| Jainagar | |
| Other Name: | Jai Nagar |
| Settlement Type: | Census Town |
| Pushpin Map: | India Jharkhand#India3 |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Jharkhand, India |
| Coordinates: | 23.6567°N 85.3225°W |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Name1: | Jharkhand |
| Subdivision Type2: | District |
| Subdivision Name2: | Ramgarh |
| Unit Pref: | Metric |
| Area Total Km2: | 2.729 |
| Population Total: | 5347 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages (*For language details see Patratu (community development block)#Language and religion) |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Hindi, Urdu |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 829118 |
| Area Code Type: | Telephone/ STD code |
| Area Code: | 0651 |
| Registration Plate: | JH |
| Blank1 Name Sec1: | Lok Sabha constituency |
| Blank1 Info Sec1: | Hazaribagh |
| Blank2 Name Sec1: | Vidhan Sabha constituency |
| Blank2 Info Sec1: | Ramgarh |
Jainagar (also written as Jai Nagar or Jay Nagar) is a census town in the Patratu CD block in the Ramgarh subdivision of the Ramgarh district in the Indian state of Jharkhand.
Jainagar is located at 23.6567°N 85.3225°W.
Ramgarh has a vibrant coal-mining sector. The map alongside provides links to five operational areas of Central Coalfields spread across South Karanpura Coalfield, Ramgarh Coalfield and West Bokaro Coalfield. Four of the six CD blocks in the district have coal mines – Patratu, Ramgarh, Mandu and Chitarpur. The high concentration of census towns in these blocks are noticeable on the map. Only two blocks, Gola and Dulmi, are totally rural areas. Ramgarh district lies in the central part of the Chota Nagpur Plateau. The Damodar valley covers most of the district. The forested areas in highlands to the north and the south of the valley can be seen in the map (mark the shaded areas).[1] "Chotanagpur has a charm of its own… The entire area forms one of the most charming series of views imaginable. The far-off hills in the background in exquisite tints of blue or purple as the light falls, the nearer hills picturesquely shaped and luxuriant in every shade of green with their bold escarpments in black or grey, and the brown plains below furnishing their quota of colours."[2]
Note: The map alongside presents some of the notable locations in the district. All places marked in the map are linked in the larger full screen map.
According to the 2011 Census of India, Jai Nagar had a total population of 5,347, of which 2,806 (52%) were males and 2,541 (48%) were females. Population in the age range 0-6 years was 803. The total number of literate persons in Jai Nagar was 4,544 (73.81% of the population over 6 years).[3]
According to the District Census Handbook 2011, Ramgarh, Jainagar covered an area of 2.729 km2. Among the civic amenities, it had 9 km roads with open drains, the protected water supply involved tap water from treated sources, uncovered wells,overhead tanks. It had 964 domestic electric connections, 15 road lighting points. Among the medical facilities, it had 5 hospitals, 2 dispensaries, 2 health centres, 4 family welfare centres, 6 maternity and child welfare centres, 4 maternity homes, 50 nursing homes, 5 medicine shops. Among the educational facilities it had 7 primary schools, 1 middle school, 1 secondary school, 1 senior secondary school, the nearest general degree college at Patratu 4 km away. Two important commodities it produced were saria and coal. It had the branch offices of 3 nationalised banks.[4]
There is a station at Patratu on the Barkakana-Son Nagar line.[5]