I don’t mind noise. I have lived in the city my entire life and have pretty much stopped hearing traffic, sirens and boat horns. I find unnecessary noise like firecrackers and news choppers circling over head for a few hours very annoying but there isn’t a thing I can do about either. There are noise ordinances in St. Paul but they only apply to barking dogs.
If you are looking for a home and noise is a big deal there is a web site where you can type in an address and get a kind of noise score. It is called: Howloud.com
A Soundscore™ rating aggregates noise caused by vehicle traffic, airplane traffic and local sources, such as restaurants, stores, schools, etc.
They use a scale of 0 to 100, with zero being very loud and 100 being quiet.
Also see: Airport Noise There are some pretty comprehensive maps that show air traffic.