According to the census from the year 2002 there are 3865 souls living in the Biharia.

The population according to nationality:

   

Nationality		Biharia		Cauaceu
	hungarian	2808	88 %	650	96 %
	romanian	356	10 %	27	4 %
	gypsy	19	0,6 %
	german	3	0,09 %
	slovak	2	0,06 %
Total		3188		677

The population according to religion:

Religion	Biharia		Cauaceu
reformed	2091	65 %	574	84 %
catholic	530	16 %	44	6 %
orthodox	320	10 %	18	2 %
baptist	128	4 %	20	3 %

The population according to groups of age:

Age:	0-19	20-39	40-59	>60
People:	586	1022	989	1268

The population according to the educational level:

Less than 8 classes	96
Primary school	827
Trade school	87
Lyceum, high school	2231
Higher education	56

Unemployed people	79 person
Active population	2513 person
Unemployment rata	17%

Demographical evolution:

From the property investments and the immigration results, that the number of population shows a growing tendency.

The numerical evolution of the population of Biharia during the ages:

Year:	1784	1930	1941	1948	1992	1997	2002
People:	1654	3857	3066	3139	3072	3067	3188

The numerical evolution of the population of Cauaceu during the ages:

Year:	1786	1829	1864	1944	1955	2002
People:	530	780	650	610	700	677