Region 11 Guadalupe Flood Planning Region

The Guadalupe River and its contributing creeks and streams flow from the Texas Hill Country as far west as Kerr County on its way to San Antonio Bay. The Comal, Blanco and San Marcos Rivers all feed the Guadalupe along this region. The adjacent San Antonio River flows into the Guadalupe just before it enters San Antonio Bay and the Gulf of Mexico. This region is home to five major lakes and reservoirs and crosses five diverse ecoregions.

For a detailed map of Region 1, please visit the Texas Geographic Information Office (TxGIO) Flood Planning Regions Map Collection.

Go to Region 11 Guadalupe RFPG External Host Website

Population Estimate (2019): 621,166

Approximate Area: 6,030 square miles

Approximate Stream Miles: 5,531

Approximate NFIP Claims (1975-2019): $249,600,821

Counties Represented:

• Bandera*
• Bastrop*
• Blanco*
• Caldwell*
• Calhoun*
• Comal*
• De Witt*
• Fayette*
• Gillespie*
• Goliad*
• Gonzales*
• Guadalupe*
• Hays*
• Karnes*
• Kendall*
• Kerr*
• Lavaca*
• Real*
• Refugio*
• Travis*
• Victoria*
• Wilson*

*indicates this county is partially within this RFPG and is also represented by at least one other RFPG

Major Cities (Population greater than 25,000):

• Canyon Lake
• Cibolo*
• Kyle
• New Braunfels*
• San Marcos
• Schertz*
• Seguin
• Victoria*

*indicates this city is partially within this RFPG and is also represented by at least one other RFPG

Major Lakes & Reservoirs:

• Canyon Lake
• Coleto Creek
• Lake Dunlap
• Lake Gonzales (H-4)
• Lake McQueeney

Ecoregions of Texas Represented:

• Blackland Prairie
• Edwards Plateau
• Gulf Prairies
• Post Oak Savanah
• South Texas Plains