There is one unique ZIP code in Collinsville, Illinois and it is 62234. Area code: 618.
1
ZIP codes
37.27
sq mi land
0.94
sq mi water
618
area code
Collinsville, IL ZIP code map
About Collinsville, IL
Collinsville, Illinois, is a vibrant city located within Madison County. Known for its rich history and community spirit, Collinsville offers a unique blend of small-town charm and proximity to larger urban areas. The city is often celebrated for its contributions to local culture and commerce.
Location & geography
Geographically, Collinsville sits in the southwestern part of Illinois, making it a convenient location for commuters to St. Louis, Missouri, which is approximately 12 miles to the southwest. The city spans a land area of 37.27 square miles, complemented by a water area of 0.94 square miles that includes lakes and small streams. Its terrain combines urban development with green spaces, offering residents an appealing environment.
Community & economy
Collinsville is characterized by a strong sense of community, with annual events and local gatherings that foster connections among residents. The city has a diverse economic base, including industries such as manufacturing, retail, and service sector jobs, providing a range of employment opportunities. Daily life in Collinsville is enriched by local parks, shops, and restaurants that serve the needs and preferences of its residents.
Transportation
Transportation in Collinsville is facilitated by several major highways, including Interstate 55/70, which provides easy access to the greater St. Louis area. The nearest airport is the St. Louis Lambert International Airport, located about 22 miles to the west. Additionally, public transit options are available, helping residents commute efficiently.
History
Collinsville was founded in the early 19th century and has since developed into a notable center for local industry. Historically, it was known for its coal mining and later expanded into manufacturing, playing a significant role in the region's economic development. Notable events in its history include the establishment of the renowned Collinsville Garlic Festival, which celebrates the area's agricultural heritage.
Did you know?
A surprising fact about Collinsville is that it is famous for its production of garlic, celebrated through the annual Garlic Festival that attracts visitors from all around. Additionally, the city is home to the world's largest mural of a single garlic bulb, highlighting its unique cultural identity.
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions
What is the ZIP code for Collinsville, IL?
Collinsville, IL has one ZIP code: 62234.
What is the main ZIP code for Collinsville, IL?
The primary ZIP code for Collinsville, IL is 62234. The city uses area code 618 for phone service.
What county is Collinsville, IL in?
Collinsville is located in Madison County, Illinois.
How many ZIP codes are in Collinsville, IL?
Collinsville, IL has 1 ZIP code.
What is the ZIP code for downtown Collinsville and the Collinsville Square area?
Downtown Collinsville, including the historic Collinsville Square, is located in ZIP code 62234. This central area contains many of the city's key municipal buildings and local businesses.
What ZIP code should I use for addresses near the Collinsville Gateway Centre and Gateway Arch National Park area?
Properties and businesses near the Gateway Arch area of Collinsville use ZIP code 62234. This ZIP code covers the major commercial and recreational areas in this part of Madison County.
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