House Prices

House Prices & Home Values Castlewood, SD 2026


Average Data

average house price$615,000
average size per house1766 ft²
average price per ft²349 $ / ft²

05/01/2026 - The value range (VR) for house prices in Castlewood, SD is $348/ sqft to $348/ sqft. An average home with 1766 sqft costs approximately $614,568 to $614,568. Castlewood, SD includes 1 ZIP codes and it is located in Hamlin county. The lowest prices are found in ZIP 57223, while the highest are in ZIP 57223. The average price per sqare feet is $349. Our analysis is based on 1 property listings.

Avergage prices by ZIP codes Castlewood

57223320 $ / ft²




Historical development of home values in Castlewood

Year Estimated value (USD) Change vs. 2025
2010 $285,617 -53.6%
2011 $274,572 -55.4%
2012 $273,833 -55.5%
2013 $284,068 -53.8%
2014 $298,193 -51.5%
2015 $313,498 -49.0%
2016 $329,858 -46.4%
2017 $347,662 -43.5%
2018 $366,883 -40.3%
2019 $383,894 -37.6%
2020 $403,740 -34.4%
2021 $459,210 -25.3%
2022 $535,336 -13.0%
2023 $564,537 -8.2%
2024 $597,196 -2.9%
2025 $615,000 0.0%

Graph: estimated home values in Castlewood over time (USD)



Example: 100% financing house in Castlewood

Loan amount: $615,000

Interest rate: 6.00%

Fixed monthly payment: $3,687.24

Breakdown in the 1st month:
Interest portion: $3,075.00  –  Principal portion: $612.24

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $36,694.56 $7,552.27 $607,447.73
2 $36,228.75 $8,018.08 $599,429.65
3 $35,734.21 $8,512.62 $590,917.03
4 $35,209.17 $9,037.66 $581,879.37
5 $34,651.75 $9,595.08 $572,284.29
6 $34,059.95 $10,186.88 $562,097.41
7 $33,431.64 $10,815.19 $551,282.22
8 $32,764.58 $11,482.25 $539,799.98
9 $32,056.38 $12,190.44 $527,609.53
10 $31,304.50 $12,942.32 $514,667.21
11 $30,506.25 $13,740.58 $500,926.63
12 $29,658.76 $14,588.07 $486,338.56
13 $28,759.00 $15,487.83 $470,850.73
14 $27,803.75 $16,443.08 $454,407.65
15 $26,789.57 $17,457.26 $436,950.39
16 $25,712.85 $18,533.98 $418,416.41
17 $24,569.71 $19,677.12 $398,739.29
18 $23,356.07 $20,890.76 $377,848.53
19 $22,067.57 $22,179.26 $355,669.28
20 $20,699.61 $23,547.22 $332,122.06
21 $19,247.26 $24,999.56 $307,122.49
22 $17,705.35 $26,541.48 $280,581.01
23 $16,068.33 $28,178.50 $252,402.50
24 $14,330.34 $29,916.49 $222,486.01
25 $12,485.15 $31,761.68 $190,724.34
26 $10,526.16 $33,720.67 $157,003.67
27 $8,446.35 $35,800.48 $121,203.19
28 $6,238.25 $38,008.58 $83,194.61
29 $3,893.96 $40,352.87 $42,841.74
30 $1,405.09 $42,841.74 $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 Castlewood, SD


1500 sqft3900 sqft
Ø selling price$633,435$1,347,489
Ø fast selling$575,850$1,212,741
Ø high price sale$691,020$1,482,238

In 2026, houses in Castlewood, SD will be offered at an average price of $349 per square foot. A 1,500 sqft home priced at $633,435 is 21.11% more expensive per square foot than a 3,900 sqft home priced at $1,347,489. Home prices in Castlewood, SD vary significantly depending on the neighborhood and location. For a quick sale, a 2,700 sqft home should be listed at around $932,878. Sellers who can wait longer may achieve a higher price of up to $1,140,184.


Castlewood, SD Travel & Living Guide

Location & Overview

Castlewood, South Dakota is a friendly small town in Hamlin County known for its prairie scenery and community pride.
Located just off U.S. Highway 81 near Watertown, it offers easy access to regional jobs, shopping, and medical services.

History & Community

Founded in the late 19th century along the railroad, Castlewood blends agricultural roots with a forward-looking spirit.
Local traditions, from school athletics to volunteer-led events, create a close-knit atmosphere that welcomes new residents and visitors.

Outdoor Recreation & Attractions

Outdoors enthusiasts enjoy nearby lakes and rivers for fishing, boating, and waterfowl viewing?just a few of the things to do in Castlewood, SD across the changing seasons.
Parks, ball fields, and family-friendly facilities give residents space to gather, exercise, and celebrate community milestones.

Education & Economy

The Castlewood School District is a focal point for academics and activities, supporting students with small class sizes and strong school spirit.
Local farms, agribusiness, construction, and small retail shops anchor the economy, while commuters tap into larger employers in the Watertown area.

Housing & Quality of Life

Housing and real estate options range from historic homes to new builds, with comparatively affordable costs and room to grow.
Low crime, neighborly values, and expansive South Dakota skies make Castlewood, SD a relaxing place to live, work, and explore.



FAQ – Home Values in Castlewood

What is the median home value in Castlewood in 2026?

In 2026, the typical home value in Castlewood is about $615,000 for an average home size of 1766 square feet. This corresponds to an average price of roughly $349 per square foot.

What is the average cost per square foot in Castlewood?

In 2026, homes in Castlewood sell for an average of around $349 per square foot, with a typical range between $348 and $348 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in ?

The average home size in Castlewood is about 1766 square feet, with an estimated 2026 value around $615,000.



Locations close to Castlewood, SD

Claire City, SD144 $ / ft²
Clark, SD28 $ / ft²
Clear Lake, SD67 $ / ft²
Bryant, SD127 $ / ft²
Bruce, SD135 $ / ft²
Bristol, SD201 $ / ft²
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