* Mexico: With over 126 million speakers, Mexico has the largest Spanish-speaking population in the world.
* Colombia: Over 50 million speakers.
* Spain: Approximately 47 million speakers.
* Argentina: Over 44 million speakers.
* United States: Over 41 million speakers, making it the second largest Spanish-speaking country in the world after Mexico.
* Peru: Over 32 million speakers.
* Chile: Over 18 million speakers.
* Venezuela: Over 28 million speakers.
* Ecuador: Over 17 million speakers.
* Guatemala: Over 16 million speakers.
* Dominican Republic: Over 11 million speakers.
* Cuba: Over 11 million speakers.
* Honduras: Over 9 million speakers.
* Bolivia: Over 11 million speakers.
* Paraguay: Over 7 million speakers.
* Nicaragua: Over 6 million speakers.
* El Salvador: Over 6 million speakers.
* Puerto Rico: Over 3.5 million speakers.
* Panama: Over 4 million speakers.
* Costa Rica: Over 5 million speakers.
This list is based on the number of native speakers and may not include those who speak Spanish as a second language. It's also worth noting that the demographics of Spanish speakers are constantly evolving.