It has 2,965 inhabitants.
The northeastern border of the municipality runs along the Emme. The main settlement area is the floodplain and the rock terrace, which is about 20 meters higher than the river bed. In the area by Hasle bei Burgdorf, the Emmental is about 1 to 2 kilometers wide. From the Southwest and the South four other valleys meet the Emmental: Biembachtal, Bigental, Talgraben and Goldbachtal. Almost the whole watershed of the Biembachtal belongs to Hasle bei Burgdorf, while only the lower segments the other valleys are located in the municipality.
The entire southern and western part of the municipality is covered by´the molasse hills between Emmental and Aaretal. This landscape is characterized by hill crests as well as valleys and trenches, which are often very steep - this makes agricultural use of the land very difficult. Therefore, the hills are dominated by pasture and forests from a certain height. The hills reach an average height of 800 meters above sea level. On the Wägesse a broad crest between Biembachtal and the Widimattgraben - another valley - the highest point in Hasle bei Burgdorf is reached with 918 meters above sea level. As of 1997, 7 % of the area were urban, 32 % forested, 60 % in agricultural use, and less than 1 % was unproductive land.
Several farms and groups of farms, which are spread out in the valleys and hills, also belong to Hasle bei Burgdorf.
Nonetheless, Hasle bei Burgdorf still primarily lives from agriculture, especially dairy and animal husbandry; but there is also tillage and fruit-growing. There are also a few employments in the service sector
In the Middle Ages, Hasle was part of the Grafschaft Kyburg. From 1384, it was ruled by Berne. In 1525, the village became part of the office of a village mayor Burgdorf. After the collapse of the Ancien Régime in 1798, during the Helvetic Republic, Hasle became a part of the district (Distrikt) of Burgdorf; from 1803, it was part of the Oberamt of Burgdorf, which became a district (Amtsbezirk) in 1831.