In 2011, it had a population of 762,886 and the population density was 161/km². It is Romania's third most populated county, having a population density double that of the country's mean.
Romanians - 97.74%
Romas, others.
Year
County population
1948
557,776
1956
623,817
1966
701,057
1977
817,168
1992
873,229
2002
829,945
2011
762,886
The county received an inflow of population who have moved here due to the industrial development.
The area contains the main oil reserves in Romania, with a longstanding tradition in extracting and refining the oil. The county is heavily industrialised, more than 115,000 people being involved in industrial activities. It contributes to over 8% of the country's industrial production. Some of the biggest international corporations like Coca-Cola, Unilever, InBev, Johnson Controls, Cameron, Weatherford, Michelin, Timken and others have invested heavily in the recent years. The predominant industries in the county are:
Oil industry - almost 50% of the county's industrial production.
Agriculture is also developed - in the southern part mainly extensive agriculture and the hills area is well suited for wines and fruit orchards. In total it realises about 3% of the country's agricultural production.
Tourism
The Prahova Valley is one of the areas with the highest tourist potential in the country having one of the best tourism facilities in Romania. The main tourist destinations are:
The Prahova County Council, elected at the 2016 local government elections, is made up of 37 counselors, with the following party composition:
Administrative divisions
Prahova County has 2 municipalities, 12 towns and 90 communes Municipalities
Câmpina - population: 32,935
Ploiești - capital city; population: 209,945
Towns
Azuga
Băicoi
Boldești-Scăeni
Breaza
Bușteni
Comarnic
Mizil
Plopeni
Sinaia
Slǎnic
Urlaţi
Vălenii de Munte
Communes
Adunați
Albești-Paleologu
Aluniș
Apostolache
Ariceștii Rahtivani
Ariceștii Zeletin
Baba Ana
Balta Doamnei
Bălțești
Bănești
Bărcănești
Bătrâni
Berceni
Bertea
Blejoi
Boldești-Grădiștea
Brazi
Brebu
Bucov
Călugăreni
Cărbunești
Ceptura
Cerașu
Chiojdeanca
Ciorani
Cocorăștii Mislii
Cocorăștii Colț
Colceag
Cornu
Cosminele
Drăgănești
Drajna
Dumbrava
Dumbrăvești
Filipeștii de Pădure
Filipeștii de Târg
Fântânele
Florești
Fulga
Gherghița
Gorgota
Gornet
Gornet-Cricov
Gura Vadului
Gura Vitioarei
Iordăcheanu
Izvoarele
Jugureni
Lapoș
Lipănești
Măgurele
Măgureni
Măneciu
Mănești
Olari
Păcureți
Păulești
Plopu
Podenii Noi
Poiana Câmpina
Poienarii Burchii
Posești
Predeal-Sărari
Provița de Jos
Provița de Sus
Puchenii Mari
Râfov
Salcia
Sălciile
Scorțeni
Secăria
Sângeru
Șirna
Șoimari
Șotrile
Starchiojd
Ștefești
Surani
Talea
Tătaru
Teișani
Telega
Tinosu
Târgșoru Vechi
Tomșani
Vadu Săpat
Valea Călugărească
Valea Doftanei
Vărbilău
Vâlcănești
Historical county
Historically, the county was located in the south central part of Greater Romania, in the central part of the historical region of Muntenia. Its capital was Ploiești. The interwar county territory comprised a large part of the current Prahova County, except the town of Mizil and several nearby villages that were then in Buzău County. In addition to the current county's territory, the interwar county contained several communes in its western part, currently in Dâmboviţa County, and some territory northwest of Predeal, now in Braşov County.
Administration
The county was originally divided into seven administrative districts :
According to the 1930 census data, the county population was 477,750 inhabitants, ethnically divided as follows: 95.0% Romanians, 1.5% Gypsies, 0.9% Jews, 0.8% Hungarians, 0.7% Germans, as well as other minorities. From the religious point of view, the population was 96.0% Eastern Orthodox, 1.2% Roman Catholic, 1.0% Jewish, 0.6% Lutherans, 0.5% Greek Catholic, as well as other minorities.
Urban population
In 1930, the county's urban population was 105,098 inhabitants, comprising 88.8% Romanians, 3.5% Jews, 1.9% Hungarians, 1.7% Germans, 1.4% Romanies, as well as other minorities. From the religious point of view, the urban population was composed of 89.2% Eastern Orthodox, 3.6% Jewish, 3.3% Roman Catholic, 1.5% Lutheran, 1.3% Greek Catholic, 0.6% Reformed, as well as other minorities.