Chongqing covers more land than Switzerland. Sydney's administrative limits are larger than the Greater London urban area. And Monaco fits inside London's Hyde Park nearly twice over. Most people's mental map of “how big is this city” is wrong by an order of magnitude — because we conflate city (a legal boundary) with metro area (where people actually live and commute), and because we have no honest way to compare places half a world apart.
This guide walks through all 97 cities currently in the City Map Compare database, ranked strictly by their administrative city area— the official municipal boundaries used by their respective governments. We'll look at the 10 largest, the 10 smallest, the densest and most spread-out, a few comparisons that still surprise people, and exactly what “city area” does and doesn't measure.
The 10 largest cities by administrative area
Administrative area is what a city's government officially controls — the lines on the legal map. It's not the same as where people live, work, or commute (that's the metropolitan area, often many times larger). When city governments draw expansive boundaries, you get entries like Chongqing, where the “city” is really an entire province-sized administrative region.
| # | City | Country | Area (km²) | Area (mi²) | Population (M) |
|---|---|---|---|---|---|
| 1 | Chennai | India | 426,830,040 | 164,799,932 | 6.6 |
| 2 | Doha | Qatar | 132,000,000 | 50,965,464 | 1.2 |
| 3 | Dublin | Ireland | 114,990,000 | 44,397,869 | 0.6 |
| 4 | Hangzhou | People's Republic of China | 16,854 | 6,507 | 11.9 |
| 5 | Beijing | China | 16,411 | 6,336 | 21.5 |
| 6 | Brisbane | Australia | 15,826 | 6,110 | 2.7 |
| 7 | Chengdu | People's Republic of China | 14,378 | 5,551 | 20.9 |
| 8 | Sydney | Australia | 12,368 | 4,775 | 5.3 |
| 9 | Xi'an | People's Republic of China | 10,097 | 3,898 | 12.9 |
| 10 | Melbourne | Australia | 9,993 | 3,858 | 5.1 |
The pattern: Chinese cities dominate the top end, not because they have more people but because Chinese administrative cityboundaries often encompass surrounding rural counties. Hangzhou, Beijing, Chengdu, and Wuhan all rank in the global top 20 by administrative area while their core urban footprints are much more conventional. Sydney makes the list as Australian “cities” are similarly broad. By contrast, the United States' largest entry — Houston — sits at a relatively modest ~1,737 km².
The 10 smallest cities by administrative area
At the other end of the scale: city-states, ancient walled cities, and tightly-bounded historical cores. Paris is the textbook example — only 105 km² in the city proper, while Île-de-France (the metro region) sprawls over 12,000 km². When you compare Paris and Houston directly, you're comparing legal artifacts, not lived urban experience.
| # | City | Country | Area (km²) | Area (mi²) | Population (M) |
|---|---|---|---|---|---|
| 1 | Athens | Greece | 39 | 15 | 0.6 |
| 2 | Manila | Philippines | 43 | 17 | 1.9 |
| 3 | Tel Aviv | Israel | 52 | 20 | 0.5 |
| 4 | Zurich | Switzerland | 88 | 34 | 0.4 |
| 5 | Copenhagen | Denmark | 91 | 35 | 0.7 |
| 6 | Lisbon | Portugal | 100 | 39 | 0.6 |
| 7 | Barcelona | Spain | 101 | 39 | 1.7 |
| 8 | Paris | France | 105 | 41 | 2.2 |
| 9 | Vancouver | Canada | 115 | 44 | 0.7 |
| 10 | San Francisco | USA | 121 | 47 | 0.9 |
Reality-check comparisons
The most useful thing about laying these numbers side by side isn't the rankings — it's the comparisons. A few that consistently catch people off guard:
- Houston (1,737 km²) is bigger than Paris, Athens, Madrid, and Lisbon combined. Three of those are national capitals. See Houston vs. Paris →
- Tokyo's administrative city area (2,194 km²) is twice the size of Hong Kong (1,114 km²) and triple Singapore (728 km²) combined. Yet all three feel like dense Asian megacities — because for residents, the relevant unit is the metro, not the legal city. Tokyo vs. Hong Kong →
- Phoenix (1,340 km²) is larger than every European capital in our database except Moscow. The American sprawl model is a real geographic phenomenon, not just a metaphor. Phoenix vs. Barcelona →
- Hangzhou's 16,853 km² of administrative area is larger than Connecticut. Chongqing exceeds 80,000 km² — larger than Austria. These are technically cities only because their governments say so.
- Manhattan (~59 km²) fits inside London's administrative area roughly 27 times. Inside Tokyo, around 37 times. The NYC borough we tend to anchor on is unusually small even by first-world city standards. London vs. New York →
The densest and most spread-out cities
Density (people per km²) is where the “administrative boundary” caveat bites hardest. A city-state like Singapore packs 7-8,000 people per km² across its entire legal territory, while Houston averages around 1,300 — but if you cropped Houston to just its core downtown the density would be much higher, and if you took Singapore's downtown blocks alone it would be denser still. These rankings reflect the legal city, with all the apples-to-oranges problems that implies.
What this data does and doesn't measure
Every number in this article comes from official municipal boundaries cross-checked against Wikidata and OpenStreetMap. That's a real choice with consequences:
- It captures legal jurisdiction, which is the right unit if you're asking about taxation, governance, planning authority, or census reporting.
- It does not capture lived urban experience.If you want to know “how big a city feels” — how long a commute takes, where you can find work, what counts as “the suburbs” — metropolitan area is the better measure. We track that separately for cities where it's well-defined; you'll find it on each city's detail page.
- It penalizes city-states and Asian megacities differently. Singapore (728 km²) and Chongqing (82,400 km²) sit at opposite extremes not because they're different in nature, but because their administrative definitions are. There's no universally fair comparison.
The honest move is to acknowledge what each number represents and to make the comparison visual when possible — which is exactly what the side-by-side map tool was built for.
Explore further
Pick any two cities and see them at the same scale on synchronized maps: jump to the comparison tool. Or browse all 97 cities with their full data. Some popular starting points:
- Tokyo vs. New York — the canonical East-meets-West city comparison
- London vs. Paris — same metro era, very different city sizes
- Houston vs. London — the sprawl-vs-density extreme that still surprises people
- Shanghai vs. Los Angeles — both Pacific megacities, very different footprints