Looking for storage units in San Marcos, Texas? Browse and compare 25 self-storage facilities side by side. 5x5 units start at $20/month. 8 of them publish a monthly rate and unit sizes, so you can compare those without ringing round.

San Marcos storage options range from small 5x5 lockers to large 10x30 drive-up units, on flexible month-to-month terms. 13 facilities offer climate-controlled storage to protect furniture, electronics, and documents from heat and humidity. 13 offer drive-up access for loading straight from your vehicle. 2 provide 24-hour access. 14 have vehicle, RV, or boat storage. Compare amenities and prices below to find the right unit in San Marcos.

San Marcos storage prices by unit size

Averages from real units listed across San Marcos, TX facilities, in US dollars. 52% of them mention climate-controlled units on their own website.

Size	Typical use	Median / mo	Average	Range	Units
5×5	Closet-sized	$28	$40	$20 – $75	7
5×10	Studio / small bedroom	$55	$57	$33 – $88	19
5×15	Studio / 1-bedroom	$70	$73	$50 – $120	8
10×10	1-bedroom apartment	$79	$88	$56 – $165	11
10×15	Large 1-bed / small 2-bed	$106	$110	$64 – $210	14
10×20	2–3 bedroom home	$143	$138	$81 – $209	20
10×25	3-bedroom home	$197	$216	$165 – $287	8
10×30	4–5 bedroom home	$215	$232	$164 – $320	10
12×30	Vehicle or 4–5 bedroom home	$392	$343	$245 – $392	3thin

Not sure which size you need? See the unit size guide or compare with the Texas pricing overview.

Things you'll need

Disc lock

Required by most facilities

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Storage bins

Better than cardboard for long-term

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Shoulder Dolly

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Self Storage in San Marcos — Common Questions

How much does self storage cost in San Marcos, TX?

The cheapest 5x5 unit published in San Marcos is $20/month. Prices rise with unit size, and operators charge more for a climate-controlled unit than a standard one. 8 of the 25 facilities we list in San Marcos publish a rate you can compare, and the rest we ring for you.

How many self storage facilities are in San Marcos?

There are 25 self storage facilities in San Marcos, Texas listed on StorageAtlas, including national chains and local operators. 8 of them publish a monthly rate; every listing carries the address, amenities and contact details we hold.

What size storage unit do I need in San Marcos?

A 5×5 unit (25 sq ft) holds a few boxes or seasonal items. A 10×10 (100 sq ft) fits a 1-bedroom apartment. A 10×20 (200 sq ft) suits a full 2–3 bedroom home. Most people over-estimate — stacking boxes and taking furniture apart usually lets a smaller unit do the job. Go a size up only if you have large items that cannot be dismantled, like an appliance or a sofa bed.

Are there climate-controlled storage units in San Marcos?

Yes — 13 of the 25 storage facilities in San Marcos offer climate-controlled units. Climate control keeps temperatures stable year-round and is recommended for wood furniture, electronics, documents, artwork, and anything sensitive to heat or humidity.