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Rocklin, CA vs Seal Beach, CA

159
Rocklin
California
VS
+3.6%
154
Seal Beach
California

Rocklin, CA and Seal Beach, CA have a very similar cost of living, with only a 3.6% difference in their overall index. Rocklin scores 159 while Seal Beach scores 154 on the cost of living index, where 100 represents the national average. The day-to-day expenses for residents in both cities are comparable, though differences emerge when looking at specific categories.

On the housing front, median rent in Rocklin is $2,178/month compared to $2,419/month in Seal Beach — a 10% difference. Interestingly, home values tell a different story: while Rocklin has cheaper rent, Seal Beach actually has lower median home values ($492,200 vs $673,300).

Median household income in Rocklin is $120,916 compared to $83,045 in Seal Beach (+45.6%). While Rocklin is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Rocklin spend roughly 21.6% of their income on rent, less than the 35% in Seal Beach. The Rocklin ratio exceeds the commonly recommended 30% threshold, which can put pressure on household budgets.

Climate-wise, both cities share similar average temperatures (63.4°F vs 64.9°F). Rocklin receives more rainfall at 19.2" per year compared to 12" in Seal Beach.

Income & Cost

Cost of Living Index
Rocklin
159
Seal Beach
154
3% cheaper
Median Household Income
Rocklin
$120,916
31% higher
Seal Beach
$83,045

Housing

Median Rent
Rocklin
$2,178
10% cheaper
Seal Beach
$2,419
Median Home Value
Rocklin
$673,300
Seal Beach
$492,200
27% cheaper
Population
Rocklin
72,340
Seal Beach
24,868

Salary Equivalency Calculator

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Rent by Bedroom Size

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

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

Everyday Prices

BLS Average Prices by metro area

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

Climate

NOAA 30-year normals (1991-2020)

Avg Temp
Rocklin 63.4°F
Seal Beach 64.9°F
Summer High
Rocklin 94°F
Seal Beach 81°F
Winter Low
Rocklin 41°F
Seal Beach 47°F
Rainfall
Rocklin 19.2"
Seal Beach 12"
Rainy Days
Rocklin 61d
Seal Beach 35d