
Cheap Apartments for Rent in the Castle Neighborhood of San Diego, CA from $1,300 (97 Rentals)
Search the lowest-cost Apartments available for rent right now in the Castle area of San Diego.


3777-3781 37th St

3751 37th St

4244 Poplar St

2504-2510 Fairmount Ave

Courtyard Terrace

39th St. Apartments

3838-3840 43rd St

3762-3764 41st St

4210-20 Thorn St
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Learn the official definition (spending 30% or more of your gross income on housing) and how to calculate your exact rent-to-income ratio. This guide offers expert tips on factoring in total housing costs (including utilities and fees) and budgeting accurately to avoid unnecessary financial strain.

3434 42nd St

3791 Marlborough Ave

3611 Van Dyke Ave

3710-3714 41st St

3653 N 43rd St

3751 Central Ave

3734 43rd St

3828 Cherokee Ave

3731 37th St

3867 38th St
Your Guide to Co-Signers: The Risks, Rewards, and Everything in Between
Thinking about getting a co-signer for your rental application? We break down what a co-signer is, the potential benefits, and the serious risks for both parties. Find out if it's the right choice for you.

2644 Fairmount Ave

3866-3872 41st St

3862 39th St

3818-3822 39th St

3821 38th St

3878 37th St

3821 39th St

3868 38th St

3754 Cherokee Ave

3772 41st St
Roommate Matching: Finding the Right Fit and Avoiding Pitfalls
When searching for a roommate, follow this list of essential steps and set clear expectations to create a solid foundation for a harmonious living situation.

3788 41st St

3533 42nd St

3818 N 41st St

3435 42nd St

3745 Van Dyke Ave

3857 Marlborough Ave

3838 Marlborough Ave

3717 Van Dyke Ave

3511 42nd St

3783 41st St
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4131 Redwood St

3529 Van Dyke Ave

3786 43rd St

3814 Cherokee Ave

3681 Fairmount Ave

3875 Van Dyke Ave

3677 41st St

3821 Cherokee Ave

3770 42nd Street

3756 Marlborough Ave
The Art of the Rental Viewing: What to look for during a property tour
Touring a rental? This guide helps you know exactly what to look for, from safety features to hidden flaws, so you can confidently sign your lease or keep searching.
Castle, San Diego, CA Local Guide

How much does it cost to rent an apartment in Castle?
| Bedroom | Average Rent | Cheapest Rent | Highest Rent |
|---|---|---|---|
| Castle Studio Apartments | $1,495 | $1,495 | $1,495 |
| Castle 1 Bedroom Apartments | $1,700 | $1,700 | $1,700 |
| Castle 2 Bedroom Apartments | $2,730 | $2,400 | $2,895 |
Browse Apartments in this Neighborhood
There are currently 97 rentals with your search options within a 2 mile radius of the Castle Neighborhood of San Diego, CA.
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Cheapest Available Castle Apartments for Rent
 | Apartment Listing | Model Name | Bed/Bath | Priced From |
|---|---|---|---|
| 3770 42nd Street | 1BR/1.0BA | 1BR,1BA | $1,699 |
| Fairmount Ave Apartments | 1/1 | 1BR,1BA | $1,725 |
Best Value Apartments for Rent in Castle, CA
As of April 30, 2026 the best value apartment in the Castle area is the $3.45 price per square foot 1/1 Model at Fairmount Ave Apartments in the in the Balboa Park neighborhood starting from $1,725. The second greatest value Castle apartment is the 1BR/1.0BA Model at 3770 42nd Street starting at $1,699 with a $4.46 price per square foot in the Balboa Park neighborhood. Here is today’s list of the best values for Castle apartments based on price per square foot:
| Apartment Listing | Model Name | Bed/Bath | Price Per Sq.Ft. |
|---|---|---|---|
| Fairmount Ave Apartments | 1/1 | 1BR,1BA | $3.45 |
| 3770 42nd Street | 1BR/1.0BA | 1BR,1BA | $4.46 |
Expert Rental Resources
The rental experts at ApartmentHomeLiving.com provide you with top advice, tools, and tips for understanding the leasing process and finding the perfect rental. Here are a few helpful rental and leasing articles from our experts to guide you on your search.
Helpful Local Expert Guides

Top 10 Most Affordable Neighborhoods in San Diego: A Local Real Estate Expert Guide
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Articles, How-To's, and Tips

Expert Solutions for Creating the Perfect Work-From-Home Apartment Layouts
Written by: Lauren Harrington
This article is based on first-hand experience managing apartment communities and helping renters adapt to their spaces after moving in.

What Does “Rent Burdened” Mean? How Much Rent Is Too Much
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This article draws from first-hand renter experiences and recurring financial challenges reported after moving in.

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Renting your next home can feel thrilling and overwhelming at the same time.