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Extra Space Storage - 1620 South Interstate 35, San Marcos, TX 78666

Self Storage, Car Storage, RV Storage 25 - 1,276 Sq. Ft.
4.9/5 - 604 Reviews
Location:
1620 South Interstate 35, San Marcos, TX 78666
All units
Small
Medium
Large
Parking
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Units Availability
Small Storage Unit
7x10
Self Storage
70 Sq. Ft.
$67/mo
Small Storage Unit
6x10
Self Storage
60 Sq. Ft.
Climate-Controlled
$62/mo
Small Storage Unit
5x15
Self Storage
75 Sq. Ft.
Climate-Controlled
$81/mo
Small Storage Unit
5x12
Self Storage
60 Sq. Ft.
$61/mo
Small Storage Unit
5x10
Self Storage
50 Sq. Ft.
Climate-Controlled
$55/mo
Small Storage Unit
5x10
Self Storage
50 Sq. Ft.
$53/mo
Small Storage Unit
5x7
Self Storage
35 Sq. Ft.
Climate-Controlled
$45/mo
Small Storage Unit
5x7
Self Storage
35 Sq. Ft.
$43/mo
Small Storage Unit
5x5
Self Storage
25 Sq. Ft.
Climate-Controlled
$36/mo
Small Storage Unit
5x5
Self Storage
25 Sq. Ft.
$35/mo
Medium Storage Unit
12x15
Self Storage
180 Sq. Ft.
Climate-Controlled
$173/mo
Medium Storage Unit
10x15
Self Storage
150 Sq. Ft.
Climate-Controlled
$147/mo
Medium Storage Unit
10x15
Self Storage
150 Sq. Ft.
$123/mo
Medium Storage Unit
10x12
Self Storage
120 Sq. Ft.
Climate-Controlled
$123/mo
Medium Storage Unit
10x12
Self Storage
120 Sq. Ft.
$99/mo
Medium Storage Unit
10x10
Self Storage
100 Sq. Ft.
Climate-Controlled
$107/mo
Medium Storage Unit
10x10
Self Storage
100 Sq. Ft.
$82/mo
Medium Storage Unit
7x20
Self Storage
140 Sq. Ft.
Climate-Controlled
$137/mo
Medium Storage Unit
7x20
Self Storage
140 Sq. Ft.
$115/mo
Medium Storage Unit
7x15
Self Storage
105 Sq. Ft.
Climate-Controlled
$113/mo
Medium Storage Unit
7x15
Self Storage
105 Sq. Ft.
$86/mo
Large Storage Unit
22x58
Parking
1,276 Sq. Ft.
Drive-up Access
Parking
RV Storage
$678/mo
Large Storage Unit
16x32
Parking
512 Sq. Ft.
Drive-up Access
Parking
RV Storage
$366/mo
Large Storage Unit
15x25
Parking
375 Sq. Ft.
Drive-up Access
Parking
RV Storage
$294/mo
Large Storage Unit
15x20
Self Storage
300 Sq. Ft.
Climate-Controlled
$284/mo
Large Storage Unit
15x20
Parking
300 Sq. Ft.
Drive-up Access
Parking
RV Storage
$252/mo
Large Storage Unit
15x15
Self Storage
225 Sq. Ft.
$187/mo
Large Storage Unit
12x66
Parking
792 Sq. Ft.
Drive-up Access
Parking
RV Storage
$479/mo
Large Storage Unit
12x62
Parking
744 Sq. Ft.
Drive-up Access
Parking
RV Storage
$465/mo
Large Storage Unit
12x47
Parking
564 Sq. Ft.
Drive-up Access
Parking
RV Storage
$389/mo
Large Storage Unit
12x32
Parking
384 Sq. Ft.
Drive-up Access
Parking
RV Storage
$298/mo
Large Storage Unit
12x22
Parking
264 Sq. Ft.
Drive-up Access
Parking
RV Storage
$223/mo
Large Storage Unit
12x20
Self Storage
240 Sq. Ft.
Climate-Controlled
$243/mo
Large Storage Unit
10x50
Parking
500 Sq. Ft.
Parking
RV Storage
$126/mo
Large Storage Unit
10x35
Parking
350 Sq. Ft.
Drive-up Access
Parking
RV Storage
$280/mo
Large Storage Unit
10x30
Parking
300 Sq. Ft.
Parking
RV Storage
$88 - $252/mo
Large Storage Unit
10x28
Self Storage
280 Sq. Ft.
Climate-Controlled
$271/mo
Large Storage Unit
10x25
Self Storage
250 Sq. Ft.
Climate-Controlled
$251/mo
Large Storage Unit
10x25
Parking
250 Sq. Ft.
Parking
RV Storage
$78 - $208/mo
Large Storage Unit
10x20
Self Storage
200 Sq. Ft.
Climate-Controlled
$198/mo
Large Storage Unit
10x20
Parking
200 Sq. Ft.
Car Storage
Parking
$64 - $167/mo

Amenities

  • Climate-Controlled
  • Indoor
  • Drive-Up Access
  • Retail Available
  • Onsite Manager
  • Truck Rentals
  • Contactless Renting
  • Security Camera
  • Gate
  • Parking
  • Credit Cards Accepted
  • Keyless Unit Access
  • Online Payment
  • RV Storage

What customers are saying

4.9/5 - 604 Reviews

Read some helpful reviews of Extra Space Storage at 1620 South Interstate 35, shared by real renters with genuine experiences and honest opinions.

They lure you in with a “special price,” but after just three months, the rent jumped up by $45 — and then only two months later, it went up another $35! The prices are ridiculous for such a small unit. To make it worse, there were no rent increase notices, no emails, no text messages — nothing. You will only see the higher charge appear on your bank statement. Totally unprofessional and unfair. ... Read more
April H. - 8 October 2025
First, I have rented from life storage ( acquired by extra space ) for 9 years at 3 locations now. The quality is as best as you can expect from a storage vendor, especially the climate controlled units. I want to take a minute to acknowledge an Extra Space employee in San Marco's, TX. Her name is Hilda; she is a manager overseeing multiple San Marcos Extra Space properties ( I believe). Hilda went above and beyond to help me secure a specific sized unit which allows me to consolidate a.couple storage units and not break the bank. My timing was tight. Hilda put me on a watch list and called me several times to put me at ease to know the One single unit coming available which would meet my needs was mine for the asking once the former leasee moved out end of Aug. I had contacted several properties, competing companies. Hilda is a thoughtful problem solver committed to securing a tenant in the space they need. Hilda called me on Labor Day to tell me the unit I requested was available for move in. I think she deserves double time for working the holiday and taking care of customers. ... Read more
Paul S. - 5 September 2025
I just purchased a storage unit at Extra Space Storage in San Marcos and they were very helpful and kind. Hilda was very down to earth, and welcoming, and provided me with all the information I needed to obtain a storage unit. I loved my experience here, and I highly recommend getting your storage unit here. The service was excellent! ... Read more
Madi - 4 September 2025
Evan F. - 16 August 2025
The employees- ladies there were so helpful. One lady saw me with my truck hood up and offered me help- that was above and beyond! They explained very clearly the path to my friend's storage and gave us cold water! Super nice! Great customer service. ... Read more
Susana A. - 3 May 2025
Ron S. - 29 March 2025
This place is great! The ladies working were so eager to help and were very kind. They are willing to work with you and help you get the best prices for what you need. They were full of advice and were understanding. Fantastic customer service! ... Read more
Abigail I. - 20 March 2025
I came if price quotes for my daughter and was greeted by Hilda Balli and Kelley. They both were so professional and very very kind. I am definitely going to come back as well refer others at my job and Church. Thank you so much ladies for your kind hard work and your dedication for Excellent Customer Service!!!! ?? ... Read more
Dee “. - 11 March 2025
Ryan B. - 14 February 2025
Hilda was awesome! Great experience. Very polite and helpful! Renting a unit was fast and efficient. I rented in a hurry and was fighting traffic to get there before they closed. They agreed to stay a little past closing to help me because the contract was not showing up in my email and I needed a unit that night. Luckily I made just before they closed and didn't need to inconvenience them. ... Read more
Bran F. - 4 December 2024

Overview

Located at 1620 South Interstate 35 in San Marcos, TX, this Extra Space Storage facility offers a variety of small, medium, and large units, making it ideal for storing everything from seasonal items to full household contents. With climate-controlled units, your belongings will stay protected against the humid Texas heat, ensuring sensitive items like electronics or furniture remain in excellent condition.

This facility is thoughtfully designed with drive-up access, indoor storage options, and keyless unit access, providing both convenience and security. Whether you're storing a vehicle in the parking area or taking advantage of their RV storage, this location accommodates a wide range of storage needs. The facility also emphasizes safety, with features like security cameras, gated entry, and an onsite manager for added peace of mind.

For those in transition, this Extra Space Storage site offers contactless renting, online payment, and even truck rentals to simplify your move. Need supplies? Retail items for packing and moving are available on-site. This facility is perfect for residents, students, or businesses in San Marcos looking for convenient, secure, and flexible storage solutions.

Nearby Storage Units

Storage units in nearby cities

Want to see how San Marcos, TX, compares to other places? There are plenty of great options nearby. Kyle, TX, 12 miles away, has 5 self storage facilities with rents starting from $53/month. Or you could drive to New Braunfels, TX, just 15 miles distant to find other options, where the cheapest units in the 35 facilities there can be rented for $26/month. In Wimberley, TX, just 16 miles away, there are 2 facilities available, offering rents as low as $80/month. Further out, Buda, TX (16 miles away), and Canyon Lake, TX (17 miles away), have 7 and 14 facilities, with minimum rents of $21 and $25, respectively.

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Check out storage units in trending cities

Still looking for the ideal storage unit? For more great self storage options you wouldn't have to cross the state border: units can be leased in Houston, TX and San Antonio, TX, starting from $7 and $10, respectively. Even more storage is available and with low starting rents, in Dallas, TX ($5), Austin, TX ($10) and Fort Worth, TX ($10).

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Frequently Asked Questions

There is a wide array of amenities available for the storage units that Extra Space Storage - 1620 South Interstate 35 has to offer. These amenities include Climate-Controlled, Indoor, Drive-Up Access, Retail Available, Onsite Manager, Truck Rentals, Contactless Renting, Security Camera, Gate, Parking, Credit Cards Accepted, Keyless Unit Access, Online Payment and RV Storage. Most of these amenities can prove to be very useful depending on what you need to store. For example, climate-controlled units can come in handy for keeping sensitive items, drive-up access can make your loading and unloading process easier, and extra security measures will ensure your items are kept safe at all times.

The storage units offered by Extra Space Storage - 1620 South Interstate 35 can satisfy all of your storage needs. Different sizes here range from 25 to 1,276 square feet. You can go for smaller units if you don't have a lot of items to store, while choosing a larger space is recommended in case you need to store a lot of furniture, bigger items or even vehicles.

The unit size that you should choose obviously depends on how much stuff you need to store. On the one hand, you should think of smaller units (5'x5' or 5'x10') as closets – they can be used to store chairs, lamps, moving boxes and sports equipment, along with smaller pieces of furniture, books and documents.

On the other hand, the 10'x10' and 10'x15' spaces are good for storing larger items of furniture, bicycles and a larger number of possessions. If you need even more space, then 10'x20' and 10'x30' units can easily accommodate the contents of an entire 3- or 4-bedroom house.

Storage units offered by Extra Space Storage - 1620 South Interstate 35 come at a variety of prices, starting from $35 per month for typically smaller units. However, larger spaces can set you back up to $678 a month.

We know that when it comes to self storage, there is nothing more important than quickness and accessibility. Drive-up access is an extremely convenient amenity, as you can park your vehicle right next to your unit, making it significantly easier to load and unload the items you will use storage for. However, drive-up storage units tend to be outdoors, so you might consider indoor storage spaces with climate control if you're looking to keep temperature-sensitive items in peak condition.

Yes, you might, depending on what you need to put in storage. Climate-controlled spaces keep temperatures and humidity levels consistent all the time, which means they are perfect for storing sensitive items. Seeing that a whole host of things can be damaged by varying temperatures and excessive moisture, many people choose to rent climate-controlled units for personal items such as documents, photographs, paintings, collectibles, electronics, wooden furniture, antiques and even vehicles. If you're looking to store such items that are valuable to you, consider renting a climate-controlled unit!