An integrated circuit device includes first to Nth circuit blocks CB1 to CBN, a first interface region disposed along a fourth side and on the D2 side of the first to Nth circuit blocks CB1 to CBN, and a second interface region disposed along a second side and on the D4 side of the first to Nth circuit blocks CB1 to CBN. A local line LLG formed using a wiring layer lower than an Ith layer is provided between the adjacent circuit blocks as at least one of a signal line and a power supply line. Global lines GLG and GLD formed using the Ith or higher wiring layer are provided along the direction D1 over the circuit block disposed between the nonadjacent circuit blocks as at least one of a signal line and a power supply line.