Alamosa County is located in the San Luis Valley of south-central Colorado. The county seat is Alamosa.

The county was created in 1913 from parts of Conejos and Costilla counties. It was named for the Spanish word for a grove of cottonwood trees.

Alamosa County is governed by a three-member Board of County Commissioners. The county is part of the San Luis Valley Regional Council of Governments.

The county is home to the Great Sand Dunes National Park and Preserve, the Rio Grande National Forest, and the San Luis Valley National Wildlife Refuge. The county is also home to the Alamosa National Wildlife Refuge, the San Luis Valley State Park, and the Zapata Falls Recreation Area.

The county's economy is largely based on agriculture, tourism, and government services. Major agricultural products include potatoes, hay, and wheat. The county is also home to several large employers, including the San Luis Valley Regional Medical Center, Adams State University, and the San Luis Valley Federal Bank.

For the most up-to-date and in-depth information, please check the public records links below.