[4] It is the location of Angat Dam which sits on the lower realms of the Sierra Madre Mountain range.

The nucleus of what today is the town of Norzagaray traces from the old barrio Casay and barrio Matictic which was ecclesiastically and politically administered by the Augustinians from the town of Angat as its visitas as shown in the document "Mapa del Teritorio de Bulacan" by Fray Emmanuel Blanco, O.S.A.

The people of Barrio Casay worked for reforms politically, socially and economically, in order to be separated from Angat.

Political boundaries of Angat and Pueblo de Casay y Matictic were demarcated and the newly created town was renamed as "Norzagaray" in honor of the Governor-General.

[6] On September 13, 1977, Barangays Bayabas and Kabayunan were ceded to the newly established municipality of Doña Remedios Trinidad, by virtue of Presidential Decree No.

[citation needed] "Bakas" which is on a portion of the Angat River is recognized as one of the busiest places in the locality, particularly during summertime.

Because of Angat Dam's size, its reservoir sinks to critical levels during the dry season necessitating the need for cloud seeding in some years.

The natives are religious and hear Mass or pray at places of worship, especially Catholic and Iglesia Ni Cristo churches.

On December 12, 2007, Bulacan and the Metropolitan Waterworks and Sewerage System (MWSS) signed an agreement for the development of a P11-billion bulk water supply project.

[22] On January 19, 2008, an 18-hectare (44-acre) waste disposal facility, a new sanitary landfill that would also be a tourist attraction opened in Norzagaray, Bulacan province.