Dekalb County Summary

Life in Dekalb County research summary. HomeSnacks has been researching the quality of life in Dekalb County over the past eight years using Census data, FBI crime data, cost of living data, and other primary sources. Based on the most recently available data, we found the following about life in Dekalb County:

  • The population in Dekalb County is 100,686.

  • The median home value in Dekalb County is $247,769.

  • The median income in Dekalb County is $68,617.

  • The median rent in Dekalb County is $1,024.

  • The unemployment rate in Dekalb County is 7.0%.

  • The poverty rate in Dekalb County is 15.4%.

  • The average high in Dekalb County is 67.0° and there are 86.4 inches of rainfall annually.

Cities & Towns in Dekalb County

List Of Cities & Towns in Dekalb County

DeKalb, IL Population 40,697

Sycamore, IL Population 18,171

Sandwich, IL Population 7,139

Genoa, IL Population 5,044

Cortland, IL Population 4,734

Hinckley, IL Population 2,154

Somonauk, IL Population 1,797

Maple Park, IL Population 1,635

Malta, IL Population 1,535

Waterman, IL Population 1,510

Kirkland, IL Population 1,493

Kingston, IL Population 1,361

Shabbona, IL Population 788

Lee, IL Population 325

Map Of Dekalb County

Dekalb County, IL Weather

  • The average high in Dekalb County is 67.0°.

  • There are 75.15 nice days each year.

  • Expect an average of 86.4 inches of rain each year with 10.8 inches of snow.

  • There is an average of 4:39 hours of sun each day in Dekalb County.

StatDekalb County
Mean High67.0
Nice Days75.15
Rainfall86.4
Snowfall10.8
Sunny_hours4:39
67.0°
Average High
86.4
Inches of Rain

Dekalb County Photos

Home In Dekalb Third Street
Source: Wikipedia User Andy McMurray | GFDL
Altgeld Hall St Bldg On Campus Ever
Source: Wikipedia User Andy McMurray | GFDL
Sandwich Water Tower
Source: Wikipedia User A. McMurray A mcmurray | GFDL
Von Kleinsmid Mansion
Source: Wikipedia User A. McMurray A mcmurray | GFDL
Sycamore Historic District
Source: Wikipedia User A mcmurray | GFDL
Sycamore Il Courthouse Lawn Pumpkin Fest
Source: Wikipedia User IvoShandor | CC BY-SA 3.0

Dekalb County Demographics

Population over time in Dekalb County

The current population in Dekalb County is 100,686. The population has decreased -3.3% from 2019.

Year Population % Change
2022 100,922 -3.5%
2021 104,588 0.2%
2020 104,366 -

Gender in Dekalb County

  • Dekalb County is 50.3% female with 50,657 female residents.

  • Dekalb County is 49.7% male with 50,029 male residents.

Female
50.3% (50,657)
Male
49.7% (50,029)
Gender Dekalb County IL USA
Female 50.3% 50.5% 50.4%
Male 49.7% 49.5% 49.6%

Race / Ethnicity in Dekalb County

Dekalb County is:

  • 74.4% White with 74,958 White residents.

  • 7.5% African American with 7,590 African American residents.

  • 0.1% American Indian with 73 American Indian residents.

  • 2.4% Asian with 2,371 Asian residents.

  • 0.0% Hawaiian with 0 Hawaiian residents.

  • 0.1% Other with 143 Other residents.

  • 3.2% Two Or More with 3,195 Two Or More residents.

  • 12.3% Hispanic with 12,356 Hispanic residents.

White
74.4% (74,958)
African American
7.5% (7,590)
American Indian
0.1% (73)
Asian
2.4% (2,371)
Hawaiian
0.0% (0)
Other
0.1% (143)
Two Or More
3.2% (3,195)
Hispanic
12.3% (12,356)

Table: Dekalb County By Race

Race Dekalb County IL USA
White 74.4% 59.6% 58.9%
African American 7.5% 13.7% 12.1%
American Indian 0.1% 0.1% 0.6%
Asian 2.4% 5.7% 5.7%
Hawaiian 0.0% 0.0% 0.2%
Other 0.1% 0.3% 0.4%
Two Or More 3.2% 2.8% 3.5%
Hispanic 12.3% 17.8% 18.7%

Household Income For Dekalb County, Illinois

  • 7.1% of households in Dekalb County earn Less than $10,000.

  • 3.9% of households in Dekalb County earn $10,000 to $14,999.

  • 8.0% of households in Dekalb County earn $15,000 to $24,999.

  • 7.7% of households in Dekalb County earn $25,000 to $34,999.

  • 10.4% of households in Dekalb County earn $35,000 to $49,999.

  • 17.2% of households in Dekalb County earn $50,000 to $74,999.

  • 13.3% of households in Dekalb County earn $75,000 to $99,999.

  • 17.6% of households in Dekalb County earn $100,000 to $149,999.

  • 8.5% of households in Dekalb County earn $150,000 to $199,999.

  • 6.4% of households in Dekalb County earn $200,000 or more.

Less than $10,000
7.1% (7,156)
$10,000 to $14,999
3.9% (3,889)
$15,000 to $24,999
8.0% (8,051)
$25,000 to $34,999
7.7% (7,748)
$35,000 to $49,999
10.4% (10,457)
$50,000 to $74,999
17.2% (17,282)
$75,000 to $99,999
13.3% (13,353)
$100,000 to $149,999
17.6% (17,693)
$150,000 to $199,999
8.5% (8,576)
$200,000 or more
6.4% (6,475)
Income Dekalb County IL USA
Less than $10,000 7.1% 5.3% 4.9%
$10,000 to $14,999 3.9% 3.5% 3.8%
$15,000 to $24,999 8.0% 6.7% 7.0%
$25,000 to $34,999 7.7% 7.1% 7.4%
$35,000 to $49,999 10.4% 10.1% 10.7%
$50,000 to $74,999 17.2% 15.4% 16.1%
$75,000 to $99,999 13.3% 12.9% 12.8%
$100,000 to $149,999 17.6% 17.6% 17.1%
$150,000 to $199,999 8.5% 9.4% 8.8%
$200,000 or more 6.4% 12.1% 11.4%

Highest level of educational attainment in Dekalb County for adults over 25

  • 3.0% of adults in Dekalb County completed < 9th grade.

  • 4.0% of adults in Dekalb County completed 9-12th grade.

  • 25.0% of adults in Dekalb County completed high school / ged.

  • 24.0% of adults in Dekalb County completed some college.

  • 10.0% of adults in Dekalb County completed associate's degree.

  • 21.0% of adults in Dekalb County completed bachelor's degree.

  • 10.0% of adults in Dekalb County completed master's degree.

  • 1.0% of adults in Dekalb County completed professional degree.

  • 2.0% of adults in Dekalb County completed doctorate degree.

< 9th Grade
3% (3,020)
9-12th Grade
4% (4,027)
High School / GED
25% (25,171)
Some College
24% (24,164)
Associate's Degree
10% (10,068)
Bachelor's Degree
21% (21,144)
Master's Degree
10% (10,068)
Professional Degree
1% (1,006)
Doctorate Degree
2% (2,013)
Education Dekalb County IL USA
< 9th Grade 3% 6% 3%
9-12th Grade 4% 5% 6%
High School / GED 25% 25% 26%
Some College 24% 20% 20%
Associate's Degree 10% 8% 9%
Bachelor's Degree 21% 22% 21%
Master's Degree 10% 11% 10%
Professional Degree 1% 2% 2%
Doctorate Degree 2% 1% 2%

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