Black Jack, Missouri.
Typical home $221,730 (+3.8% in a year), asking rent $906 . St. Louis, MO-IL metro.
to buy the typical home at today's mortgage rate — +$621 (+114%) since Jan 2020.
- 1 year
- Up $8,079 +4%
- $213,651$221,730 since Sep 2025
- 5 years
- Up $38,120 +21%
- $183,610$221,730 since Sep 2021
Monthly payment to buy the typical home
Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.
- Black Jack$1,164
- Missouri$1,393
- United States$1,922
At the last five years' pace, a typical home here doubles in price every 18 years.
Typical home values in Black Jack, MO rose 3.8% over the past year — faster than the nation's +1.2%.
Living in Black Jack, St. Louis County, Missouri
Black Jack is a city of 6,634 people in St. Louis County. Half its households earn more than $78,331 a year and half less, against $82,936 across St. Louis County; 5% of its people live below the poverty line. 78% of its homes are lived in by their owners and 22% are rented. Unemployment in St. Louis County was 4.2% in August 2026, and the county had 1.2% fewer jobs in 2025 than the year before. The most residents work in schools and health care, then manufacturing.
Written by AI Claude Sonnet 5.5 wrote this on 23 October 2026 from the figures here, a list of nearby places and what it knows. It can be wrong or out of date.
What it’s like
The place. Black Jack is a small city in St. Louis County, and most of its homes are lived in by their owners. Incomes run a little below the county's, and poverty is low. A four-year degree is held by a good share of adults, and the typical commute is a fairly long one. Winters are cold, with snow most years, summers are hot, and rain falls throughout the year.
Work. Residents work mostly in schools, hospitals and social care, with many others in manufacturing, transport and warehouses, and shops. Across St. Louis County, some of the largest workplaces are Washington University in St Louis, The Boeing Company and Mercy Hospital - St. Louis. Unemployment in the county is a little lower than a year earlier, though the county has fewer jobs than it did the year before.
Things to do. Piasa, an archaeological site, is a short drive away. Farther afield, a longer drive brings you to the Gateway Arch, a park on the riverfront, and to the Missouri Botanical Garden. Cahokia, another archaeological site, is also a longer drive away.
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- 2,683households
- 32%of adults have a degree
- 5%below the poverty line
- 28 mintypical commute
What residents work in
Employed residents by industry, from the Census survey. St. Louis County had 589,803 jobs in 2025, 1.2% fewer than the year before (Bureau of Labor Statistics).
Weather through the year
Coldest in January, with highs near 40° and lows near 24°; warmest in July, with highs near 90° and lows near 71°. About 17 inches of snow and 42 inches of rain and melted snow a year.
Average daily high and low, 1991–2020, at the St. Louis Lambert International Airport weather station, 7 miles away (NOAA).
Largest workplaces in St. Louis County
- Washington University in St LouisUniversity or college20,568
- The Boeing CompanyAircraft manufacturing13,947
- Graybar Electric CompanyDistribution equipment, electrical, merchant wholesalers7,787
- Specl. Sch. Dst. St. Louis CO SchoolsSchool district5,153FTE
- Mercy Hospital - St. LouisGeneral hospital5,074FTE
- Brinkmann ConstructorsCommercial building construction general contractors4,695
- Rockwood R-VI SchoolsSchool district3,388FTE
- SSM Health St. Marys Hospital - STLGeneral hospital3,059FTE
Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 995 workplaces with 20 or more staff, 186,284 people in all across the county; Black Jack has two of its own. Colleges come from IPEDS (NCES, 2023–24), school districts from the Common Core of Data (NCES, 2023–24) and hospitals from their Medicare cost reports (CMS, 2023); FTE marks full-time equivalent staff. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.
Natural hazards
- Heat wavesVery high
- HailRelatively high
- Cold wavesRelatively high
- LightningRelatively high
- Winter weatherRelatively high
- Earthquakesrelatively high in parts of Black JackRelatively moderate
FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Black Jack’s census tracts, against the rest of the country; all of them together, relatively high. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.
From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on St. Louis County and the St. Louis, MO-IL metro.
Black Jack home values
Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.
- Black Jack$221,730
- Missouri$265,387
- United States$366,157
Sellers are cutting prices on about 1 in 3 Black Jack listings — the market is roughly in balance.
When this market ran hot
Each cell is that month's year-on-year home-value growth. Read left to right, top row is the latest year — the 2021–22 band is the boom.
Market heat, inside the city limits
Share of listings with a price cut
The early-warning dial: sellers cut when buyers stop reaching. Rising cuts cool a market months before prices notice.
- Black Jack34.36%
- United States26.90%
Homes for sale
Active for-sale inventory. More supply hands power to buyers.
- Black Jack27
New listings per month
Sellers arriving at the market.
- Black Jack10
Zip codes with a Black Jack address
A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Black Jack — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.
Zillow publishes no zip-level series with this city on the address.