Illinois District 10

54 Middle of the pack

Less compact than 56% of other congressional districts.

188th least compact of 429 nationally, 15th of 17 in Illinois.

A score describes shape, not intent. Coastlines, rivers and the Voting Rights Act can all make a district irregular. How scores work

The three measures

Polsby-Popper: 0.28at least as compact as 60% of districts on this measure
Area compared with perimeter. Low for jagged or snaking edges.
Reock: 0.39at least as compact as 25% of districts on this measure
Area compared with the smallest circle around the district, counting only land. Low for stretched shapes.
Convex hull: 0.79at least as compact as 54% of districts on this measure
Area compared with a rubber band stretched around the district, counting only land. Low for bites and tentacles.

Each measure runs from 0 to 1, where 1 is a perfect circle or a shape with no dents.

The state's edge

42% of this district's border is the state's edge: a coastline, a national border or a state line. Mapmakers don't choose those lines. A ragged one, like a coastline or a river, lowers Polsby-Popper. Reock and convex hull count only the state's own land, so water and neighboring states don't count against them. More on the state's edge

Cities and towns

The largest places with people in this district, from the 2020 Census. A place split between districts shows how many of its residents live in this one.

Waukegan cityall 89,321 residents
Northbrook village32,452 of its 35,222 residents
Mundelein villageall 31,560 residents
Wheeling village31,161 of its 39,137 residents
North Chicago cityall 30,759 residents
Gurnee villageall 30,706 residents
Highland Park cityall 30,176 residents
Round Lake Beach villageall 27,252 residents
Vernon Hills villageall 26,850 residents
Zion cityall 24,655 residents

And 57 smaller places. 8% of this district's people live outside any city, town or named community. How places are counted

ZIP codes

41 ZIP codes have residents in this district. 16 of them are split with other districts. A percentage is the share of that ZIP code's 2020 residents who live here.

Show all 41 ZIP codes

60002
60015
60020
60022
60030 (99%)
60031
60034 (96%)
60035
60040
60041 (99%)
60043
60044
60045
60046
60047 (2%)
60048
60050 (15%)
60051 (56%)
60060 (95%)
60061
60062 (85%)
60064
60069
60070 (2%)
60071
60072
60073 (94%)
60075
60081
60083
60085
60087
60088
60089 (44%)
60090 (80%)
60091 (34%)
60093 (75%)
60096
60097 (99%)
60098 (2%)
60099

These are the Census Bureau's ZIP code areas, which match residential ZIP codes closely. ZIP codes used only for PO boxes or a single organization aren't included. How ZIP codes are matched

2024 presidential vote

Kamala Harris 61.2%, Donald Trump 38.8%

Shares of the votes for the two of them; other candidates are left out. Illinois used the same lines in 2024, so this is added up from precinct results. A precinct split between districts is divided by its House votes, so the figures are close estimates. Where the votes come from

U.S. House

Statewide results from Illinois for the November 3, 2026 election aren't available yet.

Where this comes from

Illinois's senators

Tammy Duckworth, Democrat
Richard J. Durbin, DemocratSeat on the November 3, 2026 ballot: results aren't available yet.

Senators are elected by the whole state, so district lines don't change who they are. Senators serving as of November 6, 2026. Senators elected in November 2026 take office January 3, 2027. Where this comes from

Where it sits in Illinois

Very compact (0 to 19)
Compact (20 to 39)
Middle (40 to 59)
Irregular (60 to 79)
Very irregular (80 to 100)

Spot a problem with this district? Email us about IL-10.