Dereağzı, Beylikdüzü
Dereağzı Neighbourhood Steel Doors
Dereağzı is one of 10 neighbourhoods in Beylikdüzü. Population 21,965 (2025), area 6.6 km², density 3,329 per km². Postcode 34528. Muhtar's office: Güldalı Sk. No:8 DEREAĞZI/BEYLİKDÜZÜ. District population rank 7 of 10. Holds 5.2% of district population. 13 named buildings. Our workshop in İkitelli OSB is 18 km away as the crow flies. Nearest: Gürpınar, 0.92 km. We come to this address to measure.

Steel door manufacture, sales, on-site measurement, installation and service across Istanbul.
Dereağzı facts and sources
| Fact | Dereağzı |
|---|---|
| Population | 21,965 (2025), second source agrees [1, 2] |
| Women / men | 11,151 / 10,814 [1] |
| Postcode | 34528 [3] |
| Area | 6.6 km² (calculated) [4] |
| Population density | 3,329 people/km² (calculated) [1, 4] |
| Muhtar's office | Dereağzı Mahalle Muhtarlığı [5] |
| Office address | Güldalı Sk. No:8 DEREAĞZI/BEYLİKDÜZÜ [5] |
| Coordinates | 40.987453, 28.616506 (office building) [5] |
Sources (6), checked 5 November 2026
- [1] dataset version 2025, updated 2026-05-21; primary source TÜİK MEDAS (biruni.tuik.gov.tr/medas) · api.turkiyeapi.dev/v2/neighborhoods?provinceId=34
- [2] derived from TÜİK ADNKS 2025 data (retrieved 2026-11-05) · https://www.nufusune.com/40870-istanbul-beylikduzu-dereagzi-mahallesi-nufusu
- [3] postcode source PTT Kargo (ptt.gov.tr/posta-kodu), dataset version 2025, updated 2026-05-21 · api.turkiyeapi.dev/v2/neighborhoods?provinceId=34
- [4] openstreetmap.org/relation/9397727 (OSM contributors, ODbL; retrieved 2026-11-05) · nominatim.openstreetmap.org
- [5] İBB Open Data Portal, "Muhtarlık Adres Bilgileri" (GeoJSON, dataset updated: 2025-06-05) · data.ibb.gov.tr
- [6] Overpass API, named buildings inside relation/9397727; retrieved 2026-11-05 · OpenStreetMap (OSM contributors, ODbL)
Named buildings inside Dereağzı
13 named buildings
- Baki Gündüz İlkokuluschool
- Fenerkent Zeynep Hatun Camiiplace of worship
- Gürpınar Merkez Camiiplace of worship
- Oruç Gazi Camiiplace of worship
- Mehmet Abdulvahip Yedikardeş Camiiplace of worship
- Yıldız Camiiplace of worship
- Ramazan Kızılkaya Camiiplace of worship
- Hz. Osman Camiiplace of worship
- Selahaddin Eyyübi camiiplace of worship
- İstanbul Galibi Külliyesiplace of worship
- Halis Gebeş Camiiplace of worship
- Beylikdüzü 5 No'lu Aile Sağlığı Merkeziclinic / health centre
- Nazım Hikmet Yıldızhan Parkıpark
Dereağzı within Beylikdüzü
- Density against district average
- 0.26x
- Sharing postcode 34528
- Adnan Kahveci, Gürpınar
Neighbourhoods around Dereağzı
Straight line between muhtar office buildings, not a shared border.
Carry on from Dereağzı
Survey, manufacture and installation run with one team across Beylikdüzü.