Dumri (Hindi: डूमरि) is a community development block that forms an administrative division in Dumri sub-division in Giridih district in the Indian state of Jharkhand.
Dumri is located at 23°59′29″N 86°00′15″E.
Dumri CD Block covers an area of 42,733.80 hectares (105,597.5 acres), out of which 1,884.97 hectares (4,657.9 acres) was forest area.
Panchayats in Dumri CD Block are: Sasarkho, Nagabad, Khudisar, Jitkundi, Jaridih, Barki Bergi, Behra Suiadih, Parsabeda, Atki, Chhachhando, Chainpur, Kalhawawar, Chengro, Chino, Kulgo (N), Kulgo (S), Dumri, Amra, Bharkhar, Tengra Khurd, Asurbadh, Dumarchutio, Madh Gopali, JamRtara, Isri Bazar (N), Isri Bazar (S), Ranga Matti, Laxmantunda, Kheratunda, Roshnatunda, Balutunda, Lohedih, Nagri, Poraiya, Balthariya, Shankardih and Thakurchak.
The Jamunia River runs near the Grand Trunk Road from around Bagodar to past Dumri and then turns south, forms the border between Dhanbad and Bokaro districts and joins the Damodar.
As per 2011 Census of India, Dumri CD Block had a total population of 226,006, of which 210,002 were rural and 16,004 were urban. There were 116,397 males and 109,609 females. Scheduled Castes numbered 22,045 and Scheduled Tribes numbered 23,547.
Jamtara and Isri are census towns in Dumri CD Block.
In 2001, Dumri CD Block had a population of 179,114 in 2001 census, out of which 70,524 were males and 88,590 were females. 58,453 were literates.
As of 2011 census, the total number of literates in Dumri CD Block was 118,024 out of which 74,181 were males and 43,843 were females.
Dumri is on National Highway 2.
Coal is mined in Dumri CD Block.