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Castaic, CA vs Wilton, CA

152
Castaic
California
VS
-8.5%
166
Wilton
California

Castaic is moderately more affordable than Wilton, with a 8.5% lower cost of living index. Castaic scores 152 compared to 166 for Wilton, where the US average is 100. This difference means residents of Wilton can expect to pay noticeably more for everyday expenses, housing, and services.

On the housing front, median rent in Castaic is $1,751/month compared to $1,792/month in Wilton — a 2% difference. Home values follow the same pattern: Castaic is more affordable at $710,400 median vs $891,200.

Median household income in Castaic is $132,153 compared to $171,579 in Wilton (-23%). While Wilton is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Castaic spend roughly 15.9% of their income on rent, more than the 12.5% in Wilton.

Income & Cost

Cost of Living Index
Castaic
152
9% cheaper
Wilton
166
Median Household Income
Castaic
$132,153
Wilton
$171,579
23% higher

Housing

Median Rent
Castaic
$1,751
2% cheaper
Wilton
$1,792
Median Home Value
Castaic
$710,400
20% cheaper
Wilton
$891,200
Population
Castaic
18,479
Wilton
6,198

Salary Equivalency Calculator

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Rent by Bedroom Size

HUD Fair Market Rent (FY 2026) — metro area average

Studio
Castaic $2,031
Wilton $1,784
12% cheaper
1 Bed
Castaic $2,272
Wilton $1,871
18% cheaper
2 Bed
Castaic $2,835
Wilton $2,305
19% cheaper
3 Bed
Castaic $3,599
Wilton $3,077
15% cheaper
4 Bed
Castaic $4,010
Wilton $3,552
11% cheaper

Everyday Prices

BLS Average Prices by metro area

Gasoline (regular)
Castaic $3.28
Wilton $3.22
US $3.07
🥚
Eggs (grade A, large)
Castaic $2.68
Wilton $2.62
US $2.50
🥛
Milk (whole)
Castaic $4.31
Wilton $4.22
US $4.03
🍞
Bread (white)
Castaic $1.98
Wilton $1.94
US $1.85
🍗
Chicken breast
Castaic $4.44
Wilton $4.35
US $4.14
Electricity
Castaic $0.27
Wilton $0.26
US $0.19