Indiana sources & data layers

Every layer in districtry Indiana, and exactly where its data comes from.

← Back to the map 🧩 What data is missing?

This app is a reader over other people's data. It draws no boundary of its own and names no officeholder it cannot cite, so the useful question about any answer it gives is who published this, and when. That is what this page is for: the publishers the app credits as a whole, then one row per layer naming the source behind that layer specifically.

Not for legal or official use. Boundary and roster data come from public sources that explicitly disclaim legal precision. Always confirm district assignments and officeholders with the relevant government office before relying on them for anything official.

Data last verified: October 11, 2026

Where a source publishes nothing, the app says so rather than guessing — the missing-data panel on the map is the standing list of what nobody publishes yet, and what would close each gap.

This page says where each answer comes from today, layer by layer: the publisher its boundary is drawn from, where the names on its card come from, and the ground it answers on.

Who publishes the data

The upstream publishers this app depends on, across all layers. Per-layer provenance is in the matrix below.

The layer matrix

17 layers — 6 political and legislative, 2 public safety, 2 schools, 7 geography and amenities. Each row names the publisher the boundary comes from, where the names on the card come from, and the ground the layer actually answers on — outside that ground the layer hides itself rather than guessing.

Political & legislative 6 layers

Districts that elect somebody — from your ward to your seat in Congress.

LayerWhat it answersBoundary sourceWho it namesWhere it applies
Court of Appeals Districtin-court-of-appeals The Court of Appeals district covering the point, whose three judges stand for retention in that district alone. No judge is named yet; recorded as gap in-court-of-appeals-judges. The card says three of the court's fifteen judges come from the district and stand for retention only there. Indiana — statewide, all 92 counties.
U.S. Houseus-house The U.S. House district covering the point, and the representative holding it. congress-roster.json, rebuilt weekly by CI from the public-domain unitedstates/congress-legislators dataset — including each member's district office and Washington office. Indiana — statewide, all 9 districts.
Indiana Senate Districtin-senate The Indiana Senate district covering the point. NO ROSTER SHIPS IN THIS CHANGE, and the card says so: it names the district and links the General Assembly's own member directory rather than naming a senator this instance has not fetched. Recorded as gap in-general-assembly-roster; the Open States export lands in its own change with its own weekly workflow, the route every other instance took. Indiana — statewide, all 50 districts.
Indiana House Districtin-house The Indiana House district covering the point. NO ROSTER SHIPS IN THIS CHANGE — the same gap as the Senate layer (in-general-assembly-roster); the card names the district and links the chamber's own directory. Indiana — statewide, all 100 districts.
County Council Districtcounty-council Which county council district contains the point, and who won that district's seat and the county's three at-large seats; in Marion County, the Indianapolis City-County Council district and its member. The district's council member and the county's at-large members, each the winner of that seat's most recent election in the Indiana Election Division's certified results (in-county-councils.json; for Marion County, the 2023 municipal general in in-city-officials.json). A winner is not a sitting member: Indiana fills a vacancy by party caucus, and the card says so. Boone County's District 3 seat is titled "Dist 36" in the results, so its card does not guess which member holds it. Indiana — the 55 counties whose council districts the state's mapping office publishes in full. In the other 37 the card says the lines are not published, and the County card lists every council member.
Tribal Governmenttribal-government Whether this address is on tribal land, and which nation's government answers for it — Indiana has one such area, the Pokagon Band of Potawatomi's. The council, from the Pokagon Band's own published council page, read weekly by scripts/tribal_council_scraper.py and dated on the card — the same read the Michigan card uses. The government, its seat and its website come from the Bureau of Indian Affairs' tribal leaders directory (data/bia-tribal-governments.json); the land is joined to the government by this project's own data/tribal-government-join.json. Indiana — one area, a piece of the Pokagon Band's trust land near South Bend. Almost every point in the state is on no tribal land.

Public safety 2 layers

Who answers a call at this address, and where they answer it from.

LayerWhat it answersBoundary sourceWho it namesWhere it applies
Police Stationpolice-station The three nearest police station BUILDINGS to the point, by straight-line distance, with each one's address. NO OFFICEHOLDER, AND NONE IS MISSING: a police station is a facility, not an elected district. Indiana — plus the border strip its envelope necessarily includes (449 of the 650 are in Indiana; the rest Illinois 123, Kentucky 75, Ohio 2 and Michigan 1, measured 2026-09-29 on the app's own metro_bbox envelope).
Fire & EMS Stationfire-station The three nearest fire or EMS station BUILDINGS to the point, by straight-line distance, with each one's address. NO OFFICEHOLDER, AND NONE IS MISSING: a station is a facility. Indiana's fire and EMS RESPONSE AREAS are a different thing, filed by the state's NG911 programme, and ship as their own layers in a later change. Indiana — plus the border strip its envelope necessarily includes (1,245 of the 1,758 are in Indiana; the rest Illinois 304, Kentucky 201 and Ohio 8, measured 2026-09-29 on the app's own metro_bbox envelope).

Schools 2 layers

The district, the attendance zone, and the schools nearest the point.

LayerWhat it answersBoundary sourceWho it namesWhere it applies
School Districtschool-district-unified The school district covering the point. NO OFFICEHOLDER, AND THE CARD NAMES THE DISTRICT ONLY. Indiana school board members are elected — the Election Division certifies a School Board Member office category, whose own description says most members are elected and some are appointed — and the certified returns name 742 of them, but this change ships no roster and no districted geometry exists statewide, so nobody is named. Recorded as gap in-school-board-members. Indiana — statewide. The 291 unified districts are the whole of the state's school-district fabric.
School Board Districtschool-board-district The district the Indianapolis Public Schools board elects a member from. Everywhere else in Indiana the card says this map draws no other board's districts yet. NO NAMES YET. No list of the Indianapolis Public Schools board's members has been read, so the card names no one rather than guessing; recorded as gap in-school-board-members. Indianapolis Public Schools, in Marion County. The 2022 and 2024 results point to about forty other Indiana boards electing some members by district, and no statewide map of their districts is published (gap in-school-board-districts).

Geography & amenities 7 layers

The boundaries that place an address without electing anyone, plus the nearest public services.

LayerWhat it answersBoundary sourceWho it namesWhere it applies
Countycounty Which county contains the point, and who won each seat on its board of commissioners and its county council. Every commissioner and county council member in 91 of the 92 counties, each the winner of that seat's most recent election in the Indiana Election Division's certified results (the 2022 and 2024 generals), dated to that election and rebuilt weekly by in/scripts/build_in_county_officials.py. A winner is not a sitting member: Indiana fills a vacancy by party caucus, which no result records, and the card says so. Every seat in the county is listed because neither body's district lines are drawn yet. Marion County's legislative body is the Indianapolis City-County Council, so its card names the council's 25 members and the Mayor of Indianapolis from the 2023 municipal general instead (in/scripts/build_in_city_officials.py). Indiana — statewide, all 92 counties.
ZIP Codezip-code The ZIP Code Tabulation Area covering the point — the Census Bureau's areal approximation of the USPS delivery routes sharing a ZIP code, not a postal boundary. NO OFFICEHOLDER, AND NONE IS MISSING: a ZIP code is a mail-routing convenience, not a unit of government, so nobody is elected from one. Indiana — the 882 ZCTAs that intersect the state. A point outside Indiana gets the layer's own empty note rather than a ZIP code.
Townshipcounty-subdivision The civil township covering the point — in Indiana a real unit of government, not a Census construct. The township trustee and the three-member township board, as elected at the November 2022 general, from the Indiana Election Division's certified results (in-township-officials.json): 973 trustees and 921 boards of the 1,004 civil townships. A township the results do not cover, including Marion County's five-member boards, says so on the card, and the names are election winners rather than a roster the township keeps. Recorded as gap in-township-officers. Indiana — statewide. The card distinguishes a civil township from the eight records that are Census bookkeeping rather than a government.
Conservancy Districtconservancy-district The conservancy district or districts covering the point — special districts a circuit court sets up, when property owners ask, to deal with flooding, drainage, sewers, water supply or a lake — and who sits on each one's board. Each board as the district reported it to the Department of Natural Resources for its 2026 directory, read by in/scripts/build_in_conservancy_directors.py: 465 people named and 6 seats vacant across 93 districts, with the telephone and e-mail the directory prints beside each person and each district's own (on the copy read 2026-10-17, 145 people with a telephone and 181 with an e-mail, 86 districts with a telephone and 83 with an e-mail). A value printed for two or more people, or equal to the district's own, is the district's and is not shown on a person. Six districts sent no list, and one on the map (Geist Reservoir) is not in the directory; the card says so for each rather than naming anyone. Staff a district hires (attorneys, engineers, managers, operators) are not shown, and the home towns and addresses the directory gives are never carried. Indiana — wherever a district has been set up; most of the state is in none.
Voting Precinctvoting-precinct The voting precinct containing the point — where a reader votes and how their ballots are reported. NO OFFICEHOLDER, and none is missing. A precinct elects nobody — it is an election-administration unit, not a district with a representative — so the card says that rather than leaving a reader to wonder which name is absent. Indiana — statewide.
City or Townmunicipality The incorporated city or town covering the point, if any — and which of the two it is, because in Indiana that changes what governs the point. The mayor and council of all 39 places over 25,000 people. For 36 of them (all 33 cities and three of six towns) each name is the winner of that seat's most recent election in the Indiana Election Division's certified results (the 2023 municipal general), dated to that election; a winner is not a sitting member, because Indiana fills a vacancy by party caucus, and the card says so. Plainfield, Brownsburg and Schererville are towns where an uncontested seat is on no ballot, so their councils are read from each town's own council page and dated to the read. Rebuilt weekly by in/scripts/build_in_city_officials.py. Smaller places are not named yet. Recorded as gap in-municipal-officeholders. Indiana — statewide, all 566 incorporated places. 'Indianapolis city (balance)' is the Census record for the part of the consolidated Indianapolis–Marion County government outside its included towns, not a separate municipality.
Post Officepost-office The three nearest post offices to the point, by straight-line distance, with each one's address. NO OFFICEHOLDER, AND NONE IS MISSING: a post office is a federal facility, not an elected district. Indiana — plus the border strip its envelope necessarily includes (716 of the 1,012 are in Indiana; the rest Illinois 182, Kentucky 107 and Ohio 5, plus one record each the publisher places in Maine and Iowa, measured 2026-09-29 on the app's own metro_bbox envelope).