The demography of the Hargaon helps one to know more about the place and that too in details. As per the Census report of India that has been brought out in the year 2001, the total population of the Hargaon has been estimated to be 17,972. Out of the total population of Hargaon, males comprise of 53 percent, while the population of females constitutes of 47 percent. In Hargaon, 18 percent of the total population is below six years of age.
Regarding literacy rate of Hargaon, it can be rightly said that its average literacy rate is 56 percent. Thus it is lower than the average literacy rate of the nation, which is counted to be 59.5 percent. Also going into the details, it can be said that male literacy constitutes of 64 percent and female literacy rate is 48 percent .
In order to meet the demands of day to day requirements, the people of the Hatgaon too follow the trend of the district as a whole . Cultivation is the major occupation and the crops that are produced include rice, wheat, urad, sugarcane, groundnuts and mustard etc. Cotton and also woolen mills too have grown in the Hargaon and also in the nearby region.
There is a legend popular amongst the people of Hargaon . It is believed that the Harishchandra , the renowned king of Ayudhiya built Hargaon. In Hargaon , a pond also has been found. It is called 'Suraj Kund' of 'hindus'. Fairs and festivals too form an integral part of Hargaon. During the month of Kartik Poornima a fair is organized .