Black Jack is a city in St. Louis County, Missouri, home to about 6,589 people across 2.6 square miles. It has no ZIP code of its own: it’s part of 63033.
Homes sold for a median of $126 per square foot in the three months ending August 2026, a seller’s market.
Mostly Florissant; part is in Black Jack
Each card is that ZIP code’s whole market, including any part outside Black Jack. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Black Jack’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Black Jack well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | St. Louis Lambert International Airport (STL)6 miles away |
|---|---|
| Nearest city of 250,000+ | St. Louis, MO11 miles away |
| Nearest city of 1 million+ | Chicago, IL251 miles away |
Straight-line distances from the center of Black Jack; 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.
Black Jack had 6,634 residents in the 2020 census, down 2% since 2000.
It’s the 118th 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 90°F in summer, and winter lows average 24°F. About 41.7 inches of rain and melted snow fall in a typical year, with about 17 inches of snow.
Source: NOAA 1991–2020 climate normals, St Louis Lambert Intl Ap, MO weather station (6 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).
228 doctors and other health care providers list an office in Black Jack.
Nearest hospitals
Providers with an office here
| Primary care doctors | 17 |
|---|---|
| Specialist doctors | 9 |
| Dentists | 35 |
| Nurse practitioners and physician assistants | 28 |
| Mental health providers | 73 |
| Physical and occupational therapists | 50 |
| Optometrists | 3 |
| Chiropractors | 13 |
| Pharmacies | 10 |
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 (2 nearby)
Grocery stores (2 nearby)
Pharmacies (2 nearby)
Libraries
Museums
Theaters and performance venues (1 nearby)
Counts are within about 1.5 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 Ferguson-Florissant R-II, Hazelwood, Specl. Sch. Dst. St. Louis Co.. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Commons Lane ElementaryFlorissant | Pre-K–2 | 351 | Public | 0.5 mi |
| East Early Childhood CenterFlorissant | Pre-K | 86 | Public | 2.5 mi |
| Jamestown Elem.Florissant | Pre-K–5 | 314 | Public | 1.9 mi |
| Jury Elem.Florissant | Pre-K–5 | 480 | Public | 0.8 mi |
| Parker Road ElementaryFlorissant | Pre-K–2 | 401 | Public | 1.1 mi |
| Townsend Elem.Florissant | Pre-K–5 | 351 | Public | 2.5 mi |
| AckermanFlorissant | K–8 | 137 | Public | 1.3 mi |
| Halls Ferry ElementaryFlorissant | 3–5 | 394 | Public | 0.7 mi |
| Robinwood ElementaryFlorissant | 3–5 | 321 | Public | 1.5 mi |
| Wedgwood 6th Grade CenterFlorissant | 6 | 268 | Public | 1.6 mi |
| Cross Keys MiddleFlorissant | 7–8 | 608 | Public | 1.5 mi |
| Mccluer North HighFlorissant | 9–12 | 1,059 | Public | 1.1 mi |
| NorthviewFlorissant | 9–12 | 132 | Public | 1.2 mi |
| North TechnicalFlorissant | 10–12 | 833 | Career and Technical | 1.2 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Salem Lutheran SchoolBlack Jack | Pre-K–8 | 105 | Lutheran Church–Missouri Synod | 1.2 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.
Buying or selling around Black Jack? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
Shares ZIP codes with Florissant.
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.