Black Jack is located in Saint Louis County, Missouri. There are roughly 6,487 residents, living in 2,403 households. The average temperature for Black Jack this time of the year is low of 63F and high of 85F. On average, Black Jack gets about 3.64 inches of precipitation in June. Most residents are home owners (84%), have a post secondary degree (58%) and are single, no kids (38%).
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