Boulder Hill, IL Profile: Facts, Map & Data


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Boulder Hill, Illinois - Basic Facts

The Boulder Hill Census Designated Place had a population of 8,065 as of July 1, 2017. Boulder Hill ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Boulder Hill is located at latitude 41.7118 and longitude -88.3365 in Kendall County. The formal boundaries for the Boulder Hill Census Designated Place (see map below) encompass a land area of 1.44 sq. miles and a water area of 0.01 sq. miles. Kendall County is in the Central time zone (GMT -6). The elevation is 669 feet.

The Boulder Hill Census Designated Place (GNIS ID: 2393344) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The Boulder Hill Census Designated Place is located within Township of Oswego, a minor civil division (MCD) of Kendall County.

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

Neighborhood Data

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Boulder Hill Census Designated Place, IL Boundary Map

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Boundary Maps: Township of Oswego | Kendall County | Illinois Counties

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Boulder Hill, IL Data & Demographics (As of July 1, 2017)


Total Population 8,065
Daytime Population: Workers 504
Daytime Population: Residents 3,858
Total Daytime Population (TDP) 4,362
Ratio TDP/Total Population1 0.54
Population in Households 8,065
Population in Familes 7,074
Population in Group Qrtrs 0
Population Density2 5,593
Diversity Index3 59


Median Household Income $67,567
Average Household Income $77,264
Per Capita Income $27,023


Total Housing Units 2,982 (100%)
Owner Occupied HU 2,302 (77.2%)
Renter Occupied HU 516 (17.3%)
Vacant Housing Units 164 ( 5.5%)
Median Home Value $170,737
Average Home Value $182,508


Total Households 2,818
Average Household Size 2.86
Family Households 2,136
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 -0.07% 0.27%
Households 0.05% 0.35%
Families 0.0% 0.27%
Median Household Income   1.48%
Per Capita Income   2.05%

Boulder Hill, IL - Peer Comparisons by Rank and Percentile

The table below compares Boulder Hill to the other 1,368 incorporated cities, towns and CDPs in Illinois 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 # 259 81st
Population Density # 30 98th
Diversity Index # 123 91st
Median Household Income # 291 79th
Per Capita Income # 658 52nd

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

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