The article researches the neoindustrial factors influencing development of industrial city. Their quantitative assessment is carried out on the basis of use of the index method together with a multiplicative model which allows taking account of and harmonizing the low and high values of indicators, also determining the degree of conformity of the calculated index with conditions of reality. The index of development of industrial city is defined on the basis of three sub-indices: knowledge index, innovations index, information-communication technologies index. On the basis of calculation of the index of development of industrial city under influence of neoindustrial factors the low level of development of industrial city is defined. It has been determined that the level of innovative development is high and reaches 0,519, while the level of knowledge is lower, reaching 0,438. The general index of knowledge and innovations for Zaporizhzhya is 0,476, which demonstrates the insufficient level of the development of industrial city under the influence of the newest factors. It is concluded that the incomplete and inefficient use of potential opportunities results in a relatively low level of the development of industrial city from the point of view of the three-vector model of «knowledge ? innovations ? information-communication technologies». This requires the search for an efficient instrumentarium that will allow the development of city on the basis of positive impact of neoindustrial factors.