# Üçoluk

> mahalle (administrative quarter) in Karasu, Sakarya, northwestern Turkey

**Wikidata**: [Q6456061](https://www.wikidata.org/wiki/Q6456061)  
**Source**: https://4ort.xyz/entity/-oluk


## References

1. [Source](https://www.e-icisleri.gov.tr/Anasayfa/MulkiIdariBolumleri.aspx)
2. [Turkish Statistical Institute](https://www.tuik.gov.tr)
3. 2021 Turkish census
4. [Source](https://data.tuik.gov.tr/Bulten/Index?p=Adrese-Dayali-Nufus-Kayit-Sistemi-Sonuclari-2021-45500)