Koilakh Village
Koilakh is a revenue village in Rajnagar block, Madhubani district, Bihar. It had a population of 8,648 in 1,937 households (Census 2011).
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8,648 souls. 1,937 homes.
Rajnagar block, Madhubani district, Bihar.
Koilakh today
- Onion₹4,600Madhubani APMC · 11 Nov 2026
- Potato₹1,050Madhubani APMC · 11 Nov 2026
- Bhindi(Ladies Finger)₹1,800Benipatti APMC · 10 Nov 2026
Koilakh at a glance
Koilakh is one of the larger villages of Rajnagar block — 8th of 62 by population, with 8,648 people in 1,937 households (Census 2011). Literacy stood at 59.7%, above Madhubani district's 58.1% (Rajnagar block: 59.6%), while the sex ratio was 1,067 women per 1,000 men, above the district's 928. It falls under Koilakh gram panchayat (LGD) and uses PIN code 847236, served by Koilakh post office. The village covers 952 hectares — about 9.5 km², or roughly 909 people per km² (Census 2011). For elections it falls in the Rajnagar assembly constituency and the Jhanjharpur Lok Sabha constituency.
Official dataCensus 2011 · LGD, updated 21 Oct 2026
Gram panchayat: Koilakh →
Quick panchayat-at-a-glance
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Official dataCensus 2011 · LGD, updated 21 Oct 2026
- Development block
- Rajnagar (राजनगर) Source: Local Government Directory (LGD), Ministry of Panchayati Raj, as of 2026-10-29
- Self-help groups
- 0 self-help groups with 0 members (2025-26) Source: Ministry of Rural Development (DAY-NRLM), Village-wise Self Help Group and Members Count, data.gov.in (GODL-India), retrieved 2026-10-30
Gram panchayat
Koilakh is in the Koilakh (कोईलख) gram panchayat.
Source: Local Government Directory (LGD), 2026-10-21.
How Koilakh compares
By population, Koilakh ranks #8 of 62 inhabited villages in Rajnagar block.
Source: Census of India 2011 (village PCA; mandal and district totals of inhabited villages). Literacy = literates ÷ people aged 7+.
Official dataCensus 2011
What Koilakh had in Census 2011
- Primary school Available · 3 in the village
- Primary health centre (PHC) Available · 1 in the village
- Treated tap water Not available
- All-weather road Available
- Public bus service Not available · nearest 5–10 km away
- Power for homes Available
- Commercial bank Not available · nearest 5–10 km away
- Mobile phone coverage Available
Census 2011 Village Directory — conditions may have changed since.
Page completeness · 1/5
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- History & about
- Sarpanch verified
- Festival or jatara
- School information
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Add what you know →Notice board · Koilakh
No notices this weekWater supply timings, gram sabha dates, camps and drives — residents post them here as announcements.
Villages sharing pincode 847236
Post office: Koilakh
Other villages in Rajnagar block
View all 71 →Koilakh — Census 2011 to estimated 2026
Estimate for 2026 (scaled from Census 2011 by the state's official RGI projection; not a census count)
Method: the Census 2011 count × Bihar's projected population growth from 2011 to 2026 (+27.1%), from the official projections of the Technical Group on Population Projections (National Commission on Population, MoHFW, with the Registrar General of India), Table 21. The report projects no households, so households use the same ratio. Rounded; a single village can differ widely from its state's average. The next Census will replace these figures.
Population Projections for India and States 2011–2036 (nhm.gov.in, PDF) · Table 21 · checked on 2026-10-26
Population, education & work
- Population
- 8,648Census 2011
- Male / female
- 4,184 / 4,464
- Households
- 1,937
- People per home
- 4.5
- Literacy rate
- 59.7%literates ÷ people aged 7+
- Workers
- 2,827
- Work participation
- 32.7%workers ÷ population
Source: Office of the Registrar General & Census Commissioner, India — Census 2011 Primary Census Abstract.
Official dataCensus 2011
Koilakh on the map
The pin is an approximate location, within about 2 km, from the village's own post office in India Post's directory — not the exact site of Koilakh. Exact coordinates come from OpenStreetMap once the village is mapped there.
Koilakh · 26.3152° N, 86.0715° E
Electoral profile
Listed in this constituency by the Local Government Directory (LGD) and checked against map locations nearby. Boundaries are approximate; the electoral roll is the final word. Wrong? Tell us. Results: Election Commission of India, Lok Sabha 2024 results (via OpenCity); Election Commission of India, Bihar Assembly 2025 results site (archived copy, Wayback Machine).
Latest posts from the village
No posts from this village yet. Be the first villager to add one.
Write a postEssential services & places near Koilakh
Koilakh isn't on our map yet, so we can't measure distances. These places are in Rajnagar block, placed there by the nearest mapped village.
Banks, ATMs & post offices562 in Madhubani district
Post office
Post office
Post office
Hospitals & clinics422 in Madhubani district
Primary / community health centre
Baht simar
Primary / community health centre
Barhara
Primary / community health centre
Chapahi
Schools & anganwadis4 in Madhubani district
- raghopur balat high school
School
Police & fire stations5 in Madhubani district
Government offices1 in Madhubani district
Temples10 in Madhubani district
Transport21 in Madhubani district
All places in Rajnagar block (23) →Places of worship in Koilakh →Suggest a missing place
Data © OpenStreetMap contributors (ODbL). Not checked by VoiceOfVillage unless marked verified. Phone numbers and hours appear only when the source lists them; call before you travel. openstreetmap.org/copyright Bank branches: RBI IFSC lists (via github.com/razorpay/ifsc, public domain). Post offices: India Post, All India Pincode Directory (data.gov.in, GODL-India).
People often ask about Koilakh
Where is Koilakh located?
Koilakh is a village in Rajnagar block of Madhubani district, Bihar, India.
Which district is Koilakh in?
Koilakh is in Madhubani district of Bihar.
Which gram panchayat does Koilakh belong to?
Koilakh comes under the Koilakh gram panchayat.
What is the pincode of Koilakh?
The pincode of Koilakh, Rajnagar, Madhubani is 847236.
What is the population of Koilakh?
As per the 2011 Census, Koilakh had a population of 8,648 (4,184 males and 4,464 females).
How many households are there in Koilakh?
Koilakh had 1,937 households at the 2011 Census.
What is the area of Koilakh?
Koilakh covers about 952 hectares.
What is the literacy rate of Koilakh?
The literacy rate of Koilakh was 59.7% at the 2011 Census (share of people aged 7 and above who are literate).
What is the sex ratio of Koilakh?
Koilakh had 1,067 females per 1,000 males at the 2011 Census.
Which Lok Sabha constituency is Koilakh in?
Koilakh is in the Jhanjharpur Lok Sabha constituency.
Who is the MP for Koilakh?
Ramprit Mandal (Janata Dal (United)) won the Jhanjharpur Lok Sabha seat, which includes Koilakh, in 2024.
Which assembly constituency is Koilakh in?
Koilakh is in the Rajnagar assembly (Vidhan Sabha) constituency.
Who is the MLA for Koilakh?
Sujeet Kumar (Bharatiya Janata Party) won the Rajnagar assembly seat, which includes Koilakh, in 2025.
Which development block is Koilakh in?
Koilakh is in the Rajnagar (राजनगर) development block (Local Government Directory).
What is the LGD code of Koilakh?
The Local Government Directory (LGD) code of Koilakh is 220580 and its Census 2011 village code is 220580.
Which villages are near Koilakh?
Villages near Koilakh include Madhubani (about 4.5 km), Pandaul (about 7 km), Rampatti (about 7.5 km), Jitwarpur (about 7.5 km), Barri (about 8.5 km).
What is the population of Koilakh in 2026?
No census has been taken since 2011. Scaling Koilakh's Census 2011 population of 8,648 by Bihar's official RGI projection (+27.1% from 2011 to 2026) gives an estimate of about 11,000 people in 2026. This is an estimate, not a census count; the next Census will replace it.
Who is the sarpanch of Koilakh?
The sarpanch of Koilakh has not yet been verified on VoiceOfVillage. We publish a sarpanch's name only after they verify with an election certificate; until then the elected sarpanch is listed on the eGramSwaraj portal, by the State Election Commission and at the panchayat or block office.
Answers are built from the village's official records (LGD, Census 2011, Election Commission data). If something is wrong, verified residents can correct it after claiming.
- Population, literacy, households: Census 2011 (PCA)
- Village directory: Local Government Directory, record as of 2026-10-21
- Pincode: LGD village–pincode mapping and India Post
- Weather: Open-Meteo, live model estimate
- 2026 estimates: Census 2011 × the state's growth in the RGI / National Commission on Population projections 2011–2036 (Table 21)
- Places nearby: OpenStreetMap contributors (ODbL), RBI IFSC lists, India Post
- Sarpanch: shown only when a sarpanch has verified with an election certificate (none for this village yet)
- Report a correction
What do you need to find near Koilakh?
- Hospital
- PHC / clinic
- Pharmacy
- School
- Bank
- ATM
- Post office
- Market
- Police
- Petrol bunk
- Bus stop
- Railway station
Each opens a page of the nearest places from our directory (OpenStreetMap, RBI, India Post), with straight-line distances.
Pacific Ocean status (NOAA, 8 Oct 2026): El Niño Advisory
There is no El Niño forecast for individual villages. El Niño is a pattern in the Pacific Ocean; how much it changes rainfall here also depends on other conditions, and it does not mean drought everywhere.
Local rainfall estimates are not available yet.
Long-term district average for November: 5.7 mm (IMD normal, 1951–2000)
Not a weather forecast. For forecasts and warnings, follow IMD and official alerts.
District climate page →Latest reports from markets in Madhubani district, within the last 14 days.
Latest reports up to 11 Nov 2026. Prices in ₹ per quintal.
| Commodity | Market | Min | Max | Modal | Date |
|---|---|---|---|---|---|
| Onion · Nasik | Madhubani APMC | 4,500 | 4,700 | 4,600 | 11 Nov 2026 |
| Potato · Red | Madhubani APMC | 1,000 | 1,100 | 1,050 | 11 Nov 2026 |
| Bhindi(Ladies Finger) · Bhindi | Benipatti APMC | 1,800 | 1,900 | 1,800 | 10 Nov 2026 |
| Bhindi(Ladies Finger) · Bhindi | Madhubani APMC | 1,800 | 2,000 | 1,900 | 10 Nov 2026 |
| Brinjal · Brinjal | Benipatti APMC | 2,100 | 2,400 | 2,200 | 10 Nov 2026 |
| Brinjal · Brinjal | Madhubani APMC | 2,200 | 2,500 | 2,300 | 10 Nov 2026 |
| Cabbage · Cabbage | Benipatti APMC | 1,500 | 1,600 | 1,500 | 10 Nov 2026 |
| Cauliflower · Cauliflower | Madhubani APMC | 1,800 | 2,200 | 1,900 | 10 Nov 2026 |
Source: AGMARKNET, Directorate of Marketing & Inspection, via data.gov.in (Government Open Data Licence – India). All markets →
These are wholesale mandi (APMC) prices in ₹ per quintal as reported to AGMARKNET — not the retail price in Koilakh's shops. Best mandi price near Koilakh →
Official dataAgmarknet, 11 Nov 2026
Distances are approximate (the village's own post office in India Post's directory).
All villages near Koilakh →Compare Koilakh with… →All villages in Rajnagar →