The commune is situated on the D39 and D131 crossroads, 40 kilometres (25 mi) southeast ofAmiens, in a small depression of a plateau, the start of the valley of the river Luce.
The village name has evolved over the centuries, from "Mahéricourt" in 1135, through "Maharicourt", "Méhatincourt" and "Méharicours en Sangter".SomeRoman remains, of coffins, have been found in the area. There was possibly a small camp there. As with much of the region, it suffered during theHundred Years War and again during theWars of Religion.
Méharicourt was a place of pilgrimage to the martyrs Saint Candide and Saint Flamidien. Their relics were carried from Rome in 1688 and presented to St. Martin's church by the Count of Tincourt.
By 1899, Méharicourt had three steam-powered factories employing 500 people, makinglinen products, socks, stockings and hunting jackets.
The linen industry provided prosperity throughout the 18th and 19th centuries and the village becamechef-lieu, a title it lost toRosières in later years.During the 19th century, the village was invaded byCossacks in 1814–1815.In 1840, the streets were repaired and the church restored, by a grant of 3000 francs and the labour of the local unemployed. The bell-tower, built in 1607, was reconstructed in 1842 A school for girls and a refuge were built in 1863.TheSecond World War saw a German airfield built next to the village, with building materials taken from the town hall of Rosières.