Illinois State House District 89

State Legislative District Profile (Lower Chamber)

Overview

District ID
il-hd-089
State
Illinois
Chamber
Lower chamber
District Code
089
Land Area
2,320.3 sq mi
Water Area
44.7 sq mi

Boundary

Boundary of Illinois State House District 89

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Jo Daviess County600.92 sq mi25.9%100.0%
Ogle County563.88 sq mi24.3%74.3%
Carroll County445.41 sq mi19.2%100.0%
Stephenson County307.31 sq mi13.2%54.5%
DeKalb County177.00 sq mi7.6%28.0%
Winnebago County155.62 sq mi6.7%30.3%
Boone County70.21 sq mi3.0%25.0%

Showing all 7 counties

Places

PlaceOverlapShare of district landShare of place land
Lake Carroll CDP13.55 sq mi0.6%100.0%
The Galena Territory CDP11.01 sq mi0.5%100.0%
Byron city4.65 sq mi0.2%100.0%
Galena city4.49 sq mi0.2%97.2%
Davis Junction village4.20 sq mi0.2%100.0%
Apple Canyon Lake CDP3.72 sq mi0.2%100.0%
Rockford city3.07 sq mi0.1%4.7%
East Dubuque city2.74 sq mi0.1%95.4%
Lena village2.65 sq mi0.1%100.0%
Savanna city2.62 sq mi0.1%100.0%
Genoa city2.59 sq mi0.1%99.8%
Thomson village2.22 sq mi0.1%100.0%
Mount Carroll city2.00 sq mi0.1%100.0%
Winnebago village1.93 sq mi0.1%100.0%
Oregon city1.93 sq mi0.1%100.0%
Menominee village1.91 sq mi0.1%100.0%
Stockton village1.88 sq mi0.1%100.0%
Mount Morris village1.56 sq mi0.1%100.0%
Pecatonica village1.28 sq mi0.1%100.0%
Kirkland village1.23 sq mi0.1%98.7%
Monroe Center village1.21 sq mi0.1%100.0%
Hanover village1.12 sq mi<0.1%100.0%
Lanark city1.12 sq mi<0.1%100.0%
Warren village1.03 sq mi<0.1%100.0%
New Milford village0.99 sq mi<0.1%36.6%

Showing top 25 of 51 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
IL District 1670,96465.4%9.4%64.9%
IL District 1727,47025.3%3.6%30.0%
IL District 1110,1269.3%1.3%5.1%
IL District 146<0.1%<0.1%<0.1%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
81,563
Active Voters
77,357 (94.8%)

Party Registration

This state's voter file does not record party registration.

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202616,373 (20.1%)25 (0.0%)<10 (—)
2023–202458,812 (72.1%)3,956 (4.9%)11,629 (14.3%)
2021–202244,725 (54.8%)3,513 (4.3%)13,320 (16.3%)
2019–202053,138 (65.1%)8,311 (10.2%)9,606 (11.8%)
2017–201839,949 (49.0%)5,210 (6.4%)11,772 (14.4%)
2015–201643,687 (53.6%)7,890 (9.7%)18,341 (22.5%)
2013–201431,213 (38.3%)1,550 (1.9%)11,292 (13.8%)
2011–201235,989 (44.1%)1,639 (2.0%)12,163 (14.9%)

Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.

Browse the voter list for this district (premium access; sign-in required)

Source: Civitech voter file snapshot as of 12/15/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
107,832 (± 1,139)
Median Age
45.0
Median Household Income
$80,070 (± $1,841)
High School Graduate or Higher (age 25+)
92.1%
Bachelor's Degree or Higher (age 25+)
25.2%

Population by Age

GroupPeopleShare
Under 1822,76921.1%
18 to 6460,71556.3%
65 and over24,34822.6%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)6,9796.5%
White, not Hispanic95,21088.3%
Black, not Hispanic1,2381.1%
Asian, not Hispanic5320.5%
American Indian / Alaska Native, not Hispanic1210.1%
Native Hawaiian / Pacific Islander, not Hispanic160.0%
Some other race, not Hispanic5040.5%
Two or more races, not Hispanic3,2323.0%

Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.

Citizen Voting Age Population

Total Citizen Population
106,458
Citizen Voting Age Population (CVAP)
83,789

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic100,39894.3%
Hispanic6,0615.7%
White96,59090.7%
Black1,2351.2%
Asian4330.4%
American Indian / Alaska Native1220.1%
Native Hawaiian / Pacific Islander130.0%
Two or More Races1800.2%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic80,22895.8%
Hispanic3,5614.2%
White77,59492.6%
Black1,2791.5%
Asian4760.6%
American Indian / Alaska Native7971.0%
Native Hawaiian / Pacific Islander100.0%
Two or More Races850.1%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).