What present day states that were once a part of the Texas territory?

The present-day states that were once a part of the Texas territory include:

- Texas: The majority of the former Texas territory is now the state of Texas.

- Oklahoma: The Panhandle region of Oklahoma was part of the Texas territory.

- Kansas: The southwestern corner of Kansas was also part of the Texas territory.

- Colorado: A small portion of southeastern Colorado was part of the Texas territory.

- New Mexico: The eastern part of New Mexico was once part of the Texas territory.

- Wyoming: A small portion of southeastern Wyoming was part of the Texas territory.