Hallaçlı, Çatalca
Hallaçlı Neighbourhood Steel Doors
Hallaçlı is one of 39 neighbourhoods in Çatalca. Population 1,413 (2025), area 34.32 km², density 41 per km². Postcode 34540. Muhtar's office: Hacı Yılmaz Sk. No:4 A HALLAÇLI/ÇATALCA. District population rank 16 of 39. Holds 1.7% of district population. 4 named buildings. Our workshop in İkitelli OSB is 65 km away as the crow flies. Nearest: Aydınlar, 10.7 km. We come to this address to measure.
Steel door manufacture, sales, on-site measurement, installation and service across Istanbul.
Hallaçlı facts and sources
| Fact | Hallaçlı |
|---|---|
| Population | 1,413 (2025), second source agrees [1, 2] |
| Women / men | 609 / 804 [1] |
| Postcode | 34540 [3] |
| Area | 34.32 km² (calculated) [4] |
| Population density | 41 people/km² (calculated) [1, 4] |
| Muhtar's office | Hallaçlı Mahalle Muhtarlığı [5] |
| Office address | Hacı Yılmaz Sk. No:4 A HALLAÇLI/ÇATALCA [5] |
| Coordinates | 41.320059, 28.099776 (office building) [5] |
| Neighbourhood status | 2012 [6] |
Sources (7), 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/191795-istanbul-catalca-hallacli-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/9619871 (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] tr.wikipedia.org/wiki/Hallaçlı,_Çatalca (article text, retrieved 2026-11-05)
- [7] Overpass API, named buildings inside relation/9619871; retrieved 2026-11-05 · OpenStreetMap (OSM contributors, ODbL)
Named buildings inside Hallaçlı
4 named buildings
- Hallaçlı Mahallesi Gönüllü İtfaiye İstasyonufire station
- Hallaçlı İlkokuluschool
- Hallaçlı Merkez Mahalle Camiiplace of worship
- Tarım Yem Marketstreet market
Hallaçlı within Çatalca
- Density against district average
- 0.38x
- Sharing postcode 34540
- 38 neighbourhoods
Neighbourhoods around Hallaçlı
Straight line between muhtar office buildings, not a shared border.
Carry on from Hallaçlı
Survey, manufacture and installation run with one team across Çatalca.