Analysis of information sources in references of the Wikipedia article "西班牙语国家和地区列表" in Chinese language version.
The main nuclei of Spanish speech in the United States are northern New Mexico / southern Colorado, the border territories from California through Texas, the Florida peninsula, New York City, and other large cities of the Northeast and Midwest. Only one of these, the New Mexico / Colorado dialect area, has maintained linguistic continuity since colonial days, and its speech goes back to about 1600.
