Holland is a city in Ottawa and Allegan counties in the U.S. state of Michigan. Located in the western region of the Lower Peninsula, the city is situated near the eastern shore of Lake Michigan on Lake Macatawa, which is fed by the Macatawa River. As of the 2020 census, the population was 34,378, with an urbanized area population of 107,034. Holland's ZIP codes extend into parts of surrounding townships in Ottawa and Allegan counties.