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San Luis Potosí, 
Mexico
992,648 people lived in San Luis Potosí in 2025. It is the 517th largest of the world's 12,138 cities, and the 10th largest in Mexico.
Like every city on this site, San Luis Potosí is counted as a built-up area seen from above rather than as a city government's territory. Why that changes the number.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How San Luis Potosí grew
Count 10 people in San Luis Potosí in 1975 and the same count gives 24.3 in 2025.
On the UN's projection it will have 1.1 million people in 2050. It passed a million people between 2010 and 2015.
projected (after 2025) · how sure the UN is: high moderate low
How to read this: each column is one of the UN's five-yearly estimates, 1975 through 2050, and taller means more people. Where a column is hatched the year has not happened yet. The strip under the columns is the UN's own confidence in each figure, palest where it is least sure; where it is blank the city was not on the list at all.
People · your family's years · 1975 to 2050
San Luis Potosí through your family’s years
Put in the years your family were born. You’ll see how many people lived in San Luis Potosí in each of those years, and when each of them turned 30.
Mexico · every city · 2025
Where it is
How to read this: San Luis Potosí is the dot in colour with a ring around it. The grey dots are the other cities of Mexico in 2025, 186 in all, led by Mexico City, each drawn with an area that matches its people. Countries next door are outlines only.
Area and built-up land · km²
How much land it covers
In 2025, San Luis Potosí covered 145 km², and buildings, roads and other built-up land covered 49 km² of it. That is 49 m² of built-up land for each person, about a square 7 by 7 metres. Since 1975, its built-up land has grown to 2.4 times its size, and its people are 2.4 times as many.
How to read this: pale is the whole of the city's land; the stronger square inside it is what is actually built on. The three are drawn to the same scale, so a larger square really is more land, and hatching means the year is the UN's projection rather than a count.
Of every 100 people in Mexico
Its share of Mexico
Of every 1,000 people in Mexico in 2025, 8 lived in San Luis Potosí, which is 992,648 people.
How to read this: 1,000 squares, one for every 1,000th person in Mexico; the coloured squares live in San Luis Potosí. The grey rest live in other cities, in towns or in the countryside.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 513 Puducherry India998,290
- 514 Mataram Indonesia997,132
- 515 Nara Japan993,952
- 516 Mangaluru India993,566
- 517 San Luis Potosí992,648
- 518 Shiyan China992,165
- 519 Gaya India991,081
- 520 Shunqing China990,466
- 521 Porto Portugal990,433
In Mexico, 2025
- 335 Toluca1,505,035
- 371 León1,367,521
- 417 Torreón1,227,850
- 425 Ciudad Juárez1,212,370
- 517 San Luis Potosí992,648
- 590 Querétaro880,361
- 611 Aguascalientes856,387
- 618 Mérida847,166
- 625 Cuernavaca839,485
How to read this: names are in order of size, the leading number being each city's rank among all 12,138 in 2025; the bars share a scale within a list. A jump in the ranks means a city under 300,000 people, which is not given a page here.
Apparatus
Sources and method
The figures for San Luis Potosí are the UN's own, at five-year steps: an estimate for each of 1975 to 2025, then projection to 2050. Projected years are drawn hatched, and the UN publishes no range of uncertainty for a city. What a city means here, how the UN measures one, and why that number can differ from the one San Luis Potosí publishes about itself: how the figures here are put together.
Sources: UN WUP 2025 · Natural Earth · flag-icons. Every source, its licence and how to cite it →
Verified 2026-09-30 · 73 canaries