Illinois 18th State Senate District

Office (updates table and map)

President margin by year

Place winner margin

1876–2024 · D minus R

Full record · 1876 → 2024

2024

Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab

The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.

People and households

Who lives here

Exact values for this place, its state, and the United States.

Race · ethnicity · ancestry

Communities and origins

German15.2%16.1%12.5%

Irish14.2%10.6%9.4%

Polish11.8%6.0%2.2%

Italian8.1%5.4%4.8%

English6.1%6.9%9.5%

American3.7%3.3%5.3%

Swedish2.0%1.5%—

Russian1.7%——

African American†15.7%12.1%9.9%

African0.5%0.5%0.5%

Nigerian0.4%0.3%0.2%

Jamaican0.2%—0.4%

Mexican10.0%14.4%11.3%

Puerto Rican1.3%1.7%1.8%

Ecuadorian0.3%0.3%—

Guatemalan0.2%0.3%0.5%

Colombian0.2%0.3%0.4%

Asian Indian0.6%2.1%1.4%

Chinese0.4%1.0%1.3%

Filipino0.4%1.0%0.9%

Korean0.2%0.4%0.4%

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	IL SD 18	Illinois	United States
Median age	41.7	39.1	39.1
Age 18–24	8.7%	9.1%	9.2%
Age 65 and older	16.0%	16.9%	17.2%

Household economy

Measure	IL SD 18	Illinois	United States
Median household income	$90,813	$83,390	$84,427
Poverty rate	8.7%	11.8%	12.5%
Bachelor's degree or higher (25+)	42.7%	37.9%	35.6%

Housing and tenure

Measure	IL SD 18	Illinois	United States
Owner-occupied homes	77.0%	67.1%	65.2%
Renter-occupied homes	23.0%	32.9%	34.8%
Median home value	$298,500	$263,300	$332,700
Median gross rent (monthly)	$1,300	$1,274	$1,413
Renters paying 30%+ of income	51.8%	47.9%	51.1%
Vacant housing units	5.3%	7.7%	10.1%

Getting to work

Measure	IL SD 18	Illinois	United States
Mean commute	32.1 min	27.8 min	26.4 min
Commutes 60 minutes or more	14.2%	9.8%	8.6%
Drives alone to work	72.1%	65.9%	68.8%
Takes public transit	5.6%	5.8%	3.2%
Works from home	13.0%	15.9%	15.1%

Languages at home

Measure	IL SD 18	Illinois	United States
Speaks a non-English language at home	35.8%	24.1%	22.3%
Spanish	21.1%	14.0%	13.6%
Russian, Polish, or other Slavic	4.2%	2.5%	0.7%
Other Indo-European	3.4%	2.6%	2.0%
Chinese (incl. Mandarin & Cantonese)	1.4%	0.9%	1.1%

Religious landscape

Measure	IL SD 18	Illinois	United States
Catholic	—	24.2%	18.6%
Evangelical Protestant	—	11.7%	16.5%
Unclaimed / not counted	—	49.2%	51.5%

Origins and service

Measure	IL SD 18	Illinois	United States
Foreign-born residents	12.1%	14.7%	14.1%
Naturalized citizens	7.8%	7.7%	7.4%
Not U.S. citizens	4.3%	7.0%	6.8%
Veterans (18+)	4.5%	4.8%	6.2%
Income inequality (Gini)	0.444	0.481	0.483

American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations · American Community Survey 2024 — housing and tenure (B25003, B25002, B25077, B25064, B25070), commuting (B08013, B08303, B08301), origins and service (B05002, B21001, B19083).

President results by year

Modeled candidate-vote estimate on current district boundaries

HarrisDemocratic52.9%55,372TrumpRepublican44.5%46,590OtherAll other candidates2.6%2,759

D+8.4

Lead: 8,782
Total: 104,721
vs nation: D+9.9