There is one unique ZIP code in Gray Summit, Missouri and it is 63039. Area code: 636.
1
ZIP codes
4.44
sq mi land
0.01
sq mi water
636
area code
Gray Summit, MO ZIP code map
About Gray Summit, MO
Gray Summit, Missouri, is a charming city located in the heart of Franklin County. This quaint community is known for its picturesque landscapes and welcoming atmosphere, making it a desirable place to live and visit. Surrounded by natural beauty, Gray Summit offers residents and tourists alike a glimpse into the tranquil lifestyle of rural Missouri.
Location & geography
Gray Summit is situated approximately 40 miles west of St. Louis, making it a convenient location for commuters. Nearby cities include Pacific, located about 9 miles to the southwest, and Washington, roughly 12 miles to the northwest. The area encompasses 4.44 square miles of land and features minimal water coverage at 0.01 square miles.
Community & economy
The character of Gray Summit is defined by its close-knit community and a strong sense of local pride. The economy is primarily supported by agriculture and small businesses, reflecting the area's rural roots. Daily life here revolves around community events and activities that bring residents together, fostering a welcoming environment for all.
Transportation
Highway 44 runs just north of Gray Summit, providing easy access to nearby cities and facilitating travel to St. Louis. The nearest major airport is Lampert Field, approximately 20 miles away, catering to general aviation. Public transportation options are limited, encouraging residents to rely on personal vehicles for commuting.
History
Gray Summit was established in the late 19th century, originally flourishing as a railroad town. Key industries included agriculture and timber, which played significant roles in its early development. Over the years, Gray Summit has evolved while maintaining its small-town charm, becoming a destination for those seeking to enjoy the natural beauty of Missouri.
Did you know?
One surprising fact about Gray Summit is its proximity to the acclaimed Missouri Botanical Garden’s Shaw Nature Reserve, a popular spot for nature walks and educational programs. Additionally, the city is named after its elevation, which is notably higher than its surrounding areas, offering unique views of the landscape.
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions
What is the ZIP code for Gray Summit, MO?
Gray Summit, MO has one ZIP code: 63039.
What is the main ZIP code for Gray Summit, MO?
The primary ZIP code for Gray Summit, MO is 63039. The city uses area code 636 for phone service.
What county is Gray Summit, MO in?
Gray Summit is located in Franklin County, Missouri.
How many ZIP codes are in Gray Summit, MO?
Gray Summit, MO has 1 ZIP code.
What is the ZIP code for Gray Summit's main downtown area along Missouri Route 100?
The downtown area of Gray Summit is located in ZIP code 63039, which serves as the primary commercial district for the city.
What ZIP code should I use for shipping to businesses in the Gray Summit industrial area near Franklin County?
Businesses in the Gray Summit industrial area use ZIP code 63039, which covers the entire city and its surrounding commercial zones in Franklin County.
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