On 14 November 1976, then Chief Minister of Uttar Pradesh N.D. Tiwari declared it as a separate district with an area of 2550 km2.

[3] The first positive case of COVID-19 was confirmed on 5 March 2020 as a businessman resident of Raj Nagar Extension area of Ghaziabad city who returned from Iran.

According to the 2011 Census, it is the third most populous district of Uttar Pradesh (out of 75), after Prayagraj and Moradabad.

[8] According to the 2011 census of Ghaziabad district, it has a population of 4,681,645,[8] roughly equal to the nation of Ireland[9] or the US state of South Carolina.

[8] The district has a population density of 3,967 inhabitants per square kilometre (10,270/sq mi).

It has the highest density of population in the state with 4060 persons per square km.