Black Jack, MO Profile: Facts, Map & Data


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Black Jack, Missouri - Basic Facts

The City of Black Jack had a population of 7,027 as of July 1, 2017. Black Jack ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Missouri. See peer rankings below.

The primary coordinate point for Black Jack is located at latitude 38.799 and longitude -90.2634 in St. Louis County. The formal boundaries for the City of Black Jack (see map below) encompass a land area of 2.62 sq. miles and a water area of 0.01 sq. miles. St. Louis County is in the Central time zone (GMT -6). The elevation is 607 feet.

The City of Black Jack (GNIS ID: 2394179) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Black Jack is located within Township of Spanish Lake, a minor civil division (MCD) of St. Louis County.

Beneath the boundary map are tables with Black Jack population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Black Jack: Blackjack.

Neighborhood Data

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City of Black Jack, MO Boundary Map

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Boundary Maps: Township of Spanish Lake | St. Louis County | Missouri Counties

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Black Jack, MO Data & Demographics (As of July 1, 2017)


Total Population 7,027
Daytime Population: Workers 977
Daytime Population: Residents 3,791
Total Daytime Population (TDP) 4,768
Ratio TDP/Total Population1 0.68
Population in Households 6,902
Population in Familes 5,863
Population in Group Qrtrs 125
Population Density2 2,684
Diversity Index3 31


Median Household Income $59,239
Average Household Income $74,024
Per Capita Income $28,167


Total Housing Units 2,809 (100%)
Owner Occupied HU 2,124 (75.6%)
Renter Occupied HU 495 (17.6%)
Vacant Housing Units 190 ( 6.8%)
Median Home Value $154,797
Average Home Value $166,816


Total Households 2,619
Average Household Size 2.64
Family Households 1,852
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.19% 0.18%
Households 0.15% 0.15%
Families 0.42% 0.08%
Median Household Income   2.36%
Per Capita Income   2.38%

Black Jack, MO - Peer Comparisons by Rank and Percentile

The table below compares Black Jack to the other 1,032 incorporated cities, towns and CDPs in Missouri by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 117 89th
Population Density # 73 93rd
Diversity Index # 148 86th
Median Household Income # 162 84th
Per Capita Income # 188 82nd

Additional comparisons and rankings can be made with a VERY EASY TO USE Missouri Census Data Comparison Tool.

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