Honeycomb filter

A honeycomb filter comprising:

• a honeycomb structure that is pillar-shaped and has porous partition walls disposed so as to surround a plurality of cells each of which serves as a fluid through channel extending from an inflow end face of the honeycomb structure to an outflow end face of the honeycomb structure, and
• plugging portions that are disposed at any one of ends on the inflow end face and ends on the outflow end face, of the plurality of cells, wherein,
• in a cross section perpendicular to an extending direction of the plurality of cells, the honeycomb structure includes a central portion including a center of gravity O of the cross section, and an outer peripheral portion located outside of the central portion,
• a thickness T1 of the partition walls in the central portion is 0.20 to 0.28 mm,
• a thickness T2 of the partition walls in the outer peripheral portion is 73 to 90% of the thickness T1 of the partition walls in the central portion,
• the outer peripheral portion extends from an outer peripheral edge of the cross section of honeycomb structure by 6 to 12% of a radius r which is from the center of gravity O of the cross section to the outer peripheral edge,
• wherein the honeycomb structure has a cell density of 31 to 38 cells/cm2, and
• wherein a porosity of the partition walls is 52 to 60%.