DirtlyDirtlyFree fill dirt near San Marcos, Texas is posted by homeowners and contractors on Dirtly's map. As of October 20, 2026 there are no open listings yet and 7 supply yards within 25 miles.
San Marcos is the Hays County seat, halfway along I-35 between Austin and San Antonio, and a college town that has grown into a busy city. Apartment and subdivision work at the fringes of the city, commercial lots along the interstate, and highway rebuilding keep earthwork going, with Kyle to the north and Martindale off to the east.
The edge of the Hill Country runs straight through town, where the San Marcos River rises from springs at the foot of the escarpment. Hillside lots on the west side sit on limestone with little soil over it, and the flat land east of the river is heavy, slow-draining clay. The river bottoms carry sand and gravel.
October brings the fall rains, which can soak the clay as thoroughly as May and stop grading again for days at a time. Pool and hillside work in the Hill Country suburbs picks up as the heat breaks.
Updated October 20, 2026
No pins within 25 miles of San Marcos yet. Be the first to post what you have or need, and nearby crews will find you. 6 supply yards nearby on the map.
Within about 25 miles.
Local supplier: not on Dirtly yet. Shown from public information.
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Drop a pinLocal suppliers shown from public information. Not Dirtly members, and not listings.
Not on Dirtly. Shown from public information. What each site takes and charges changes, so call ahead before you load the truck.
Town and county yards that hand material out. What they have is in their own words.
Not on Dirtly. Shown from public information. What each site takes and charges changes, so call ahead before you load the truck.
The calculator turns your length, width, and depth into a rough cubic-yard number, and reminds you to add a little for settling.
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