Brusartsi Municipality (Bulgarian: Община Брусарци) is a small municipality (obshtina) in Montana Province, Northwestern Bulgaria, located in the Danubian Plain about 6 km south of Danube river. It is named after its administrative centre - the town of Brusartsi.

The municipality embraces a territory of 194.55 km with a population of 4,954 inhabitants, as of February 2011.

The area contains the Smirnenski Reservoir.

Brusartsi Municipality includes the following 10 places (towns are shown in bold):

Town/Village	Cyrillic	Population (December 2009)
Brusartsi	Брусарци	1,302
Bukovets	Буковец	199
Dondukovo	Дондуково	416
Dabova Mahala	Дъбова Махала	112
Kiselevo	Киселево	242
Knyazheva Mahala	Княжева Махала	133
Kriva Bara	Крива бара	1,132
Odorovtsi	Одоровци	33
Smirnenski	Смирненски	563
Vasilovtsi	Василовци	1,337
Total		5,469

The following table shows the change of the population during the last four decades.

Brusartsi Municipality
Year	1975	1985	1992	2001	2005	2007	2009	2011
Population	10,818	9,056	8,073	6,826	6,090	5,769	5,469	4,954
Sources: Census 2001, Census 2011, „pop-stat.mashke.org“,

According to the latest Bulgarian census of 2011, the religious composition, among those who answered the optional question on religious identification, was the following:

Religious composition of Brusartsi Municipality Orthodox Christianity   65.5% Catholicism   0.3% Protestantism   0.5% Islam   0.1% No religion   26.5% Prefer not to answer, others and indefinable   6.1%

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