While "155929" is not a valid 5-digit U.S. ZIP code, the number is highly significant to the city of , which had an official population of exactly 155,929 in the 2020 Census . Key "Features" of Springfield (Population 155,929)
The city is famous for its innovation and cultural contributions: 155929 zip
: Maintaining a population above 150,000 (reaching 155,929) is a critical feature for the city, as it ensures eligibility for specific federal Community Development Block Grant programs. While "155929" is not a valid 5-digit U