Saint Petersburg, United States

Count 10 people in Saint Petersburg in 1985 and the same count gives 60.8 in 2025.

On the UN's projection it will have 1.2 million people in 2050. On the UN's projection it passes a million people between 2030 and 2035. 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: one column every five years, 1975 to 2050; its height is the number of people. Hatched columns are the UN's projection. The thin strip beneath says how sure the UN is of each figure: the stronger the colour, the surer. A blank means the place was not on the UN's list of cities that year.

How to read this: Saint Petersburg is the dot in colour with a ring around it. The grey dots are the other cities of the United States in 2025, 348 in all, led by New York City, each drawn with an area that matches its people. Countries next door are outlines only.

In 2025, Saint Petersburg covered 571 km², and buildings, roads and other built-up land covered 137 km² of it. That is 156 m² of built-up land for each person, about a square 12 by 12 metres. Since 1985, its built-up land has grown to 5 times its size, and its people are 6.1 times as many.

How to read this: the outer pale square stands for all the land the city covers, and the solid square inside it for the part with buildings, roads and the like on it. All three squares share a scale, so you can compare them by eye. A hatched one is a year the UN has projected.

Of every 1,000 people in the United States in 2025, 3 lived in Saint Petersburg, which is 877,183 people.

How to read this: shrink the United States to 1,000 people and this is what you get. The coloured squares are the ones who would live in Saint Petersburg; the grey ones are everybody else, in other cities, in towns and out in the country.

In the world, 2025

1. 591 Voronezh Russia879,892
2. 592 Adelaide Australia879,249
3. 593 Sembawang Singapore878,551
4. 594 Firozabad India878,282
5. 595 Saint Petersburg877,183
6. 596 Chenghai China875,988
7. 597 Oslo Norway874,991
8. 598 Al Ain United Arab Emirates873,839
9. 599 Hengyang China873,169

In the United States, 2025

1. 364 Portland1,397,788
2. 370 Fort Lauderdale1,368,027
3. 451 Baltimore1,145,219
4. 466 Minneapolis [Saint Paul]1,107,243
5. 595 Saint Petersburg877,183
6. 653 Detroit809,894
7. 732 Columbus731,335
8. 764 Milwaukee701,928
9. 785 Fresno685,330

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.

United States · All the world's cities

The figures for Saint Petersburg 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 Saint Petersburg 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