What river runs through Castroville?
The Medina River runs through Castroville.
Medina County · Medina River · Alsatian settlement
Where Is Castroville, Texas?
Castroville sits on the Medina River about 25 miles west of San Antonio on U.S. 90. On the Hill Country map it works as a southern-edge reference point: the more rugged Hill Country rises to the north, while Castroville itself occupies the lower Medina valley.
Where is Castroville on the Texas Hill Country map?
Castroville lies farther south than most towns in the game. San Antonio is east. Bandera is north and west. Boerne lies northeast. The Medina River passes directly through town before continuing toward the San Antonio River.
Physically, this is transition country. Medina County is split by the Balcones Escarpment: Hill Country / Edwards Plateau terrain rises in the north, while the county drops toward the lower Rio Grande Plains in the south. Castroville is best understood as a gateway at the southern edge of the broader Hill Country world rather than a deep-interior plateau town.
Henri Castro moved the colony to the river on purpose
The Republic of Texas granted French entrepreneur Henri Castro an empresario contract in 1842. His original grant began west of the Medina River, but Castro wanted his first town on dependable water. He purchased additional land between the grant and the river so he could put the colony where the Medina could support farms and settlement.
On September 2, 1844, Castro left San Antonio with a group of colonists and a small Texas Ranger escort led by John C. Hays. The party selected a level, park-like area shaded by pecans beside a sharp bend in the Medina River. Castroville began there.
This German-speaking settlement was not an Adelsverein town
Castroville is often grouped casually with German Texas, but its migration story is different from Fredericksburg or New Braunfels. Castro recruited heavily in Alsace and nearby parts of the Upper Rhine, and many colonists were Catholic, German-speaking farming families.
More than two thousand settlers eventually entered Texas through Castro’s colonization project. Castroville became the nucleus of that colony, followed by communities including D’Hanis and Quihi. The result is a European cultural landscape with a distinctly Alsatian identity rather than a copy of the Adelsverein settlement system farther north.
The town plan explains the surviving architecture
Castroville was laid out as an agricultural village. Families received compact town lots while working farm plots beyond the built-up center, a pattern familiar in parts of Europe. The town therefore concentrated homes, church life and community activity instead of scattering every family immediately across separate ranches.
Over time the settlers replaced rough pioneer shelters with stone houses and civic buildings. Castroville’s historic district preserves an unusually coherent concentration of nineteenth-century architecture influenced by Alsatian and Central European building traditions.
The Medina River connects Castroville back to the western Hill Country
The river rising far upstream near Medina and Bandera eventually reaches Castroville. On a regional map, that creates a useful hydrologic line from the upper Hill Country toward San Antonio. Castroville is where the same river that organizes Medina and Bandera County history reaches a much broader agricultural valley and an old colonial town.
A European farm village, transplanted
How Castroville was laid out
Castro laid out a European-style agricultural village: families held a compact town lot near the church and square, plus a working farm parcel beyond, above the Medina River fields.
A different colonization story
From Alsace to the Medina River
Henri Castro recruited in Alsace and the Upper Rhine; his colonists crossed the ocean to the Texas coast, moved inland through San Antonio, and settled the Medina River bend at Castroville.
Edge, not center
Castroville at the Hill Country edge
The rugged Hill Country rises in northern Medina County and steps down at the Balcones Escarpment to the Medina valley, where Castroville sits — a southern gateway, not an interior town.
Head to the southern edge
Can you pin Castroville?
Start west of San Antonio on the Medina River, south of the interior Hill Country towns.
Tap or click the map to drop your pin.
Nearby Hill Country towns
The southern-edge cluster, measured from the game’s coordinate data.
- BanderaBandera Co.28.1 mi northwest
- BoerneKendall Co.31.5 mi north
- MedinaBandera Co.37.4 mi northwest
- Center PointKerr Co.41.5 mi north
- ComfortKendall Co.42.2 mi north
- UtopiaUvalde Co.42.6 mi northwest
Approx. straight-line distances, measured from the game's coordinates — not driving distances.
Castroville map questions
Where is Castroville compared with San Antonio?
Castroville is about 25 miles west of San Antonio on U.S. 90.
Why is Castroville called “Little Alsace”?
The town was founded largely by Alsatian immigrant farming families recruited through Henri Castro’s colonization project.
Is Castroville in the Hill Country?
Castroville is best treated as a southern-edge / gateway community. The Hill Country uplands rise in northern Medina County beyond the Balcones transition.