Boulder Hill, IL Profile: Facts & Data


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Boulder Hill, Illinois - Basic Facts

The Boulder Hill Census Designated Place had a population of 8,091 as of July 1, 2018. 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, 2018.

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Boulder Hill, IL Data & Demographics (As of July 1, 2018)


Total Population 8,091
Population in Households 8,090
Population in Familes 7,111
Population in Group Qrtrs 1
Population Density1 5,611
Diversity Index2 59


Median Household Income $69,701
Average Household Income $78,972
Per Capita Income $27,843


Total Housing Units 3,003 (100%)
Owner Occupied HU 2,437 (81.2%)
Renter Occupied HU 413 (13.8%)
Vacant Housing Units 153 ( 5.1%)
Median Home Value $172,215
Average Home Value $191,126


Total Households 2,850
Average Household Size 2.84
Family Households 2,156
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. 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 -0.03% 0.37%
Households 0.18% 0.47%
Families 0.11% 0.39%
Median Household Income   1.44%
Per Capita Income   1.96%

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, 2018 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 # 257 81st
Population Density # 30 98th
Diversity Index # 123 91st
Median Household Income # 290 79th
Per Capita Income # 669 51st

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

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Compare Illinois July 1, 2018 Data
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