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  1. Home
  2. /Europe
  3. /France
  4. /Cities
  5. /By
← Back to Cities of France

By, Île-de-France

France

City48.3957° N, 2.7861° E

In Île-de-France, France, By is a city.

Population—
ProvinceÎle-de-France
Coordinates48.3957° N, 2.7861° E
CountryFrance

Map

About By

By can be found at 48.40° N, 2.79° E in the Northern Hemisphere. It is part of the Île-de-France division in France.

Cities in Île-de-France

Île-de-France is one of France's administrative regions. By is one of its main cities, along with Paris, Marne La Vallée, Cergy-Pontoise.

Paris2,138,551Marne La Vallée318,325Cergy-Pontoise183,430Paris 13e Arrondissement177,833Saint-Quentin-en-Yvelines146,598Paris 11e Arrondissement144,292Paris 12e Arrondissement140,311Montreuil111,240Boulogne-Billancourt108,782Argenteuil101,475

Nearby Cities

Within 25 km of By, 20 populated places have been registered.

●
Champagne-sur-SeineCity · 6,608 inhab.
0.9 km
●
ThomeryCity · 3,288 inhab.
1.3 km
●
Veneux-les-SablonsCity · 5,091 inhab.
2 km
●
Saint-MammèsCity · 3,429 inhab.
2.5 km
●
Le Gros BoisCity
3 km
●
La Celle-sur-SeineCity
3.1 km
●
Moret-sur-LoingCity · 4,866 inhab.
3.5 km
●
La ThurelleCity
3.6 km
●
La Butte MontceauCity
4 km
●
Vulaines-sur-SeineCity · 2,273 inhab.
4.3 km
●
SamoreauCity · 2,371 inhab.
4.4 km
●
Vernou-la-Celle-sur-SeineCity · 2,742 inhab.
4.6 km
●
ValvinsCity
4.6 km
●
ChangisCity
4.6 km
●
AvonCity · 15,009 inhab.
4.9 km
●
Le MontoirCity
5 km
●
FontainerouxCity
5 km
●
ÉcuellesCity · 2,815 inhab.
5.2 km
●
Le ChenoyCity
5.4 km
●
La BrosseCity
5.7 km

Explore France

France profileAll cities of FranceWorld rankingsCompare countries

Largest cities in France

#1 Paris2,138,551#2 Marseille877,215#3 Lyon520,774#4 Toulouse511,684#5 Nice342,669
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Frequently Asked Questions

What province or state is By in?

By is located in Île-de-France, France.

Where is By located?

By is located at coordinates 48.40° N, 2.79° E in Île-de-France, France.

The data for By, France is part of the Bamwor structured dataset, covering 261 countries and over 13 million cities worldwide.

Developers can access By, France data programmatically via the Bamwor REST API:
https://bamwor.com/api/v1/cities/12306845

AI agents can access By, France data via the Bamwor MCP Server for real-time structured retrieval.

API Documentation →MCP Server →
GET /api/v1/cities/12306845

Source: Bamwor World Encyclopedia — GeoNames (CC BY 4.0)