If you're curious about the population and steets in Davisburg City, MI, you've come to the right place. Here's a quick rundown of the demographics in Davisburg. Located in Oakland County, Michigan, 48350 is the USPS code for Davisburg City. Parts of it lie outside the city limits, and are classified as part of the Middle Class demographic. The current unemployment rate is 3.5%, which is lower than the state and national averages of 4.9% and 3.9%, respectively.