August 2026: 5 STL-Area ZIP Codes to Watch Before Fall

August brings a subtle shift to the St. Louis real estate market. Summer is still in full swing, but buyers and sellers are beginning to look ahead to fall.

Some buyers are hoping to move before the school year settles in, while others are watching for opportunities that may appear as the busiest summer weeks wind down. Location, condition, and everyday livability remain just as important as price.

This month’s STL ZIP Watch highlights five communities with distinct personalities, from centrally located neighborhoods to western suburbs and growing towns beyond the immediate metro. If a move is on your radar, these ZIP codes are worth a closer look.

63117 | Richmond Heights

Richmond Heights is a strong option for buyers who want a central location with easy access to many of the St. Louis area’s most popular destinations.

ZIP code 63117 includes established residential streets, condominiums, townhomes, and single-family houses in a variety of architectural styles. Buyers are often drawn to the area’s combination of neighborhood character and urban convenience.

Forest Park, Clayton, major employment centers, shopping, dining, and cultural attractions are all close by. Interstate 64 and nearby MetroLink access can also make commuting throughout the region more manageable.

Homes that offer updated interiors, functional layouts, and off-street parking may attract particular attention in this highly connected location.

Why buyers love it:

• A central location near Clayton and Forest Park
• Convenient highway and public-transit access
• A mixture of homes, condominiums, and townhomes
• Nearby shopping, dining, and entertainment
• Established streets with neighborhood character

63040 | Wildwood

Wildwood appeals to buyers who want more space, natural scenery, and a quieter suburban setting without leaving the St. Louis region.

ZIP code 63040 includes traditional subdivisions, larger homes, wooded properties, and neighborhoods surrounded by rolling terrain. The area feels removed from the central metro while still offering access to everyday services and major roads.

Outdoor recreation is one of Wildwood’s defining features. Nearby parks, trails, and conservation areas give residents plenty of ways to enjoy the landscape throughout the year.

For buyers prioritizing privacy, outdoor space, and a relaxed pace of life, Wildwood can be an especially appealing place to explore.

Why buyers love it:

• Wooded neighborhoods and scenic surroundings
• Access to parks, trails, and outdoor recreation
• Properties with larger lots and more privacy
• A peaceful suburban atmosphere
• Convenient connections to western St. Louis County

63366 | O’Fallon

O’Fallon continues to offer buyers a broad selection of housing in one of St. Charles County’s most active communities.

ZIP code 63366 includes established subdivisions, newer construction, townhomes, and properties at several price points. That variety can make the area approachable for first-time buyers, growing households, and people looking to simplify.

Residents have access to parks, recreation, shopping, restaurants, and community amenities, while Interstate 70 provides an important connection to the rest of the region.

Homes with thoughtful updates, practical storage, and comfortable outdoor spaces may stand out to buyers comparing options across St. Charles County.

Why buyers love it:

• A wide variety of housing options
• Established neighborhoods and newer developments
• Numerous parks and recreational amenities
• Convenient shopping and everyday services
• Access to Interstate 70 and nearby employment centers

63084 | Union

Union brings small-town character and additional breathing room to this month’s ZIP Watch.

Located in Franklin County, ZIP code 63084 can appeal to buyers who are comfortable living beyond the immediate St. Louis metro. Housing ranges from established homes near the center of town to newer neighborhoods and properties with larger lots.

Union has its own schools, businesses, parks, restaurants, and community activities, giving residents many of the essentials close to home. Access to Highway 50 and Interstate 44 helps connect the area with Washington, Eureka, and the broader region.

Buyers looking for space, value, and a community with its own identity may find Union deserves more attention than it often receives.

Why buyers love it:

• A comfortable small-town setting
• More opportunities for larger lots and outdoor space
• Established homes and newer neighborhoods
• Local businesses, parks, and community activities
• Access to Highway 50 and Interstate 44

63123 | Affton

Affton offers a practical central location and a strong collection of established residential neighborhoods.

ZIP code 63123 includes classic brick homes, ranches, bungalows, and properties that have been updated over time. Buyers who value manageable yards, recognizable architecture, and access to both the city and county may find the area especially attractive.

Affton is convenient to South County, Interstate 55, Grant’s Trail, local parks, shopping, and dining. Its location can work well for buyers commuting in several directions across the metro.

Well-maintained homes with modernized kitchens, finished lower levels, and inviting outdoor spaces may receive extra attention from buyers.

Why buyers love it:

• Established neighborhoods with classic St. Louis homes
• A central location in South St. Louis County
• Convenient access to highways and major roads
• Nearby parks, trails, shopping, and dining
• A range of approachable home styles and sizes

What August Means for Buyers and Sellers

August can be an interesting transition point in the St. Louis-area market.

Buyers may encounter less competition than they saw during the busiest early-summer weeks, but desirable homes can still attract attention quickly. Staying prepared and knowing which neighborhoods fit your priorities remains important.

For sellers, late summer can still be an effective time to list. Thoughtful pricing, strong photography, clean landscaping, and a comfortable interior can help a home feel inviting as buyers begin thinking about fall.

This month’s ZIP codes also show the variety available throughout the region. Richmond Heights and Affton provide central convenience. Wildwood emphasizes scenery and space. O’Fallon offers broad suburban choice, while Union delivers a distinct small-town lifestyle.

At Coldwell Banker Premier Group, we help buyers and sellers compare communities, understand local conditions, and make confident real estate decisions throughout the St. Louis region.