As of 2011 Indian Census, Mariahu had a total population of 22,778, of which 11,661 were males and 11,117 were females. Population within the age group of 0 to 6 years was 3,331. The total number of literates in Mariahu was 15,426, which constituted 67.7% of the population with male literacy of 73.5% and female literacy of 61.7%. The effective literacy rate of 7+ population of Mariahu was 79.3%, of which male literacy rate was 86.2% and female literacy rate was 72.1%. The Scheduled Castes and Scheduled Tribes population was 3,364 and 1 respectively. Mariahu had 3248 households in 2011. As of the 2001 Census of India, Mariahu had a population of 20,142. Males constitute 53% of the population and females 47%. In Mariahu, 17% of the population is under 6 years of age.
Transportation
Rail
मडियाहूं भारतीय रेलवे नेटवर्क के माध्यम से भारत के प्रमुख शहरों से जुड़ा हुआ है। इसका एक छोटा रेलवे स्टेशन है जो उत्तर रेलवे का है। स्टेशन कोड MAY है। इस स्टेशन पर कुल 4 एक्सप्रेस ट्रेनें रुकती हैं। आस-पड़ोस के स्टेशन वारिगाँ नवादा हैं। निकटवर्ती प्रमुख रेलवे स्टेशन जौनपुर और जंघई जंक्शन हैं। स्थानीय यात्री इलाहाबाद - जौनपुर पैसेंजर है, जो जौनपुर से इलाहाबाद और इलाहाबाद से जौनपुर के लिए मारियाहु रेलवे स्टेशन पर रुकती है ट्रेन नं। 11055 - गोदान एक्सप्रेस, छपरा एक्सप्रेस, मुंबई से प्रस्थान इसी स्टेशन पर रुकती है। यह ट्रेन स्थानीय लोगों के बीच बहुत प्रसिद्ध है, जो मुंबई से मुंबई आते-जाते हैं।
Road
Driving distance from Mariahu to District headquarters Jaunpur is 18 km. Jaunpur is well connected to Lucknow, Varanasi, Allahabad and other cities of Uttar Pradesh. Quick road transport is available for Jaunpur, Bhadohi, Mirzapur. The nearest airport to Mariahu is Babatpur Airport. Road Distance or driving distance from Mariahu to Babatpur is 35 km. Your total travel time is approximately 0 hour 44 min; which may vary depending upon the road and traffic conditions. Airport is well connected and has direct flight to major cities of India like New Delhi, Mumbai, Kolkata, Chennai, Bangalore, Hyderabad, Patna and many others to join. An international greenfield airport is being constructed at Mariahu to ease out the traffic at Babatpur Airport.
Festivals
The biggest celebrations in Mariahu are Diwali, Durga Pooja & Bharat Milap as yearly festival. People also organize big celebrations on Eid-ul-Fitr, Holi, Ramzan-ul-Mubarak, Raksha Bandhan and many other occasions.
