Provided is a latex composition including a latex that includes a polymer having a tetrahydrofuran-insoluble component content of at least 1 mass% and no greater than 75 mass% and carbon nanotubes that have an average diameter (Av) and a diameter distribution (3Ã) satisfying a relationship 0.60 > 3Ã/Av > 0.20. A composite material and a conductive formed product obtainable using the latex composition exhibit superior conductivity.