Novo Selo Municipality (Bulgarian: Община Ново село) is a frontier municipality (obshtina) in Vidin Province, Northwestern Bulgaria, located along the right bank of Danube river in the Danubian Plain. It is named after its administrative centre - the village of Novo Selo. The area borders on Romania beyond the Danube to the north.

The municipality embraces a territory of 109.5 km (42.3 sq mi) with a population of 2,979 inhabitants, as of the April 2011 census.

Novo Selo Municipality includes the following 5 places all of them villages:

Town/Village	Cyrillic	Population
Novo Selo	Ново село	1,015
Florentin	Флорентин	352
Negovanovtsi	Неговановци	398
Vinarovo	Винарово	755
Yasen	Ясен	259
Total		2,979

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

Novo Selo Municipality
Year	1975	1985	1992	2001	2005	2007	2009	2011
Population	7,187	5,753	5,218	4,206	3,733	3,588	3,381	2,979
Sources: Census 2001, Census 2011, „pop-stat.mashke.org“,

The municipality of Novo Selo has a fastly ageing population. As of December 2018 the share of elderly people (aged 65+) reached 43.4%, up from 41.7% in 2011. The share of children aged up to 14 years old declined from 8.6% tot 8.4% in the same period.

Age structure of Novo Selo Municipality
Year	Population	0–4	5–9	10–14	15–19	20–24	25–29	30–34	35–39	40–44	45–49	50–54	55–59	60–64	65–69	70–74	75–79	80+
February 2011	2,979	61	102	93	88	104	82	132	111	127	139	151	219	327	342	301	285	315
December 2016	2,691	73	63	97	103	81	96	98	119	120	149	148	152	225	303	314	232	318
December 2017	2,593	64	61	96	113	75	97	91	104	120	146	147	142	195	286	316	238	312
December 2018	2,500	66	58	87	119	69	84	94	94	122	139	137	149	197	236	316	242	291

According to the 2011 census, among those who answered the optional question on ethnic identification (in total 2970), the ethnic composition of the municipality was the following:

Ethnic group	Population	Percentage
Bulgarians	2834	96.7%
Turks	NA	NA
Roma (Gypsy)	70	2.4%
Other	19	0.6%
Undeclared	NA	NA

Bulgarians constitute the largest ethnic group in the municipality of Novo Selo. Nearly all Romani people are concentrated in the village of Novo Selo. There is also a significant "Vlach" (Romanian) community, but their numbers are declining rapidly.

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 Novo Selo Municipality Orthodox Christianity   94.0% Catholicism   0.4% Protestantism   0.2% Islam   0.0% No religion   2.4% Prefer not to answer, others and indefinable   3.0%

An overwhelming majority of the population of Novo Selo Municipality identify themselves as Christians. At the 2011 census, 94.0% of respondents identified as Orthodox Christians belonging to the Bulgarian Orthodox Church.

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