Intro
Unlock the secrets of St Louis, Missouri with our comprehensive guide to St Louis Missouri zip codes. Discover the citys 29 unique zip codes, explore neighborhoods, and learn about local demographics, housing, and transportation. Get the inside scoop on STLs best areas to live, work, and play, and make informed decisions with our in-depth zip code analysis.
St. Louis, Missouri, a city known for its iconic Gateway Arch, rich history, and vibrant cultural scene, is a popular destination for both tourists and residents. Located in the heart of the Midwest, St. Louis boasts a diverse range of neighborhoods, each with its unique character and charm. One way to navigate and understand the city's layout is by familiarizing oneself with its zip codes. In this article, we'll delve into the world of St. Louis zip codes, exploring what they represent, how they're organized, and what each area has to offer.
Understanding St. Louis Zip Codes

Zip codes in St. Louis, like anywhere else in the United States, are used by the United States Postal Service (USPS) to identify specific geographic areas for mail delivery. St. Louis has a total of 28 zip codes, each representing a distinct neighborhood or area within the city. These zip codes are crucial for navigation, mail delivery, and even determining property values and school districts.
How St. Louis Zip Codes Are Organized
St. Louis zip codes are organized in a way that reflects the city's historical development and geographical layout. The city is divided into four main areas: North City, South City, West County, and South County. Each area has its unique zip codes, which are further subdivided into smaller neighborhoods and communities.
North City Zip Codes

North City is home to some of St. Louis's most historic and culturally rich neighborhoods, including Old North St. Louis, Hyde Park, and College Hill. Some of the notable zip codes in North City include:
- 63101: Downtown St. Louis and the Gateway Arch
- 63102: Old North St. Louis and the historic 14th Street Mall
- 63106: Hyde Park and the vibrant Cherokee Street commercial district
- 63107: College Hill and the iconic Compton Hill Reservoir Park
South City Zip Codes
South City is a diverse area that encompasses a range of neighborhoods, from the trendy boutiques of the South Grand neighborhood to the historic mansions of Compton Heights. Some of the notable zip codes in South City include:
- 63104: The trendy South Grand neighborhood and the bustling Morgan Ford Road commercial district
- 63109: The historic Compton Heights neighborhood and the beautiful Compton Hill Reservoir Park
- 63110: The vibrant Tower Grove South neighborhood and the iconic Missouri Botanical Garden
- 63111: The historic Shaw neighborhood and the beautiful Tower Grove Park
West County Zip Codes

West County is a suburban area that offers a more laid-back atmosphere and a range of outdoor recreational opportunities. Some of the notable zip codes in West County include:
- 63017: The affluent suburb of Chesterfield and the beautiful Faust Park
- 63021: The suburb of Ballwin and the popular Ballwin Commons Park
- 63025: The suburb of Eureka and the beautiful Route 66 State Park
- 63038: The suburb of Glencoe and the historic Glencoe City Park
South County Zip Codes
South County is a diverse area that encompasses a range of neighborhoods, from the historic city of Crestwood to the suburban community of Mehlville. Some of the notable zip codes in South County include:
- 63123: The historic city of Crestwood and the beautiful Crestwood Park
- 63125: The suburb of Affton and the popular Affton White-Rodgers Community Center
- 63126: The suburb of Oakville and the beautiful Jefferson Barracks Park
- 63129: The suburb of Mehlville and the popular Mehlville Park
Conclusion: Navigating St. Louis Zip Codes
In conclusion, understanding St. Louis zip codes is essential for navigating the city's diverse neighborhoods and communities. By familiarizing oneself with the city's zip codes, residents and visitors can better appreciate the unique character and charm of each area. Whether you're looking for historic landmarks, cultural attractions, or outdoor recreational opportunities, St. Louis has something to offer everyone.
What is the most populous zip code in St. Louis?
+The most populous zip code in St. Louis is 63104, which includes the trendy South Grand neighborhood and the bustling Morgan Ford Road commercial district.
What is the wealthiest zip code in St. Louis?
+The wealthiest zip code in St. Louis is 63017, which includes the affluent suburb of Chesterfield and the beautiful Faust Park.
What is the most historic zip code in St. Louis?
+The most historic zip code in St. Louis is 63101, which includes Downtown St. Louis and the iconic Gateway Arch.