When searching for an address in the 15th arrondissement and receiving a package sent to 75015, the last two digits of the postal code are enough to locate the neighborhood. This direct link between postal code and arrondissement is a Parisian peculiarity that simplifies navigation, provided you understand the logic behind the division.
Since the merger of the first four arrondissements into a single sector called “Paris Centre” and the update of the Official Geographic Code on January 1, 2026, some landmarks have shifted.
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Snail numbering: how to read the map of Paris arrondissements
We often hear about the Parisian “spiral” without really knowing where it starts. The 1st arrondissement is located at the heart of the city, around the Louvre. The numbering then turns clockwise, gradually moving away from the center.
Specifically, the 2nd is just northeast of the 1st, the 3rd continues eastward, and so on up to the 20th arrondissement, at the eastern edge of the capital. This spiral layout is not arbitrary: it dates back to the Second Empire and the Haussmannian transformations that reshaped the city.
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To quickly orient oneself, one can mentally divide Paris into four quadrants around the Seine. To the north, the even-numbered arrondissements (2nd, 8th, 9th, 10th, 17th, 18th) form the arc of the right bank. To the south, the 5th, 6th, 7th, 13th, 14th, and 15th constitute the left bank. The eastern arrondissements (11th, 12th, 19th, 20th) concentrate the most densely populated neighborhoods, while the west (16th, 17th) presents a more spacious urban fabric.
For those who want to delve deeper into the complete mapping, you can learn more on EpicBuzz with an updated map of postal codes and boundaries.
Paris Centre and postal codes: what the 2020 merger changes in daily life
Since January 1, 2020, the 1st, 2nd, 3rd, and 4th arrondissements have been grouped under a single mayoralty, that of Paris Centre. On the ground, the merger has a direct administrative consequence: a single mayor manages this sector.
However, the postal codes 75001, 75002, 75003, and 75004 remain distinct. The Post Office has not aligned its nomenclature with the municipal merger. A letter addressed to the Marais still carries the 75003 or 75004 depending on the street, not a hypothetical “75000 Paris Centre”.
From the Insee side, each former arrondissement retains its own code, from 75101 to 75104. The overall municipal code for Paris remains 75056, and the arrondissement code is 751. This dual reading (postal code for mail, Insee code for statistics) regularly generates confusion in administrative procedures or real estate searches.
Boundary markers for Paris Centre
The boundaries of Paris Centre follow those of the four former arrondissements. The Seine to the south, the boulevard de Sébastopol to the east of the 1st, and the rue de Turbigo to the north of the 3rd. On the map, the perimeter resembles an irregular rectangle wedged between the City Hall and the Halles.
Physical limits of the arrondissements: Seine, boulevards, and ground markers
The borders between arrondissements are not always easy to spot on the ground. Unlike numbered streets, the limits often follow historical axes without visible signage.
- The Seine constitutes the most readable boundary: it separates the right bank (even-numbered arrondissements to the north) from the left bank (5th to 15th), with a few exceptions like the 12th and 13th which share the Bibliothèque nationale de France.
- The grand Haussmannian boulevards (boulevard de Magenta, boulevard Voltaire, boulevard Saint-Germain) frequently mark the boundary between two adjacent arrondissements.
- The périphérique marks the outer boundary of Paris intra-muros, separating the 20 arrondissements from the neighboring municipalities of the petite couronne.
- Railways also play a role: the train yards of the Gare de l’Est and Gare du Nord form a natural barrier between the 10th and 18th arrondissements.
To identify the exact limit of an arrondissement on a given street, one looks at the plaque: Parisian plaques indicate the arrondissement number in Roman numerals under the street name.
Real estate prices by arrondissement in Paris: the hidden map behind the plan
Classic maps show the borders, but not what makes them so different in daily life. Since the correction of the real estate market that began in 2023, the average price per square meter in Paris stabilizes around 10,500 euros in 2026, according to analysis by Home Select Paris.
This average masks considerable discrepancies. Central arrondissements like the 3rd, 6th, and 7th are experiencing a slight price recovery, driven by the scarcity of land and heritage attractiveness. The peripheral arrondissements (13th, 19th, 20th) remain generally stable, without the upward momentum observed before 2022.
Short-term rentals: rules that vary by zone
Paris applies stricter regulations than the rest of France for tourist accommodations. Since January 1, 2025, the rental of a primary residence is limited to 90 days per year (compared to 120 days nationally), with a requirement for registration at the town hall. Since May 20, 2026, each tourist accommodation must be registered via a national online service.
The most touristy arrondissements (1st, 4th, 7th, 18th around Montmartre) concentrate most of the controls. Before renting, checking the area on the arrondissement map takes on a very concrete meaning.
Low traffic zone in central Paris: a new urban boundary
The low traffic zone (ZTL) established in the heart of Paris redraws a functional boundary that does not exactly coincide with the arrondissement limits. Its perimeter mainly covers the 1st, 2nd, 3rd, and 4th arrondissements, but partially spills over into the 5th, 6th, and 7th depending on the axes.
On the ground, the ZTL restricts car traffic in an area where only residents, professionals, and public transport can circulate freely. For those consulting an arrondissement map with the perspective of moving or regular travel, this layer of mobility weighs as much as the postal codes.
Feedback varies on this point depending on neighborhoods and times, but the impact on car accessibility to central Paris is already measurable. Cross-referencing the administrative map of the arrondissements with the ZTL map provides a more complete reading of Parisian geography as it is experienced in 2026.