Paris arrondissements explained: the 20-district spiral

The logic behind the numbers

Paris is carved into 20 administrative districts called arrondissements, and once the pattern clicks, the whole city becomes easier to read. The numbering does not run left to right or north to south. It spirals: the 1st arrondissement sits at the centre, around the Louvre and the Tuileries, and the sequence winds outward clockwise from there, like the shell of a snail, all the way out to the 20th at the eastern edge of the city.

This is not folklore. The 20-arrondissement system was fixed when Paris annexed a ring of surrounding villages and redrew its administrative map in the nineteenth century, and the boundaries have stayed largely the same since. Every arrondissement is its own small administrative unit with its own town hall (mairie), but for a visitor the number mostly matters as a way to orient yourself: which side of the Seine you’re on, how close to the centre you are, and which named neighbourhood you’re actually standing in.

Reading a Paris postcode

Every Paris postcode follows the same formula: 750, then the two-digit number of the arrondissement. The 1st arrondissement is 75001. The 8th, home to the Champs-Elysees and the Opera district, is 75008. The 18th, where Montmartre sits, is 75018. If you see an address ending in 75004, you already know it’s in the 4th arrondissement without checking a map.

This matters in practice more than it sounds. Hotel listings, restaurant addresses and event pages almost always give the postcode rather than a neighbourhood name, so being able to translate 75003 into “3rd arrondissement, roughly Le Marais” on sight saves a lot of back-and-forth with a map app.

Postcode	Arrondissement	What’s there
75001	1st	Louvre and Tuileries
75003 / 75004	3rd and 4th	Le Marais, Ile de la Cite and Notre-Dame
75005 / 75006	5th and 6th	Latin Quarter and Saint-Germain
75007	7th	Eiffel Tower and Trocadero side (south bank)
75008	8th	Champs-Elysees and Opera
75018	18th	Montmartre

Tracing the spiral, ring by ring

Start at the 1st arrondissement, wrapped around the Louvre. The spiral then works through the 2nd (the old financial and garment district), the 3rd and 4th (which together cover Le Marais and the Ile de la Cite, where Notre-Dame stands), before crossing to the Rive Gauche for the 5th and 6th — the Latin Quarter and Saint-Germain-des-Pres.

From there the sequence swings back across the river for the 7th, home to the Eiffel Tower and the Ecole Militaire, then the 8th around the Champs-Elysees and the Palais Garnier opera house. The 9th through 12th continue the outward turn across the northern and eastern parts of the city, and the 13th through 15th carry it along the southern edge back toward the river. The spiral closes out with the 16th (facing the Eiffel Tower from the Trocadero side), the 17th, the 18th (Montmartre and Sacre-Coeur), the 19th and finally the 20th at the eastern edge of the city, near Pere-Lachaise.

It helps to stop thinking of the numbers as a ranking and start thinking of them as coordinates. A low number tells you that you’re near the geographic centre of Paris. It says nothing about how lively, quiet, expensive or residential a street feels — those qualities vary block by block inside every arrondissement, low-numbered or high.

Rive Droite and Rive Gauche: the other map

Layered on top of the 20 arrondissements is an older, simpler split: the Seine itself. Everything north of the river is the Rive Droite, the Right Bank. Everything south of it is the Rive Gauche, the Left Bank. Parisians use this distinction constantly, often more than the arrondissement number, because it carries a real sense of character.

The Rive Droite holds the Louvre, the Champs-Elysees, the Opera district, Le Marais and Montmartre — grand boulevards, department stores, and the bulk of the monumental, postcard version of Paris. The Rive Gauche holds the Latin Quarter, Saint-Germain-des-Pres and the Musee d’Orsay, traditionally associated with universities, publishing houses and a slower, more academic pace. Both banks meet at the Ile de la Cite and the Ile Saint-Louis, the two islands in the middle of the Seine where Notre-Dame stands, technically part of the 4th arrondissement but claimed a little by both sides.

Knowing which bank you’re on is often more useful for getting around than knowing the arrondissement number, especially when you’re navigating on foot along the Seine or working out which bridge gets you where you’re going.

How the numbered districts map onto the neighbourhoods you’ll actually visit

Paris Spirit’s own destination pages are organised by neighbourhood name, not by arrondissement number, because that’s how most visitors actually think and plan. It helps to know how the two systems line up:

• Montmartre sits almost entirely in the 18th arrondissement, on a hill on the northern edge of the Rive Droite.
• Le Marais spans the 3rd and 4th arrondissements, just east of the centre on the Rive Droite.
• The Latin Quarter and Saint-Germain area covers the 5th and 6th arrondissements on the Rive Gauche.
• Ile de la Cite and Notre-Dame sit in the 4th arrondissement, on the island itself.
• Louvre and Tuileries occupy the 1st arrondissement, the centre of the spiral.
• Champs-Elysees and Opera span the 8th and part of the 9th arrondissements on the Rive Droite.
• Eiffel Tower and Trocadero straddle the river: the tower and Champ de Mars sit in the 7th, on the Rive Gauche, facing the Trocadero gardens across the water in the 16th.

A handful of individual landmarks are worth pinning to their arrondissement too, since they don’t always sit inside the neighbourhood you’d expect. The Sacre-Coeur crowns the same 18th arrondissement hill as the rest of Montmartre. The Musee d’Orsay, on the riverbank facing the Louvre, is in the 7th arrondissement, a short walk from the Eiffel Tower rather than tucked into the Latin Quarter as some visitors assume. Les Invalides and Napoleon’s tomb sit further inland in the same 7th arrondissement. And Pere-Lachaise cemetery is out at the far end of the spiral, in the 20th, which is why it reads on a map as a genuine excursion rather than a quick detour from the centre.

None of these areas require a special journey to reach from central Paris. They are all destinations within the same city, all served by the same metro network, and the catalogue of tours and activities on this site lists every one of them under Paris — you are not leaving the city to visit any of them, just crossing from one arrondissement into the next.

Which arrondissements visitors actually spend time in

Not all 20 arrondissements see the same amount of foot traffic from visitors, and it’s worth knowing which ones do before you start planning a route. The 1st through 8th form the historic, monumental core — the Louvre, the Champs-Elysees, the Opera district, the Eiffel Tower side of the 7th — and this is where most first visits concentrate, along with the 18th for Montmartre and the Sacre-Coeur. Beyond that ring, arrondissements like the 11th, 19th and 20th are largely residential, with their own markets, bars and parks, but fewer single must-see sights, which is exactly why locals send visitors there for a quieter afternoon away from the crowds.

Walking is the natural way to feel the difference between arrondissements, since the borders themselves are rarely marked by anything more dramatic than a street sign changing its plaque colour. A Paris walking tour that threads through two or three neighbouring arrondissements will usually make the spiral logic click faster than any map. For the best vantage points to actually see how the districts sit against each other — the rooftops of the Rive Droite falling away toward the Rive Gauche, or Montmartre’s hill rising above the 9th and 10th — see the best views in Paris, and for a closer look at the 18th arrondissement specifically, things to do in Montmartre breaks the neighbourhood down street by street.

Arrondissements on transit signage and addresses

Once you start using the metro, the arrondissement system shows up constantly, even if the numbers themselves are rarely printed on the platform signs. Station names tend to reference the neighbourhood rather than the number — Louvre-Rivoli, Saint-Michel, Abbesses — so the translation from station to arrondissement is something you build up the same way as the postcode habit: a handful of repeated names start to anchor themselves to a district number after a day or two of moving around. The Paris metro guide covers how the 16 metro lines and 5 RER lines connect these districts to each other, which matters more for planning a day than the arrondissement number alone, since a straight metro line across the city can be faster than a shorter-looking hop that requires a change.

Addresses matter just as much off the metro. Taxi and ride-hailing drivers, delivery couriers and hotel concierges all work from the postcode-and-street combination rather than a neighbourhood name, so having the right 750XX number ready — for a booking confirmation, a taxi pickup, or a delivery — saves time at exactly the moment you’re least likely to want to fumble with a map. See taxis and ride-hailing in Paris for how that plays out in practice, and staying connected in Paris if you’d rather have maps and addresses on hand from the moment you land rather than hunting for wifi first.

Why this matters for planning, not just trivia

Understanding the arrondissement spiral pays off in three practical ways. First, it makes addresses legible: a 75001 address near a 75018 one is a genuine trip across the city, while two addresses inside the same arrondissement are usually a short walk apart. Second, it clarifies distance: because the spiral winds outward from the centre, a jump from the 4th to the 5th arrondissement is a much shorter hop than a jump from the 4th to the 19th, even though the numbers are closer together in the second case only by coincidence of the spiral’s path. Third, it gives you a mental model for exploring on your own terms — cycling from one arrondissement into the next is one of the more direct ways to feel the shift between neighbourhoods, and a guided bike tour through several central arrondissements covers ground a single walking route can’t.

If your itinerary includes the Louvre, it’s worth knowing that the museum sits inside the 1st arrondissement and that a multi-day museum pass covering the Louvre and dozens of other sites across several arrondissements can be worth arranging before you start moving between districts, since it removes the need to buy separate entry at each stop. And if you’re arriving from outside the city altogether, a pre-booked transfer from Charles de Gaulle airport into central Paris gets you straight to whichever arrondissement your accommodation sits in, without having to work out the transit system on your first jet-lagged morning.

For a deeper look at how the districts feel once you’re on the ground, the Paris metro guide explains how the transit map overlays this same spiral, and how many days in Paris walks through how much of the spiral you can realistically cover on a first visit. Choosing where to actually sleep, arrondissement by arrondissement, belongs to a separate page: see where to stay in Paris for that decision.

Arrondissements and the postal code system

Before diving into the FAQ, it’s worth flagging one more everyday use of this system: French administrative paperwork, delivery addresses and even restaurant reservation systems all rely on the arrondissement-based postcode rather than a neighbourhood name. If you’re booking anything that asks for an address — a table, a package delivery, a SIM card registration — using the correct 750XX postcode for wherever you’re staying avoids confusion that a neighbourhood name alone can cause. This is also why French people themselves usually refer to “le cinquieme” or “le dix-huitieme” rather than a neighbourhood name when giving directions; the number is the shared reference point.

For a broader first-time orientation to the city beyond just its districts, see Paris for first-time visitors, and for the historical reasoning behind the boundaries themselves, why Paris has 20 arrondissements and who was Baron Haussmann both go into the nineteenth-century decisions that shaped the map you’re reading today. If you’d rather explore the spiral in person with food built in along the way, a gourmet tour moving through several central arrondissements covers a lot of the same ground this page describes, one tasting stop at a time.

Frequently asked questions about the Paris arrondissements

How many arrondissements does Paris have?

Paris has 20 arrondissements, numbered 1 through 20, fixed in their current boundaries since the nineteenth century.

Why are the arrondissements arranged in a spiral?

The numbering starts at the 1st arrondissement around the Louvre and winds outward clockwise, ring by ring, until it reaches the 20th at the eastern edge of the city.

What do the Paris postcodes mean?

Every Paris postcode follows the pattern 750 plus the two-digit arrondissement number, so 75001 is the 1st arrondissement and 75020 is the 20th.

What is the difference between Rive Droite and Rive Gauche?

The Rive Droite is the northern bank of the Seine, home to the Louvre, the Champs-Elysees and Montmartre. The Rive Gauche is the southern bank, home to the Latin Quarter and Saint-Germain-des-Pres.

Which arrondissement is the Eiffel Tower in?

The Eiffel Tower is in the 7th arrondissement, on the Rive Gauche, facing the Trocadero across the river in the 16th.

Which arrondissement is Notre-Dame in?

Notre-Dame de Paris is on the Ile de la Cite, part of the 4th arrondissement, straddling the boundary between the two banks.

Is arrondissement 1 the safest or most central district?

The 1st arrondissement is the most geographically central, but arrondissement number does not indicate safety or atmosphere — each district has its own mix of quiet and busy streets.