Market Overview
Home Prices in Castalia, IA
The median home value in Castalia, IA is $309,075 as of mid-2026, according to Zillow's Home Value Index (ZHVI).That's up 17.1% compared to a year ago and up 8.9% from two years prior.
Compared to the U.S. national median of $410,000, homes in Castalia are priced25% below average.
Price History
Castalia Home Price Trend
2022
$220,611
$221K
—
2023
$231,189
$231K
+4.8%
2024
$242,348
$242K
+4.8%
2025
$263,862
$264K
+8.9%
2026
$309,075
$309K
+17.1%
City Comparison
Castalia vs. National Median
🏠 Castalia
$309,075
National Median
$410,000
At $309,075, homes in Castalia cost 25% below the national median of $410,000. This makes Castalia a relatively affordable market for buyers seeking value.
Affordability
What Does It Cost to Buy in Castalia?
20% Down Payment
$61,815
on $309,075
Monthly P&I
$1,612/mo
30-yr @ 6.8%
Total Monthly Est.
~$2,047/mo
incl. taxes & insurance
Income Needed
$81,880
gross annual (30% rule)
10% Down Option
$30,908
+ PMI applies
Loan Amount (20% dn)
$247,260
at current rates
Estimates assume a 30-year fixed mortgage at 6.8%. Monthly total includes estimated property taxes and homeowner's insurance. Actual costs vary.
FAQ
Frequently Asked Questions
What is the average home price in Castalia, IA?
The median home value in Castalia is $309,075 as of mid-2026, according to Zillow's Home Value Index (ZHVI). That's up 17.1% year-over-year.
How much have home prices changed in Castalia?
Over the past year, home values in Castalia have increased by 17.1%.
How much do I need to earn to buy a home in Castalia?
To comfortably afford the median home price of $309,075 with a 20% down payment ($61,815) at today's rates (6.8%), you'd need a gross annual income of approximately $81,880. This assumes keeping total housing costs at or below 30% of gross income.
How does Castalia compare to the national average home price?
The national median home value is approximately $410,000. At $309,075, homes in Castalia are 25% below the national average.