Indiana / IN-01
Indiana District 1
Score
Irregularity score 21 CompactLess compact than 15% of other congressional districts.
366th least compact of 429 nationally, 4th of 9 in Indiana.
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
- 0.43at least as compact as 90% of districts on this measure
Area compared with perimeter. Low for jagged or snaking edges.
- Reock
- 0.55at least as compact as 68% of districts on this measure
Area compared with the smallest circle around the district, counting only land. Low for stretched shapes.
- Convex hull
- 0.86at least as compact as 80% 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
53% 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.
- Hammond cityall 77,879 residents
- Gary cityall 69,093 residents
- Portage cityall 37,926 residents
- Merrillville townall 36,444 residents
- Valparaiso cityall 34,151 residents
- Crown Point cityall 33,899 residents
- Michigan City cityall 32,075 residents
- Hobart cityall 29,752 residents
- Schererville townall 29,646 residents
- East Chicago cityall 26,370 residents
And 35 smaller places. 16% of this district's people live outside any city, town or named community. How places are counted
ZIP codes
42 ZIP codes have residents in this district. 6 of them are split with other districts. A percentage is the share of that ZIP code's 2020 residents who live here.
Show all 42 ZIP codes
- 46301
- 46302
- 46303
- 46304
- 46307
- 46311
- 46312
- 46319
- 46320
- 46321
- 46322
- 46323
- 46324
- 46327
- 46341 (99%)
- 46342
- 46347
- 46348 (1%)
- 46350 (72%)
- 46356
- 46360
- 46368
- 46373
- 46375
- 46376
- 46377
- 46382 (3%)
- 46383
- 46385
- 46390 (1%)
- 46391 (98%)
- 46393
- 46394
- 46402
- 46403
- 46404
- 46405
- 46406
- 46407
- 46408
- 46409
- 46410
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
Shares of the votes for the two of them; other candidates are left out. Indiana 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
Frank J. Mrvan, Democrat
Elected November 3, 2026, takes office January 3, 2027.
Unofficial results from the Indiana Election Division, checked November 6, 2026. A race shows a winner once news decision desks have called it. Results become official when the state certifies them. Where this comes from
Indiana's senators
- Jim Banks, Republican
- Todd Young, Republican
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 Indiana
- Very compact (0 to 19)
- Compact (20 to 39)
- Middle (40 to 59)
- Irregular (60 to 79)
- Very irregular (80 to 100)
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