House Prices

The Keag South Thomaston, ME House Prices & Home Values 2026


Average Data

average house price$642,000
average size per house1978 ft²
average price per ft²348 $ / ft²

05/31/2026 - The value range (VR) for house prices in The Keag South Thomaston, ME is $330.6/ sqft to $365.4/ sqft. An average home with 1978 sqft costs approximately $699,702 to $773,355. South Thomaston, ME includes 1 ZIP codes and it is located in Knox county. The lowest prices are found in ZIP 04858, while the highest are in ZIP 04858. The average price per sqare feet is $348. Our analysis is based on 3 property listings.

Avergage prices by ZIP codes The Keag South Thomaston

04858348 $ / ft²




Historical development of home values in The Keag South Thomaston

Year Estimated value (USD) Change vs. 2025
2010 $298,156 -53.6%
2011 $286,627 -55.4%
2012 $285,855 -55.5%
2013 $296,539 -53.8%
2014 $311,285 -51.5%
2015 $327,261 -49.0%
2016 $344,340 -46.4%
2017 $362,925 -43.5%
2018 $382,990 -40.3%
2019 $400,748 -37.6%
2020 $421,465 -34.4%
2021 $479,371 -25.3%
2022 $558,839 -13.0%
2023 $589,321 -8.2%
2024 $623,415 -2.9%
2025 $642,000 0.0%

Graph: estimated home values in The Keag South Thomaston over time (USD)



Example: 100% financing house in The Keag South Thomaston

Loan amount: $642,000

Interest rate: 6.42%

Fixed monthly payment: $4,024.16

Breakdown in the 1st month:
Interest portion: $3,434.70  –  Principal portion: $589.46

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $41,004.51 $7,285.40 $634,714.60
2 $40,522.77 $7,767.14 $626,947.46
3 $40,009.18 $8,280.72 $618,666.74
4 $39,461.64 $8,828.27 $609,838.47
5 $38,877.88 $9,412.02 $600,426.45
6 $38,255.53 $10,034.38 $590,392.07
7 $37,592.02 $10,697.88 $579,694.19
8 $36,884.65 $11,405.26 $568,288.93
9 $36,130.49 $12,159.41 $556,129.52
10 $35,326.48 $12,963.43 $543,166.09
11 $34,469.29 $13,820.61 $529,345.47
12 $33,555.43 $14,734.48 $514,610.99
13 $32,581.14 $15,708.77 $498,902.23
14 $31,542.43 $16,747.48 $482,154.75
15 $30,435.03 $17,854.88 $464,299.87
16 $29,254.41 $19,035.50 $445,264.37
17 $27,995.72 $20,294.19 $424,970.18
18 $26,653.80 $21,636.10 $403,334.08
19 $25,223.15 $23,066.75 $380,267.33
20 $23,697.91 $24,592.00 $355,675.33
21 $22,071.81 $26,218.10 $329,457.23
22 $20,338.18 $27,951.72 $301,505.50
23 $18,489.93 $29,799.98 $271,705.52
24 $16,519.46 $31,770.45 $239,935.07
25 $14,418.69 $33,871.21 $206,063.86
26 $12,179.02 $36,110.89 $169,952.97
27 $9,791.25 $38,498.65 $131,454.32
28 $7,245.60 $41,044.31 $90,410.01
29 $4,531.62 $43,758.29 $46,651.72
30 $1,638.18 $46,651.72 $0.00

Note: The calculation is based on a standard annuity mortgage with a fixed monthly payment over the entire term. Extra payments, interest rate changes, and additional purchase costs (e.g. taxes, notary fees) are not included.


How to sell in The Keag South Thomaston, ME


1500 sqft3900 sqft
Ø selling price$675,834$1,437,682
Ø fast selling$614,394$1,293,914
Ø high price sale$737,273$1,581,451

In 2026, houses in The Keag South Thomaston, ME will be offered at an average price of $348 per square foot. A 1,500 sqft home priced at $675,834 is 24.61% more expensive per square foot than a 3,900 sqft home priced at $1,437,682. Home prices in The Keag South Thomaston, ME vary significantly depending on the property’s condition and exact location. For a quick sale, a 2,700 sqft home should be listed at around $995,319. Sellers who can wait longer may achieve a higher price of up to $1,216,501.

FAQ – Home Values in The Keag South Thomaston

What is the median home value in The Keag South Thomaston in 2026?

In 2026, the typical home value in The Keag South Thomaston is about $642,000 for an average home size of 1978 square feet. This corresponds to an average price of roughly $348 per square foot.

What is the average cost per square foot in The Keag South Thomaston?

In 2026, homes in The Keag South Thomaston sell for an average of around $348 per square foot, with a typical range between $330.6 and $365.4 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in The Keag?

The average home size in The Keag South Thomaston is about 1978 square feet, with an estimated 2026 value around $642,000.



Neighborhoods close to The Keag South Thomaston, ME

Spruce Head Island Spruce Head, ME388 $ / ft²
Tenants Harbor Village Tenants Harbor, ME302 $ / ft²
Vinalhaven Village Vinalhaven, ME246 $ / ft²
Rockport Village Rockport, ME210 $ / ft²
Hupper Island Port Clyde, ME265 $ / ft²
Ash Point Owls Head, ME271 $ / ft²
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