory
15
Sale-to-list ratio
97.0%
Active listings
18
New listings (monthly)
5

Source: recent area sales and market data (ZIP-level)

Rents

Studio fair-market rent
$1,101/mo
1BR fair-market rent
$1,236/mo
2BR fair-market rent
$1,503/mo
3BR fair-market rent
$1,968/mo
4BR fair-market rent
$1,975/mo

Sources: market rent index (ZIP-level) · HUD Fair Market Rents (metro/county-level, 40th-percentile regulatory reference)

Affordability

Cost of living index (Average)
97.0 (100 = US avg)
Electricity rate (state-level)
27.8¢/kWh
Natural gas rate (state-level)
$19.00/MCF
30-year mortgage rate (national)
7.40%
15-year mortgage rate (national)
6.73%

Sources: BEA Regional Price Parities (metro/state-level) · EIA energy rates (state-level) · Freddie Mac PMMS (national)

Natural hazards & flood risk

Overall hazard risk (county)
Very Low
Top hazards (county)
iceStorm, winterWeather, coastalFlooding, hurricane
Notable hazard ratings (county)
drought: Relatively Low · coldWave: Relatively Low · iceStorm: Relatively High · hurricane: Relatively Moderate · landslide: Relatively Low · lightning: Relatively Low
Wildfire risk to homes (county)
Higher than 5% of US counties
Buildings in wildfire direct-exposure zone
71.3%
Radon potential (county)
Moderate radon potential — EPA Zone 2 of 3
EPA Superfund (NPL) sites within 5 mi
None
Nearest Superfund site
Callahan Mine (22.9 mi)
EPA recommends radon testing for every home regardless of zone.

Sources: FEMA National Risk Index (county-level) · FEMA flood data (ZIP-level) · USDA Forest Service Wildfire Risk to Communities (county-level) · EPA radon zones + Superfund NPL

Climate (30-year normals)

Average annual temperature
46.0°F
Average high
55.0°F
Average low
38.0°F
Annual precipitation
47.6 in
Annual snowfall
53.1 in
USDA plant hardiness zone
6a (extreme annual low -10 to -5°F)

Sources: NOAA Climate Normals (30-year, nearest-station) · USDA Plant Hardiness Zone Map (2023)

Air quality

Air quality rating
Good
Median AQI (annual)
33
Days with Good air quality
351
Days with Moderate air quality
8
Highest AQI recorded (year)
77

Source: EPA air quality data (nearest monitoring station, annual)

Amenities

National parks within ~60 mi
2
Nearest national park
Frances Perkins National Monument (22 mi)
National parks include
Frances Perkins National Monument, Acadia National Park
Airports within 30 mi
13
Nearest airport
Knox County Regional Airport (RKD) (4 mi)
Nearest major airport
Knox County Regional Airport (RKD) (4 mi)
Hospitals nearby (~15 mi)
7
Hospitals include
MAINE GENERAL MEDICAL CENTER, TOGUS VA MEDICAL CENTER, RIVERVIEW PSYCHIATRIC CENTER
Avg hospital rating (CMS)
3.4 / 5
Best hospital rating nearby (CMS)
4.0 / 5
EV charging stations (within 10 mi)
40
Solar radiation rating
Fair (3.7 kWh/m²/day)

Sources: National Park Service · FAA airport data · CMS hospital data · DOE/NREL (proximity-based)

Migration

Net migration (county)
+31 tax filers

Source: IRS county-to-county migration data (county-level, ~12-month lag)

Housing stock

Median year housing built
1,981
Housing built before 1970
30.4%
Housing built 2000 or later
26.7%
Median annual property tax
$3,442
Households with broadband internet
74.2%

Source: Census ACS 5-year estimates (ZIP-level)

Employment & development

Total county employment
14,223
Average weekly wage
$1,100
Top industries (by employment)
Health Care, Accommodation & Food, Other Services
Annual residential building permits (county)
191

Sources: BLS QCEW (county-level) · Census Building Permits (county-level)

How it compares

ZIP 04858State medianUS median
Median home value$472,252$341,768$288,527
Median sale price$610,000$415,000$325,000
Median days on market56 days55 days51 days
Median annual property tax$3,442$2,264$2,006

State and US medians are computed across all US ZIP codes with sufficient public-data coverage, from the same sources as the figures above.

Area data compiled from public government, academic, and industry research feeds. Data sources →

Common questions

What is the median home value in ZIP 04858?
$472,252.
What is the median sale price in ZIP 04858?
$610,000.
How long do homes take to sell in ZIP 04858?
Median days on market: 56 days.
What is typical rent in ZIP 04858?
2-bedroom fair-market rent: $1,503/month (HUD FMR — a 40th-percentile regulatory reference, not market-observed).
What is the natural-hazard risk in ZIP 04858?
Overall risk: Very Low (FEMA NRI, county-level). Top hazards: iceStorm, winterWeather, coastalFlooding, hurricane.
What is the wildfire risk in ZIP 04858?
Risk to homes is higher than 5% of US counties (USDA Forest Service Wildfire Risk to Communities, county-level).
What is the radon potential in ZIP 04858?
Moderate radon potential — EPA Zone 2 of 3, county-level. EPA recommends testing every home regardless of zone.
Are there Superfund sites near ZIP 04858?
No current or proposed National Priorities List sites within 5 miles (EPA).
What is the air quality in ZIP 04858?
Good. Median AQI: 33. (EPA AQI).
What is the cost of living in ZIP 04858?
Regional Price Parity: 97.0 (100 = US average) (Average) (BEA RPP, metro/state-level).

Nearby ZIP codes

Listing a home in South Thomaston, ME?

REAIGENT7 gives every listing its own AI assistant grounded in this same public data — it answers buyer and renter questions about the home and the area, around the clock, and sends every lead to the listing agent. Agents: it installs on your listing page, your website, or WordPress.

Data last updated

Most recent source refresh: Oct 2026. See all data sources →

Data compiled by REAIGENT7 — AI listing platform for real estate agents