Duncan township, IL

2022 population: 270 ( 2 from 2010 )
Land area: 36.6 square miles
Population density: 7.4 persons per square mile

2022 Census data
White:	270	100.00%	4.2%
Black:	0	0.00%	100.0%
Indian:	0	0.00%	100.0%
Asian:	0	0.00%	100.0%
2+ races:	0	0.00%	100.0%
Hispanic:	0	0.00%	100.0%

Total non-White:	0	0.00%	100.0%

2010-2022 Components	Number	Rate

Change in White population:	11	4.9
Change in Non-White pop.:	-13	-5.8

Race Breakdown with Components of Population Change

[Display all years]

Year:

Total population:

White:

Black:

Indian:

Asian:

2+ races:

Hispanic:

Total non-White:

2010
272
259	95.22%
1	0.37%
2	0.74%
1	0.37%
4	1.47%
5	1.84%
13	4.78%

2000
284
275	96.83%
0	0.00%
0	0.00%
9	3.17%
0	0.00%
0	0.00%
9	3.17%

1990
337
328	97.33%
0	0.00%
0	0.00%
0	0.00%
n/a
0	0.00%
9	2.67%

1980
372
372	100.00%
0	0.00%
0	0.00%
0	0.00%
n/a
0	0.00%
0	0.00%

Decade:

Components:

Births:

Deaths:

Net Migration:

Net Immigration:

Change in White population:

Change in Non-White pop.:

Number	Rate
2000's
n/a
n/a
n/a
n/a

-16	-5.6
4	1.4

Number	Rate
1990's
n/a
n/a
n/a
n/a

-53	-15.7
0	0.0

Number	Rate
1980's
n/a
n/a
n/a
n/a

-44	-11.8
9	2.4

Age, Family & Household Data for Duncan township, IL

[Display all years]

Year:

Median Age:

Under 18:

Voting Age Population:

Over 65:

Households:

Persons Per HH:

Families (%HH):

Married Couples (%Fams):

Single Mothers (%Fams):

Non-Family (%HH):

2022
Number	Percent
48.9
61	22.6%
209	77.4%
91	33.7%

121
2.23

84	69.4%
84	100.0%
0	0.0%
37	30.6%

2010
Number	Percent
48.3
55	20.2%
217	79.8%
51	18.8%

111
2.45

87	78.4%
79	90.8%
3	3.4%
24	21.6%

2000
Number	Percent
33.1
75	26.4%
209	73.6%
30	10.6%

109
2.61

95	87.2%
82	86.3%
9	9.5%
14	12.8%

1990
Number	Percent
35.2
100	29.7%
237	70.3%
73	21.7%

137
2.46

98	71.5%
88	89.8%
10	10.2%
39	28.5%

1980
Number	Percent
33.4
99	26.6%
273	73.4%
40	10.8%

131
2.84

117	89.3%
106	90.6%
6	5.1%
14	10.7%

2022 Housing Data for Duncan township, IL

Household Income
Range	Number	%
Less than $10,000	7	5.8%
$20,000 to $24,999	18	14.9%
$40,000 to $44,999	18	14.9%
$45,000 to $49,999	5	4.1%
$75,000 to $99,999	38	31.4%
$100,000 to $124,999	15	12.4%
$125,000 to $149,999	11	9.1%
$150,000 to $199,999	9	7.4%

Median Household Income	84,338
Per Capita Income	36,169

Welfare Households
	Number	%
SSI	0	0.0%
Public Assistance	0	0.0%
Public Asst. or Food Stamps	0	0.0%

Labor Force, Ages 25-64
	Number	%
Employed	107	90.7%
Unemployed	0	0.0%
In Armed Forces	0	0.0%

Total Labor Force	107	90.7%
Not in Labor Force	11	9.3%

Real Unemployment Rate		9.3%

Class of Worker
	Male	Female	% Male
Private Sector	17	55	23.6%
Non-Profit	7	0	100.0%
Self-Employed	16	9	64.0%

Local Government	0	0	?%
State Government	0	0	?%
Federal Government	0	0	?%

Total Private + Self	33	64	34.0%
Total Non-Profit + Govt.	7	0	100.0%
Total	40	64	38.5%

Pct. Govt.	0.0%

Occupation
	Number	%
Management, Business, Science, Arts	42	34.7%
Sales and Office Occupations	14	11.6%
Professional, Technical	23	19.0%
Service Occupations	18	14.9%
Farming, Forestry, Fishing	24	19.8%
All others	24	19.8%

White Collar		65.3%

Industry
	Number	%
Agriculture, forestry, fishing, hunting	32	26.4%
Health care and social assistance	23	19.0%
Accommodation and food services	18	14.9%
Administrative, support, waste mgmt.	17	14.0%
Manufacturing	12	9.9%
Finance and insurance	12	9.9%
Retail trade	7	5.8%

Hispanic Breakdown
Country	Number	%
Mexican	0	0.00%
Puerto Rican	0	0.00%
Cuban	0	0.00%
Dominican	0	0.00%

Total Central American	0	0.00%
Costa Rican	0	0.00%
Guatemalan	0	0.00%
Honduran	0	0.00%
Nicaraguan	0	0.00%
Panamanian	0	0.00%
Salvadoran	0	0.00%
Other Central American	0	0.00%

Total South American	0	0.00%
Argentinean	0	0.00%
Bolivian	0	0.00%
Chilean	0	0.00%
Colombian	0	0.00%
Ecuadorian	0	0.00%
Paraguayan	0	0.00%
Peruvian	0	0.00%
Uruguayan	0	0.00%
Venezuelan	0	0.00%
Other South American	0	0.00%

Other Hispanic	0	0.00%

Asian Breakdown
Country	Number	%

Language Spoken at Home
Language	Number	%
English	249	100.0%

Ancestry
Country	Number	%
German	61	22.6%
American	44	16.3%
Swedish	36	13.3%
Dutch	18	6.7%
English	12	4.4%
British	7	2.6%

Citizenship & Nativity
	Number	%
U.S. citizen	270	100.0%
Not a citizen	0	0.0%

Native	270	100.0%
Foreign-born	0	0.0%

Educational Attainment, Population 25 Years and Older
0	0.0%	12	5.7%	75	35.9%	87	41.6%	17	8.1%	18	8.6%
Average years of education: 13.4

Population 25 Years and Older
< 9 Years	0	0.0%
9-12 Years	12	5.7%
H.S. Grad or GED	75	35.9%
Some College	87	41.6%
Bach. Degree	17	8.1%
Grad Degree	18	8.6%
Average years of education: 13.4

Recent Trends
	Votes	Δ Margin	Swing %
2020 vs. 2016	R +12	D +1	D + 7.1%
D +13
2020 vs. 2012	R +31	R +30	R + 10.2%
D +1
2020 vs. 2008	R +36	R +36	R + 13.3%
D +0

2016 vs. 2008	R +24	R +37	R + 20.4%
D -13
How to interpret this table

Click on the Year to view municipality-level data for this county.
(Some years may be unavailable)

Year	Turnout	Winner			Runner-Up			Other		Total Votes	Diff (St)	Diff (US)	PSV
2020	91%	Donald Trump* (R)	136	70.5%	Joe Biden (D)	54	28.0%	3	1.6%	193	30	24	0.00%
2016	80%	Donald Trump (R)	124	72.1%	Hillary Clinton (D)	41	23.8%	7	4.1%	172	34	26	0.00%
2012	75%	Mitt Romney (R)	105	65.2%	Barack Obama* (D)	53	32.9%	3	1.9%	161	25	18	0.00%
2008	74%	John McCain (R)	100	62.9%	Barack Obama (D)	54	34.0%	5	3.1%	159	26	17	0.00%
2000	72%	George W. Bush (R)	86	57.3%	Albert Gore, Jr. (D)	59	39.3%	5	3.3%	150	15	9	0.00%

* incumbent PSV: percent of state vote

2020 President, Duncan township

Candidate

Votes

Pct

Joe Biden (D)

28.0%

Donald Trump* (R)

136

70.5%

Jo Jorgensen (Lbt)

1.6%

TOTAL

193

Turnout: 91%	Diff (St): 30	Diff (US): 24

2016 President, Duncan township

Candidate

Votes

Pct

Hillary Clinton (D)

23.8%

Donald Trump (R)

124

72.1%

Gary Johnson (Lbt)

3.5%

Other

0.6%

TOTAL

172

Turnout: 80%	Diff (St): 34	Diff (US): 26

2012 President, Duncan township

Candidate

Votes

Pct

Barack Obama* (D)

32.9%

Mitt Romney (R)

105

65.2%

Other

1.9%

TOTAL

161

Turnout: 75%	Diff (St): 25	Diff (US): 18

2008 President, Duncan township

Candidate

Votes

Pct

Barack Obama (D)

34.0%

John McCain (R)

100

62.9%

Other

3.1%

TOTAL

159

Turnout: 74%	Diff (St): 26	Diff (US): 17

2000 President, Duncan township

Candidate

Votes

Pct

George W. Bush (R)

57.3%

Albert Gore, Jr. (D)

39.3%

Ralph Nader (Grn)

1.3%

Other

2.0%

TOTAL

150

Turnout: 72%	Diff (St): 15	Diff (US): 9

* incumbent

Historical Statewide Election Results for Duncan township, IL

Click on the Year to view county-level data for that election.
(Some years may be unavailable)

Year	Type	Turnout	Winner			Runner-Up			Other		Total Votes	Diff	PSV
2022	S3	70%	Kathy Salvi (R)	101	68.2%	Tammy Duckworth* (D)	45	30.4%	2 [+]	1.4%	148	27	0.00%
[-] Other candidates in 2022: William Redpath (Libertarian) 2 (1.4%);
2022	G	70%	Darren Bailey (R)	109	73.2%	J.B. Pritzker* (D)	36	24.2%	4 [+]	2.7%	149	31	0.00%
[-] Other candidates in 2022: Scott Schluter (Libertarian) 4 (2.7%);
2020	S2	88%	Mark Curran (R)	136	72.7%	Richard Durbin* (D)	50	26.7%	1 [+]	0.5%	187	34	0.00%
[-] Other candidates in 2020: Willie Wilson (I) 1 (0.5%);
2018	G	65%	Bruce Rauner* (R)	104	74.8%	J.B. Pritzker (D)	28	20.1%	7 [+]	5.0%	139	36	0.00%
[-] Other candidates in 2018: Sam McCann (Conservative) 5 (3.6%); Grayson Jackson (Libertarian) 2 (1.4%);
2016	S3	79%	Mark Kirk* (R)	110	65.1%	Tammy Duckworth (D)	43	25.4%	16 [+]	9.5%	169	25	0.00%
[-] Other candidates in 2016: Ken McMillen (Libertarian) 13 (7.7%); Scott Summers (Green) 3 (1.8%);
2014	S2	60%	Jim Oberweis (R)	80	62.5%	Richard Durbin* (D)	41	32.0%	7 [+]	5.5%	128	20	0.00%
[-] Other candidates in 2014: Sharon Hansen (Libertarian) 7 (5.5%);
2014	G	60%	Bruce Rauner (R)	86	66.7%	Pat Quinn* (D)	32	24.8%	11 [+]	8.5%	129	16	0.00%
[-] Other candidates in 2014: Chad Grimm (Libertarian) 11 (8.5%);

*: incumbent +: ran on additional party lines Type: G: Governor; S1,S2,S3: Senate Class 1, 2 or 3
italics: special election RO: runoff election PSV: percent of state vote

Duncan township, IL

Race Breakdown with Components of Population Change

Age, Family & Household Data for Duncan township, IL

2022 Housing Data for Duncan township, IL

2022 Income & Employment Data for Duncan township, IL

2022 Ancestry, Citizenship & Language Data for Duncan township, IL

2022 Educational Attainment Data for Duncan township, IL

Historical Presidential Election Results for Duncan township, IL

Historical Statewide Election Results for Duncan township, IL

Housing Data
	Number	%
Housing Units	121
Median Value	$193,800

Occupied	121	100.0%
Vacant	0	0.0%

Owned	121	100.0%
Rented	0	0.0%
Median Rent	n/a

Single-Family Units	121	100.0%
Detached	121	100.0%
Attached	0	0.0%
Buldings with 5+ Units	0	0.0%
Mobile Homes	0	0.0%