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Castaic home prices and affordability, 2019 to 2025

Castaic home prices rose about 47% from 2019 to 2025, and with higher mortgage rates, buying the median home here now takes $2,036 more a month.

Home prices, 2019 to 2025+47%Our own index · LA County +39%
Median sale, 2025$806,332was $549,500 in 2019
Monthly mortgage payment$4,120was $2,084 in 2019
Income to keep it under 30%$165,000was $83,000 in 2019

How prices moved

Castaic rose about as much as LA County

On our own index, Castaic home prices rose 47% from 2019 to 2025, against 39% for LA County as a whole, and we rate it high confidence.

The median sale rose by about the same, from $549,500 to $806,332. Our own index and the median sale measure different things, so in other neighborhoods they can tell different stories.

See LA County home prices by neighborhood
Castaic+47%
LA County+39%
0%Our own index50%
High confidence

What it costs to buy now

$2,036 more a month than in 2019

With 20% down on the median sale, the monthly mortgage payment went from $2,084 in 2019 to $4,120 in 2025. About half the rise, $1,143, came from higher prices and $893 from the higher mortgage rate, 6.60% against 3.94%.

The 20% down payment grew from $109,900 to $161,266.

2019
$2,084
2025
$4,120
From higher prices $1,143From the higher rate $893

Compare the neighborhoods next door

  • Castaic

    Prices since 2019
    +47%
    Payment in 2025
    $4,120
    Rise a month
    +$2,036

  • Santa Clarita

    Prices since 2019
    +43%
    Payment in 2025
    $4,036
    Rise a month
    +$1,981

  • Stevenson Ranchtoo few sales for our own index

    Prices since 2019
    —
    Payment in 2025
    $5,302
    Rise a month
    +$2,671

  • Sylmar

    Prices since 2019
    +44%
    Payment in 2025
    $3,832
    Rise a month
    +$1,902
All LA County neighborhoods

Your number

What would Castaic cost you?

Change the down payment and rate to see the monthly mortgage payment on the median Castaic home.

Your monthly mortgage payment in Castaic$4,120$380 a month under your budget

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Monthly mortgage payment: principal and interest on a 30-year fixed loan on each neighborhood’s 2025 median sale; taxes and insurance not included.

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A model-generated estimate and analytical context, not investment advice. The estimated value comes from an automated valuation model (AVM). An AVM is an estimated sale price for a property. It is not the same as the opinion of value in an appraisal developed by a licensed appraiser under the Uniform Standards of Professional Appraisal Practice.

Questions about Castaic

How much have Castaic home prices changed since 2019?

On our own index, Castaic home prices rose about 47% from 2019 to 2025, against about 39% for LA County as a whole. We rate the figure high confidence. The median sale went from $549,500 to $806,332.

How much does it cost to buy a home in Castaic?

The median Castaic home sold for $806,332 in 2025. With 20% down, $161,266, and a 30-year fixed loan at 6.60%, the monthly mortgage payment comes to $4,120 before taxes and insurance.

What income do you need to buy in Castaic?

About $165,000 a year for the median Castaic home, by a common rule of thumb that keeps the monthly mortgage payment at 30% of gross income. The same rule gave $83,000 in 2019. Lenders apply their own tests, and taxes and insurance come on top of the payment.

How much has the monthly mortgage payment in Castaic changed since 2019?

The monthly mortgage payment on the median Castaic home rose $2,036, from $2,084 in 2019 to $4,120 in 2025. Higher prices added $1,143, and the higher mortgage rate, 3.94% to 6.60%, added $893.

How does Castaic compare with LA County?

The monthly mortgage payment on the median Castaic home was $4,120 in 2025, lower than the $4,410 on the median LA County home. Since 2019 it rose $2,036, and LA County’s rose $2,135.

What does the full cost to own a home add?

Property tax, insurance, HOA dues and upkeep come on top of the monthly mortgage payment shown here. A free account’s Cost to Own adds them up for a specific home, and three homes a month are free.

Home prices: our own index from Los Angeles County Assessor sales, 2019 to 2025. Monthly mortgage payment is principal and interest on the median sale with 20% down and a 30-year fixed loan, at each year’s average Freddie Mac rate (3.94% in 2019, 6.60% in 2025); taxes and insurance are not included. Sales: Los Angeles County Assessor.