Knox County, Illinois demographics

Population: 50,193
Median age: 41.8

Median household income: 45,994

Demographics, population, home values, social and economic characteristics of Knox County, Illinois.

Population

202150,193
202050,052
201950,508
201850,999
201751,374
201651,752
201552,112
201452,447
201352,545
201252,698
201152,881
201052,932
200952,077

Knox County, IL cities

Abingdon city - 3,586

Altona village - 602

East Galesburg village - 595

Galesburg city - 30,298

Gilson CDP - 171

Henderson village - 249

Knoxville city - 3,258

London Mills village - 365

Maquon village - 206

Oak Run CDP - 630

Oneida city - 787

Rio village - 199

St. Augustine village - 125

Victoria village - 274

Wataga village - 726

Williamsfield village - 489

Yates City village - 711

Census data for Knox County, Illinois

Demographic and housing estimates in Knox County, Illinois

Total population
Total population50,193
Male25,526
Female24,667
Population by age
Total population50,193
Under 5 years2,814
5 to 9 years2,717
10 to 14 years2,762
15 to 19 years3,415
20 to 24 years3,601
25 to 34 years5,554
35 to 44 years5,819
45 to 54 years5,790
55 to 59 years3,457
60 to 64 years3,566
65 to 74 years6,148
75 to 84 years3,327
85 years and over1,223
Median age (years)41.8
Under 18 years10,042
16 years and over41,240
18 years and over40,151
21 years and over37,471
62 years and over12,649
65 years and over10,698
Population by race
Total population50,193
One race48,499
   White42,575
   Black or African American4,416
   American Indian and Alaska Native45
   Asian518
   Native Hawaiian and Other Pacific Islander0
   Some other race945
Two or more races1,694
Citizen, voting age population
Citizen, VOTING AGE 18 and over population38,999
Male Citizen, VOTING AGE 18 and over population19,595
Female Citizen, VOTING AGE 18 and over population19,404

Social characteristics in Knox County, Illinois

Households by type
Total households20,575
Family households (families)8,748
Married-couple family1,505
Male householder, no wife present, family4,367
Female householder, no husband present, family3,530
Nonfamily households5,955
Average household size7,718
Average family size2.23

Economic characteristics in Knox County, Illinois

Income and benefits (in inflation-adjusted dollars)
Total households20,575
Less than $10,0001,852
$10,000 to $14,9991,220
$15,000 to $24,9992,692
$25,000 to $34,9992,088
$35,000 to $49,9993,021
$50,000 to $74,9993,610
$75,000 to $99,9992,510
$100,000 to $149,9992,340
$150,000 to $199,999766
$200,000 or more476
Median household income (dollars)45,994

Housing characteristics in Knox County, Illinois

Housing occupancy
Total housing units23,839
Occupied housing units20,575
Vacant housing units3,264
Units in structure
Total housing units23,839
1-unit, detached18,448
1-unit, attached252
2 units744
3 or 4 units870
5 to 9 units828
10 to 19 units737
20 or more units1,064
Mobile home896
Boat, RV, van, etc.0
Year structure built
Total housing units23,839
Built 2014 or later0
Built 2010 to 2013470
Built 2000 to 2009804
Built 1990 to 19991,606
Built 1980 to 19891,249
Built 1970 to 19794,281
Built 1960 to 19691,965
Built 1950 to 19593,850
Built 1940 to 19491,074
Built 1939 or earlier8,540
Rooms
Total housing units23,839
1 room719
2 rooms249
3 rooms1,522
4 rooms3,441
5 rooms5,050
6 rooms5,068
7 rooms3,182
8 rooms2,455
9 rooms or more2,153
Median rooms5.7
Bedrooms
Total housing units23,839
No bedroom738
1 bedroom2,629
2 bedrooms6,939
3 bedrooms9,349
4 bedrooms3,527
5 or more bedrooms657
Housing tenure
Occupied housing units20,575
Owner-occupied13,931
Renter-occupied6,644
Average household size of owner-occupied unit2.30
Average household size of renter-occupied unit2.07
Year householder moved into unit
Occupied housing units20,575
Moved in 2017 or later1,159
Moved in 2015 to 20165,121
Moved in 2010 to 20143,974
Moved in 2000 to 20094,123
Moved in 1990 to 19992,740
Moved in 1989 and earlier3,458
Value
Owner-occupied units13,931
Less than $50,0002,211
$50,000 to $99,9996,141
$100,000 to $149,9992,676
$150,000 to $199,9991,153
$200,000 to $299,9991,061
$300,000 to $499,999509
$500,000 to $999,999144
$1,000,000 or more36
Median (dollars)86,300
Mortgage status
Owner-occupied units13,931
Housing units with a mortgage7,618
Housing units without a mortgage6,313
Gross rent
Occupied units paying rent6,290
Less than $5001,953
$500 to $9993,654
$1,000 to $1,499569
$1,500 to $1,99987
$2,000 to $2,49921
$2,500 to $2,9990
$3,000 or more6
Median (dollars)620
No rent paid354

Demographic data for Knox County, IL and each city in the county. Lists of cities by population, wealth and poverty in Knox County, IL.

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