Hajdú is the name of a historic administrative county (comitatus) of the Kingdom of Hungary in present-day eastern Hungary. The capital of the county was Debrecen. The territory of the county is now part of the Hungarian county Hajdú-Bihar.
Geography
Hajdú county shared borders with the counties Heves, Borsod, Szabolcs, Bihar, Békés and Jász-Nagykun-Szolnok. The river Tisza touched its western border. The Hortobágy steppe lies in the county. Its area was 3343 km² around 1910.
History
The Hajdúság region had a special status in the Kingdom of Hungary, but was turned into the proper county Hajdú in the 19th century. After World War I, it was merged with the Hungarian part of former Bihar county and some smaller parts of former Szabolcs county to form Hajdú-Bihar county, with capital Debrecen.
Districts
In the early 20th century, the districts and their capitals were:
Urban county:
Urban districts:
