On January 6, 1912, New Mexico was admitted as the 47th state of the United States after years of political effort, formalized by President Taft’s proclamation declaring statehood complete.

On January 6, 1912, the Territory of New Mexico was officially admitted into the United States as the 47th state, completing decades of political effort and national growth. President William Howard Taft signed the proclamation declaring that New Mexico had fulfilled the requirements set by Congress and was now a full member of the Union.
New Mexico’s journey to statehood was long and complex. The region was first part of Spanish colonial holdings, later became part of Mexico, and eventually became a U.S. territory after the Mexican-American War. For decades, residents sought full representation and equal status with other states. Political debates, social questions, and constitutional requirements slowed progress, but persistent efforts eventually won approval from Congress for statehood.
President Taft’s Proclamation 1175 formalized the admission, declaring that New Mexico had met all the conditions laid out by Congress and was now part of the United States on an equal footing with the other states.
Becoming the 47th state gave New Mexico full representation in Congress and greater control over its own governance. Statehood also marked the transition from a frontier territory to an important part of the growing nation. It allowed New Mexicans to elect their own officials and participate fully in national elections for the first time.
Culturally and geographically diverse, New Mexico blended Native American, Hispanic, and American traditions. Its unique history and identity helped shape its role in the United States and contributed to the rich tapestry of American life.
Shortly after admission, New Mexico began participating fully in the national political process, including sending senators and representatives to Washington and voting in the 1912 presidential election. Statehood marked a significant milestone not only for New Mexicans but also for a nation continuing to expand and define itself in the early 20th century.