Spanish Lake is a community in St. Louis County, Missouri, home to about 17,873 people across 7.4 square miles. Its ZIP code is 63138.
Homes sold for a median of $103 per square foot in the three months ending August 2026, a balanced market.
Mostly Spanish Lake; also St. Louis
Each card is that ZIP code’s whole market, including any part outside Spanish Lake. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Spanish Lake’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | St. Louis Lambert International Airport (STL)10 miles away |
|---|---|
| Nearest city of 250,000+ | St. Louis, MO12 miles away |
| Nearest city of 1 million+ | Chicago, IL248 miles away |
Straight-line distances from the center of Spanish Lake; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Spanish Lake had 18,413 residents in the 2020 census, down 14% since 2000.
It’s the 48th largest of 1,060 towns in Missouri by population.
St. Louis County grew from 50,040 residents in 1900 to 1,004,125 in 2020.
St. Louis County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 87°F in summer, and winter lows average 22°F. About 41.9 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Alton - Melvin Price L&D, IL weather station (5 miles away).
629,036 jobs at 29,717 businesses in St. Louis County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
25 doctors and other health care providers list an office in Spanish Lake.
Nearest hospitals
Providers with an office here
| Specialist doctors | 2 |
|---|---|
| Dentists | 8 |
| Nurse practitioners and physician assistants | 3 |
| Mental health providers | 11 |
| Physical and occupational therapists | 1 |
| Pharmacies | 3 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (3 nearby)
Grocery stores
Pharmacies (1 nearby)
Libraries
Museums
Theaters and performance venues
Counts are within about 2 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Hazelwood, Division of Youth Service. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Arrowpoint Elem.St Louis | Pre-K–5 | 371 | Public | 1.3 mi |
| Larimore Elem.St Louis | Pre-K–5 | 330 | Public | 1.1 mi |
| Twillman Elem.St Louis | Pre-K–5 | 273 | Public | 1.4 mi |
| Bissell HallSt Louis | 6–12 | 22 | Public | 1.8 mi |
| Discovery HallSt Louis | 6–12 | — | Public | 1.8 mi |
| Fort Bellefontaine CampusSt Louis | 6–12 | 12 | Public | 1.8 mi |
| Lewis and Clark HallSt Louis | 6–12 | 14 | Public | 1.8 mi |
| Southeast MiddleSt Louis | 6–8 | 491 | Public | 1.7 mi |
| Spanish Lake CampusSt Louis | 6–12 | — | Public | 1.8 mi |
| Twin RiversSt Louis | 6–12 | 10 | Public | 1.8 mi |
| East MiddleSt Louis | 8 | 167 | Public | 2.4 mi |
| Hazelwood East HighSt Louis | 9–12 | 1,310 | Public | 2.4 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Lesanto's Healing Hands Learning CenterSaint Louis | Pre-K–K | 300 | Nonsectarian | 1.6 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with St. Louis.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.