† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupJohnston CityIllinoisUnited States
German17.8%16.1%12.5%
English14.6%6.9%9.5%
Irish14.0%10.6%9.4%
American6.1%3.3%5.3%
Italian4.8%5.4%4.8%
Polish2.2%6.0%2.2%
French2.2%0.7%1.6%
Scottish2.1%—1.3%
Chinese0.7%1.0%1.3%
Asian Indian0.6%2.1%1.4%
Filipino0.6%1.0%0.9%
Vietnamese0.4%0.2%0.6%
Mexican1.1%14.4%11.3%
Puerto Rican0.2%1.7%1.8%
Cuban0.2%0.2%0.7%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Johnston City
Illinois
United States
Median age
38.3
39.1
39.1
Age 18–24
12.2%
9.1%
9.2%
Age 65 and older
16.7%
16.9%
17.2%
Household economy
Measure
Johnston City
Illinois
United States
Median household income
$42,465
$83,390
$84,427
Poverty rate
17.9%
11.8%
12.5%
Bachelor's degree or higher (25+)
19.2%
37.9%
35.6%
Languages at home
Measure
Johnston City
Illinois
United States
Speaks a non-English language at home
2.2%
24.1%
22.3%
Chinese (incl. Mandarin & Cantonese)
2.2%
0.9%
1.1%
Religious landscape
Measure
Johnston City
Illinois
United States
Catholic
—
24.2%
18.6%
Evangelical Protestant
—
11.7%
16.5%
Unclaimed / not counted
—
49.2%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Johnston City, Illinois
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−16.8%
2008
−10.0%
2012
−22.0%
2016
−43.1%
2020
−42.5%
2024
−43.8%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
27.2%Harris437
71.0%Trump1,140
1.8%
R+43.8
R+1.3
R+42.3
1,606
R
28.1%Biden460
70.6%Trump1,156
1.3%
R+42.5
D+0.6
R+47.0
1,637
R
26.4%Clinton426
69.5%Trump1,121
4.0%
R+43.1
R+21.1
R+45.2
1,612
R
37.8%Obama560
59.8%Romney886
2.4%
R+22.0
R+12.0
R+25.9
1,481
R
44.0%Obama666
54.0%McCain817
1.9%
R+10.0
D+6.8
R+17.3
1,512
R
41.6%Kerry617
58.4%Bush866
0.0%
R+16.8
—
R+14.3
1,483
Johnston City sits in Williamson County, a historically union-Democratic stronghold that has shifted sharply Republican in recent cycles, reflecting broader realignment across the rural Illinois coalfields.
Across the recorded series it reached a Republican high of 43.8 points in 2024. Between 2020 and 2024 the city moved 1.3 points toward the Republican candidate; the 2024 margin was 43.8 points.
A population of 3,327, a 92% non-Hispanic-white share, and a median household income of $42,465 describe the city.
In 2024, Johnston City, Illinois voted Republican by 43.8 points (R+43.8), carried by the Republican candidate. Out of 1,606 votes cast, 437 went Democratic and 1,140 went Republican.
How many people live in Johnston City, Illinois?
Johnston City, Illinois has a population of 3,327 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Johnston City, Illinois?
Median household income in Johnston City, Illinois is $42,465 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Johnston City, Illinois?
Akashic tracks 6 presidential elections in Johnston City, Illinois from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
