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Reynosa, 
Mexico
615,168 people lived in Reynosa in 2025. It is the 877th largest of the world's 12,138 cities, and the 24th largest in Mexico.
Like every city on this site, Reynosa 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 Reynosa grew
For every 10 people in Reynosa in 1985, there were 35 in 2025.
On the UN's projection it will have 685,517 people in 2050. It passed 250,000 people between 1985 and 1990. The UN first counts it as a city in 1985, when it passed 50,000 people.
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
Reynosa through your family’s years
Put in the years your family were born. You’ll see how many people lived in Reynosa in each of those years, and when each of them turned 30.
Mexico · every city · 2025
Where it is
How to read this: Mexico and its 186 cities in 2025, each a dot whose area is its number of people (the largest is Mexico City). Reynosa is ringed, in colour; the other cities are grey. Neighbouring countries are outlines.
Area and built-up land · km²
How much land it covers
In 2025, Reynosa covered 149 km², and buildings, roads and other built-up land covered 39 km² of it. That is 63 m² of built-up land for each person, about a square 8 by 8 metres. Since 1985, its built-up land has grown to 3 times its size, and its people are 3.5 times as many.
How to read this: each pale square is the city's whole area, the strong square inside it the part that is built on; one scale for all three, so a bigger square is more land. Hatched is the UN's projection.
Of every 100 people in Mexico
Its share of Mexico
Of every 1,000 people in Mexico in 2025, 5 lived in Reynosa, which is 615,168 people.
How to read this: 1,000 squares stand for everyone in Mexico, one square for every 1,000th person. Count the coloured ones and you have Reynosa's share; the grey remainder live somewhere else in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 873 West Palm Beach United States617,035
- 874 Farrukhabad India615,831
- 875 Bristol United Kingdom615,703
- 876 Ambala India615,565
- 877 Reynosa615,168
- 878 Ribeirao Preto Brazil615,090
- 879 Mar del Plata Argentina614,979
- 880 Lipa Philippines614,898
- 881 Salta Argentina613,956
In Mexico, 2025
- 768 Acapulco699,888
- 811 Veracruz668,350
- 845 Cancún637,532
- 847 Morelia637,430
- 877 Reynosa615,168
- 901 Tampico603,035
- 947 Tuxtla Gutiérrez580,878
- 1018 Xalapa542,213
- 1019 Durango541,787
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 Reynosa are the UN's own, at five-year steps: an estimate for each of 1985 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 Reynosa 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