• county
  • FIPS 17089
  • Largest town: Aurora

Kane County, Illinois

Kane County had 520,997 residents in the Census Vintage 2024 estimate, on 519.3 square miles of land. It ranks 5th of 102 in Illinois by population and 50th by land area.

Population
520,997
#5 of 102 in Illinois · #143 in US
Area
519.3 sq mi
#50 of 102 in Illinois · #2,009 in US
Density
1,003 / sq mi
#4 of 102 in Illinois · #160 in US
Median household income
$97,543
#7 of 102 in Illinois · #158 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Kane County within Illinois. Pin: Springfield.

Measure from here

Tools and pages that start from Kane County

Kane County population, land area and income

Kane County had 520,997 residents in the Census Vintage 2024 estimate, on 519.3 square miles of land. It ranks 5th of 102 in Illinois by population and 50th by land area. That works out to 1,003.3 people per square mile, 10.4 times the US average of 96.3, and in the top tenth nationally.

The median county-equivalent in Illinois has 24,447 residents, so Kane County is 21.3 times that size.

Its SAIPE 2023 median household income of $97,543 is in the top tenth among 3,143 counties with an estimate.

National rank among 3,144

Population

520,997

3144th1st

143rd of 3,144 (US)

Land area

519 sq mi

3144th1st

2009th of 3,144 (US)

Density

1,003.3 / sq mi

3144th1st

160th of 3,144 (US)

Median household income

$97,543

3143rd1st

158th of 3,143 (US)

Rank within Illinois (102)

Population

520,997

102nd1st

5th of 102 (IL)

Land area

519 sq mi

102nd1st

50th of 102 (IL)

Density

1,003.3 / sq mi

102nd1st

4th of 102 (IL)

Median household income

$97,543

102nd1st

7th of 102 (IL)

How Kane County's population changed since 2020

Kane County gained 4,594 residents between the July 2020 and July 2024 estimates, a rise of 0.9%. That ranks 8th of 102 in Illinois for growth. The median Illinois county changed by -1.7%, and the state as a whole by -0.7%.

Since the April 2020 estimates base, Kane County recorded 23,490 births and 16,603 deaths, a natural change of +6,887. Net international migration added +6,684 and net domestic migration, people moving to or from other US counties, came to -9,670. The largest single component was domestic migration, which removed 9,670 people.

516.4k2020516.6k2021515.1k2022517.2k2023521.0k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
23,490
Deaths
16,603
Net international migration
+6,684
Net domestic migration
-9,670
Change, July 2023 to July 2024
+3,756

Where Kane County is

The Census internal point of Kane County is at 41.939600, -88.428000. It sits in UTM zone 16N. The map shades Illinois's 102 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Kane County outlined. Dots are towns of 1,000+ people with residents in it.

Piatt County: -0.3%Hamilton County: -2.2%Williamson County: -0.1%Edgar County: -2.4%Macoupin County: -2.3%Marshall County: -1.3%Putnam County: +0.0%Richland County: -2.8%Washington County: -1.4%Lee County: -1.5%Douglas County: +0.2%Cook County: -1.6%Effingham County: -0.3%Edwards County: -3.6%Cass County: -2.0%Clay County: -3.4%Knox County: -2.2%LaSalle County: -0.9%Cumberland County: -1.3%Warren County: -3.7%Moultrie County: -0.9%Menard County: -2.5%Fayette County: -1.5%Boone County: -0.0%Lawrence County: -3.2%Marion County: -3.2%Champaign County: +3.0%Clark County: -2.4%Ford County: -0.4%Wayne County: -1.4%Logan County: -1.4%Grundy County: +2.5%Jasper County: -1.8%Crawford County: -1.3%McDonough County: -1.7%Clinton County: +0.5%Perry County: -3.0%Montgomery County: -2.2%Henry County: -2.0%Livingston County: -1.2%Scott County: -3.8%Alexander County: -11.2%Bureau County: -2.2%Brown County: +1.1%Mason County: -3.9%Calhoun County: -4.1%Greene County: -4.3%Coles County: -1.4%Kendall County: +8.2%Lake County: +0.7%Mercer County: -2.2%St. Clair County: -2.3%Wabash County: -3.0%Bond County: -1.7%DuPage County: +0.6%Gallatin County: -5.2%Stephenson County: -3.3%McHenry County: +1.9%White County: -3.0%Saline County: -3.9%Christian County: -2.2%Sangamon County: -1.0%Massac County: -3.6%Macon County: -2.9%Johnson County: -0.0%Jo Daviess County: -2.6%Peoria County: -1.0%DeKalb County: +1.0%Pope County: -1.5%De Witt County: -0.9%Schuyler County: -1.7%Fulton County: -3.1%Ogle County: -0.8%Jersey County: -1.6%Iroquois County: -3.3%Kankakee County: -0.9%Rock Island County: -1.1%Pulaski County: -5.8%Kane County: +0.9%Union County: -2.4%Whiteside County: -1.7%Woodford County: -0.3%Carroll County: -1.5%Adams County: -2.3%Hardin County: -2.6%Madison County: -1.0%Hancock County: -3.1%Monroe County: +0.0%Tazewell County: -1.1%Jackson County: -0.1%Vermilion County: -3.9%Randolph County: -0.6%McLean County: +0.5%Morgan County: -2.6%Shelby County: -1.7%Will County: +1.7%Winnebago County: -0.4%Jefferson County: -2.4%Stark County: -2.2%Henderson County: -4.5%Pike County: -2.6%Franklin County: -1.8%
Change 2020 to 2024
  1. < -3.0%
  2. < -2.2%
  3. < -1.4%
  4. < -0.3%
  5. ≥ -0.3%
no data

Orange pin: Kane County internal point. Dark pin: Springfield.

Internal point

Decimal
41.939600, -88.428000
DMS
41°56'22.56"N 88°25'40.80"W
UTM
16N 381623.3E 4644056.2N
Geohash
dp3nefbey
Plus code
86HHWHQC+RR

Towns in Kane County

26 incorporated places of 1,000+ people have residents in Kane County, 460,536 people together, or 88% of the county. Each figure counts only the part of the town inside Kane County; towns marked "part" extend into another county. The largest is Aurora with 109,990.

  1. 01Aurora (part)109,990
  2. 02Elgin (part)90,216
  3. 03Carpentersville37,144
  4. 04St. Charles (part)32,873
  5. 05Batavia26,555
  6. 06South Elgin24,921
  7. 07Geneva21,168
  8. 08North Aurora19,329
  9. 09Pingree Grove11,512
  10. 10Campton Hills10,894
  11. 11Montgomery (part)9,583
  12. 12Sugar Grove9,339
  13. 13Gilberts9,075
  14. 14Hampshire8,864
  15. 15Algonquin (part)8,400
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Kane County

The Census 2024 county adjacency file lists 5 neighbors for Kane County. The most populous is Cook County, IL, with 5,182,617 residents. Distances run between Census internal points in a straight line.

Distance to Springfield and the nearest big city

Springfield is 162.2 miles SSW of Kane County's internal point in a straight line. The nearest place of 100,000 or more is Elgin, IL (population 114,701), 8.6 miles away. The nearest place of 10,000 or more is Campton Hills, IL (population 10,894), 0.9 miles away.

Kane County FIPS code

The FIPS code of Kane County is 17089: state code 17 for Illinois plus county code 089. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $97,543.

Questions people ask

What is the population of Kane County, Illinois?

The Census Vintage 2024 estimate for July 1, 2024 is 520,997. That is up 4,594 people (0.9%) from the July 2020 estimate of 516,403.

What is the FIPS code of Kane County?

17089. The first two digits (17) are Illinois; the last three (089) identify the county.

What is the largest town in Kane County?

Aurora, with 109,990 residents inside Kane County in 2024 (180,710 across all 4 counties it spans).

Which counties border Kane County?

5 county-equivalents border it in the Census 2024 adjacency file: Cook County, IL; DuPage County, IL; McHenry County, IL; Kendall County, IL; DeKalb County, IL.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.