Looks like NJ. I was going to check to see if it was WI, or MN. My, we have duplicative names across the country. My husband’s late uncle was the Postmaster of Springfield, AR during the 1940s. He once said that there were 16 Springfields across this nation. I guess that’s why we have to have zip codes.
We have zip codes so that the sorters don’t have to know anything about which Spring Hill, TN (there are 2), or Lebanon, TN (there are 3) the sender is trying to get to.
That’s why Matt Groenig chose ‘SPRINGFIELD’ for The Simpsons home........IIRC......
Look up Roman Hruska, a congressman for the 60’s. he had an explanation for why we need Zip codes but I’m too well raised to repeat it here