Union, KY Profile: Facts, Map & Data


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Union, Kentucky - Basic Facts

The City of Union had a population of 7,669 as of July 1, 2017. Union ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Kentucky. See peer rankings below.

The primary coordinate point for Union is located at latitude 38.9472 and longitude -84.6732 in Boone County. The formal boundaries for the City of Union (see map below) encompass a land area of 3.33 sq. miles and a water area of 0 sq. miles. Boone County is in the Eastern time zone (GMT -5). The elevation is 837 feet.

The City of Union (GNIS ID: 2405624) 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.

Kentucky is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Union is located within Florence Division of Boone County.

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

EXTREMELY LOCAL Demographic Data

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City of Union, KY Boundary Map

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Boundary Maps: Florence Division | Boone County | Kentucky Counties

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Union, KY Data & Demographics (As of July 1, 2017)


Total Population 7,669
Daytime Population: Workers 1,135
Daytime Population: Residents 3,848
Total Daytime Population (TDP) 4,983
Ratio TDP/Total Population1 0.65
Population in Households 7,669
Population in Familes 6,899
Population in Group Qrtrs 0
Population Density2 2,305
Diversity Index3 28


Median Household Income $96,803
Average Household Income $121,047
Per Capita Income $41,218


Total Housing Units 2,633 (100%)
Owner Occupied HU 2,126 (80.7%)
Renter Occupied HU 405 (15.4%)
Vacant Housing Units 102 ( 3.9%)
Median Home Value $237,453
Average Home Value $258,949


Total Households 2,531
Average Household Size 3.03
Family Households 1,986
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 2.25% 1.74%
Households 2.35% 1.75%
Families 1.44% 1.59%
Median Household Income   1.2%
Per Capita Income   2.39%

Union, KY - Peer Comparisons by Rank and Percentile

The table below compares Union to the other 540 incorporated cities, towns and CDPs in Kentucky 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 # 58 89th
Population Density # 94 83rd
Diversity Index # 112 79th
Median Household Income # 25 96th
Per Capita Income # 52 91st

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

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