Honeycomb filter

A honeycomb filter comprising:

• a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells which serve as fluid through channels extending from a first end face to a second end face;
• and
• a plugging portion provided at an open end on the first end face side or the second end face side of each of the cells, wherein
• a thickness of the partition wall is 0.204 mm or less,
• a porosity of the partition wall is 58% to 62%,
• an average pore diameter of the partition wall is 8 to 12 μm,
• a number per unit area of pores which exist at a surface of the partition wall and which have equivalent circle opening diameters exceeding 3 μm is 900 to 1250/mm2,
• an average equivalent circle opening diameter of pores which exist at a surface of the partition wall and which have equivalent circle opening diameters exceeding 3 μm is 8.9 to 11.7 μm, and
• in a pore diameter distribution of the partition wall, in the case where the pore diameter (μm) whose cumulative pore volume is 10% of the total pore volume is denoted by D10, the pore diameter (μm) whose cumulative pore volume is 50% of the total pore volume is denoted by D50, and the pore diameter (μm) whose cumulative pore volume is 90% of the total pore volume is denoted by D90,
• D10 is 3.7 to 5.9 μm,
• D90 is 15.0 to 26.0 μm, and
• (Log (D90)-Log (D10))/Log (D50) is 0.67 or less.