Ilfov (Romanian pronunciation: [ˈilfov]) is the county that surrounds Bucharest, the capital of Romania.

It used to be largely rural, but, after the fall of Communism, many of the county's villages and communes developed into high-income commuter towns, which act like suburbs or satellites of Bucharest.

The gentrification of the county is continuing, with many towns in Ilfov, such as Otopeni, having some of the highest GDP per capita levels in the country.

The predominant industries in the county are: At Otopeni there is the main aerial transport hub in Romania - the Henri Coandă International Airport.

The county has a large surface covered with forests and also due to its lakes, it is a frequent week-end and holiday destinations for the inhabitants of Bucharest.

Other notable touristic sites are: The Ilfov County Council, renewed at the 2020 local elections, consists of 32 counsellors, with the following party composition:[7] Most of today's Ilfov County used to be covered by Codrii Vlăsiei, a thick forest, but there were several Dacian settlements, most important being Argedava, on the right bank of the Argeș River in what is now Popești, which was the capital of king Burebista.

The county was named after the Ilfov River and it appears for the first time in a 1482 donation act of voivode Vlad Călugărul to the monastery of Snagov.

The largest settlements by population are Popești-Leordeni, Voluntari, Chiajna, Bragadiru, Pantelimon, Buftea, Otopeni.

Otopeni was transformed into a town under the communist regime, as part of Nicolae Ceaușescu's systematization policy, with semidetached houses being replaced by four-storey blocks of flats.

[20] In 1930, the county's urban population was 649,429 inhabitants, comprising 77.7% Romanians, 10.8% Jews, 3.7% Hungarians, 2.2% Germans, 1.2% Romanis, as well as other minorities.