Union is a suburb in the Louisville Metropolitan area. It has a population of 3,890 and a population density of 186, which is 50% above the national average. It has a median age of 35, which is 4 years below the Louisville Metro median age and 3 years below the national average.

Union has a median home value of $229,500, which is 29% above the Metro average.The average rent of $1,475 is 44% above the metro average rent and 31% above the national average rent. The average household income in Union is $86,406 , which is 34% above the Metro average household income and 27% above the national average of household income.

The average school rating in Union is 4. Union also has a crime index 36 that is below the Metro average and below the National average.

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