SIALIMStatistical Intelligence for America's Local Investment Markets

The Most Expensive ZIP Codes in St. Louis

Ranked from observed Zillow data as of June 2026 — not a forecast. 222 ZIP codes in the St. Louis, MO-IL area. See the St. Louis forecast →

Cheaper
More expensive· dot size = population

10 most expensive ZIP codes in St. Louis, MO are ringed on the map; all 232 ZIPs shown, colored by typical home value and sized by population. Hover any dot for its ZIP and value.

Which are the best ZIP codes to buy in St. Louis?

There is no single answer, because "best" depends on what a buyer is optimizing for. The three tables below rank the same 222 ZIP codes three different ways: by typical home value, by how much prices have actually moved over the past year, and by how far a home's price stretches against observed rent. A ZIP code that leads one list rarely leads all three.

Most expensive — June 2026

Ranked by typical home value (Zillow ZHVI), highest first.

#ZIPCityPopulationTypical value
163124Ladue11.0K$1,312,976
263131Des Peres18.0K$1,012,637
363073Saint Albans1.0K$913,629
463005Chesterfield19.7K$866,266
563105Clayton18.9K$818,532
663127Sunset Hills5.2K$683,198
763141Creve Coeur20.6K$671,765
863038Wildwood7.1K$671,334
963341Defiance3.6K$652,932
1063332Augusta1.7K$575,826

Fastest-appreciating — past 12 months

Ranked by observed price change over the trailing year, not a forecast.

#ZIPCityPopulationTypical value1-yr change
162086Greenville1.4K$162,023+19.7%
262275Greenville2.9K$207,802+15.1%
362278Red Bud6.4K$258,138+14%
462572Waggoner486$145,610+12.5%
562074Alhambra1.2K$228,567+11.6%
662277Prairie du Rocher994$168,824+10.9%
763344Eolia1.7K$390,477+10.2%
862246Greenville9.9K$178,967+9.8%
962001Alhambra1.8K$289,862+9.6%
1063347Foley2.6K$275,376+9.6%

Best rental value — past 12 months

Ranked by price-to-rent (typical value ÷ observed annual rent), lowest first — the ZIP codes where buying looks cheapest relative to renting.

#ZIPCityPopulationTypical valuePrice ÷ annual rent
163115Saint Louis14.3K$42,8063.7×
262206Cahokia Heights13.2K$54,3963.8×
363113Saint Louis11.6K$55,1175.1×
463136Jennings41.3K$88,4145.9×
563137Riverview19.7K$98,3725.9×
663102Saint Louis3.0K$146,9676.8×
763121Normandy24.6K$90,625
863135Ferguson19.4K$114,402
963134Berkeley13.5K$115,4617.1×
1063103Saint Louis8.9K$135,2767.3×

Frequently asked questions

What is the most expensive ZIP code in the St. Louis area?

63124 (Ladue), with a typical home value of $1,312,976 as of June 2026, the latest month Zillow has published.

Which are the best ZIP codes to buy in St. Louis?

It depends on the goal. This page ranks three separately: the most expensive ZIP codes (highest typical value), the fastest-appreciating (largest observed price gain over the past year), and the best rental value (lowest price relative to observed rent). The three lists often name different ZIP codes.

Is this page showing forecasts?

No. Every number on this page is observed Zillow data as of June 2026, not a forecast. Sialim's forecasts, at the metro level, are on the linked metro forecast page.

ZIP-level values shown here are observed Zillow data, not forecasts. Sialim's forecasting engine works at the metro level today; ZIP-level forecasts are planned for Sialim Pro. Data © Zillow, via Zillow Research.