Houdan (Houdan)
- commune in Yvelines, France
- Country:
- Postal Code: 78550
- Coordinates: 48° 47' 27" N, 1° 36' 6" E
- GPS tracks (wikiloc): [Link]
- Area: 10.39 sq km
- Population: 3535
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q389485
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/02bs67]
- Freebase ID: [/m/02bs67]
- GeoNames ID: Alt: [3013120]
- GeoNames ID: Alt: [3013120]
- SIREN number: [217803105]
- SIREN number: [217803105]
- BnF ID: [15275989x]
- BnF ID: [15275989x]
- VIAF ID: Alt: [168626674]
- VIAF ID: Alt: [168626674]
- Library of Congress authority ID: Alt: [n82243993]
- Library of Congress authority ID: Alt: [n82243993]
- MusicBrainz area ID: [7091e8f8-e95b-4d27-82aa-bdf66dfaf58f]
- MusicBrainz area ID: [7091e8f8-e95b-4d27-82aa-bdf66dfaf58f]
- WOEID: [594958]
- WOEID: [594958]
- INSEE municipality code: 78310
- INSEE municipality code: 78310
Shares border with regions:


Richebourg
- commune in Yvelines, France
- Country:
- Postal Code: 78550
- Coordinates: 48° 49' 24" N, 1° 38' 15" E
- GPS tracks (wikiloc): [Link]
- Area: 10.55 sq km
- Population: 1504
- Web site: [Link]
Goussainville
- former commune in Eure-et-Loir, France
- Country:
- Postal Code: 28410
- Coordinates: 48° 46' 35" N, 1° 33' 16" E
- GPS tracks (wikiloc): [Link]
- Area: 10.83 sq km
- Population: 965


Maulette
- commune in Yvelines, France
- Country:
- Postal Code: 78550
- Coordinates: 48° 47' 35" N, 1° 37' 14" E
- GPS tracks (wikiloc): [Link]
- Area: 7.89 sq km
- Population: 904


Saint-Lubin-de-la-Haye
- commune in Eure-et-Loir, France
- Country:
- Postal Code: 28410
- Coordinates: 48° 49' 9" N, 1° 34' 17" E
- GPS tracks (wikiloc): [Link]
- Area: 14.32 sq km
- Population: 953
- Web site: [Link]


Gressey
- commune in Yvelines, France
- Country:
- Postal Code: 78550
- Coordinates: 48° 50' 2" N, 1° 36' 32" E
- GPS tracks (wikiloc): [Link]
- Area: 7.11 sq km
- Population: 548