Hajdú-Bihar County
Hajdú–Bihar is an administrative county in eastern Hungary, on the border with Romania. It shares borders with the Hungarian counties Szabolcs-Szatmár-Bereg, Borsod–Abaúj–Zemplén, Jász–Nagykun–Szolnok and Békés. The capital of Hajdú-Bihar... Wikipedia
- Country: Hungary
- Region: Northern Great Plain
- County seat: Debrecen
- President of the General Assembly: Zoltán Pajna (Fidesz-KDNP)
- Area rank: 4th in Hungary
- Population (2018): 530,464
- Rank: 4th in Hungary
- Postal code: 40xx – 422x, 4241 – 4243, 425x – 429x
- Area code(s): (+36) 52, 54
- ISO 3166 code: HU-HB
- Data source: DuckDuckGo