If you are talking about independent states:
There are 20 countries that speak Spanish, and an additional 7 more where Spanish is regularly used, at least in some areas. In many cases, this resulted from the spread of the Spanish empire (1492-1898).
(see related question)
The following 14 countries have Spanish as an official language:
1. Bolivia
2. Colombia
3. Costa Rica
4. Cuba
5. Ecuador
6. El Salvador
8. Guatemala
9. Honduras
10. Panama
11. Paraguay
12. Peru
13. Spain
14. Venezuela
The following 6 countries use Spanish as a national language, but without any official status:
1. Mexico
2. Argentina
3. Chile
5. Nicaragua
6. Uruguay
The following 7 countries commonly use Spanish, at least in some areas, but it has no official or national status:
1. Brazil
2. Philippines
3. Belize
4. Sahrawi Arab Democratic Republic
5. Andorra
6. Gibraltar
7. The United States of America (notably the primary language of Puerto Rico)
Mexico is the Spanish-speaking country closest to the United States.
The only spanish speaking country that borders the United States is Mexico. For states sit along the border: California, Arizona, New Mexico, and Texas.
The United States has the third largest Spanish-speaking population, following Mexico and Colombia. The Spanish-speaking population in the United States has grown significantly due to immigration from Latin American countries.
35.5 million people that speak spanish in the United States of America
California has the largest Spanish-speaking population in the United States, with over 10 million residents who speak Spanish as their primary language.
The 5th largest Spanish speaking country is the United States.
25 is half of 50, so they estimate 50% of the states will have a Spanish speaking majority.
Mexico is the Spanish-speaking country closest to the United States.
The five states in the US with the largest Spanish-speaking populations are California, Texas, Florida, New York, and Arizona. These states have significant Hispanic communities and strong ties to Spanish-speaking culture.
Mexico to United States.
The only spanish speaking country that borders the United States is Mexico. For states sit along the border: California, Arizona, New Mexico, and Texas.
The United States has the third largest Spanish-speaking population, following Mexico and Colombia. The Spanish-speaking population in the United States has grown significantly due to immigration from Latin American countries.
highest spanish-speaking populations in u.s. la ciudad con mayor población en los Estados Unidos
35.5 million people that speak spanish in the United States of America
California has the largest Spanish-speaking population in the United States, with over 10 million residents who speak Spanish as their primary language.
california and florida.
The top Spanish speaking states in the US are the ones close to the US-Mexico border. This includes Texas and Arizona.