|Development region1||North West Development Region|
|• Mayor||Terec Eugen (Democratic Liberal Party)|
|• Total||74,5 km2 (288 sq mi)|
|Highest elevation||650 m (2,130 ft)|
|Lowest elevation||200 m (700 ft)|
|Time zone||EET (UTC+2)|
|• Summer (DST)||EEST (UTC+3)|
|Area code(s)||+40 260 and +40 3602|
2+40 x60: x is a digit indicating the operator: 2 for Romtelecom and 3 for the other ground telephone networks
The commune is composed of nine villages: Borza (Egregyborzova), Brebi (Beréd), Brusturi (Somróújfalu), Ciglean (Csiglen), Creaca, Jac (Zsákfalva), Lupoaia (Farkasmező), Prodăneşti (Prodánfalva) and Viile Jacului (Szállásszőlőhegy). The largest village in terms of population and area is Jac, and the smallest is Viile Jacului.
In the 1st century AD, Porolissum, an ancient Roman city in Dacia was built on the western part of the commune. The city was the most north-eastern outpost of the Roman Empire, and garrisoned 5,000 auxiliary soldiers transferred from Spain, Gaul, and Britain.
There is a primary school (grades 1 to 8) in Creaca and Jac and only 1-4 grades in the rest of the villages, except Viile Jacului.
The main occupations involve the farms around the village. Most of the men are gone to work in other European Union countries. The ones who stayed work in Zalău, commuting between Zalău and the commune's villages. In the communist era, the people worked mostly in Zalău and on state farms.
Bust of Trajan in Jac