New York sources & data layers

Every layer in districtry New York, 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: September 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.

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

39 layers — 15 political and legislative, 6 public safety, 8 schools, 10 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 15 layers

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

LayerWhat it answersBoundary sourceWho it namesWhere it applies
NY Supreme Court Judicial Districtjudicial-district Which of New York's thirteen Supreme Court judicial districts covers this address, and which counties make it up. No roster is joined; the card links the court system rather than naming justices from an unverifiable list. All of New York State.
County Board Supervisorcounty-supervisor Who sits on the county board for the town or city containing the point. New York counties come in two forms. A county that ELECTS A LEGISLATURE from districts is in the county-legislature layer, which needs those districts drawn first. A county governed by a BOARD OF SUPERVISORS seats each town's and city's own supervisor, so the county board seat IS the town or city and there is no separate district to draw. A town or city may hold more than one seat, which New York County Law allows, and the card names everyone who holds one. Each supervisor as the county's own board-of-supervisors page prints them, scraped weekly, with the party, telephone and mailing address where that county publishes one. Saratoga County publishes names only. The builder refuses to write unless the number of seats matches the count the county's own page states and every town and city of the county is seated. Delaware, Saratoga, Schoharie and Warren Counties. Nine of New York's 57 counties outside New York City say on their own front page that their board is a board of supervisors; the other five are not in this layer yet, and each carries a measured reason in the scraper rather than being left to re-probe. A county that elects a legislature is never in it, and the five boroughs never will be, because New York City absorbed its counties' government.
County Legislature Districtcounty-legislature Which county-legislature district contains the point, who represents it, and the district's own 2020 census population. Only counties that elect a legislature from single-member districts are in this layer; a New York county governed by a board of supervisors seats the towns' own supervisors, so there is no county district to draw and no card here. Each district's legislator, party, e-mail, committees and — for the nine who publish one rather than the Legislature's switchboard — a direct telephone, scraped weekly from Tompkins County's own Legislature page and its own contact sheet. The boundary layer carries a member column and it is deliberately not read: the weekly run compares it and reports a disagreement instead. Tompkins County. The other 61 counties are not in this layer yet, and the five boroughs never will be — New York City absorbed its counties' government, so they have no legislature to answer for.
Tribal Governmenttribal-government Whether this address is on tribal land, and which nation's government answers for it — New York has 11 such areas across 8 nations, all outside New York City. The council, from each nation's own published council page, read weekly by scripts/tribal_council_scraper.py and dated on the card: the Seneca Nation and the Saint Regis Mohawk Tribe today. For the other six nations the card says why it names nobody. The government, its seat and its website come from the Bureau of Indian Affairs' tribal leaders directory (data/bia-tribal-governments.json), except for the Poospatuck (Unkechauge) Indian Nation, which the Bureau does not list and which is named from New York's Indian Law, Article 10; the land is joined to the government by this project's own data/tribal-government-join.json. New York State outside the five boroughs — 11 areas across 8 nations. Most points in the state are on no tribal land.
Borough Presidentborough-president Which Borough President's office covers this address. Borough Presidents ship with the app from the city's own directory. New York City.
District Attorneydistrict-attorney Which District Attorney's office covers this address. District Attorneys ship with the app from the city's own directory. New York City.
U.S. House Districtcongress Which U.S. House district covers this address, and who represents it. Members come from the unitedstates/congress-legislators dataset, refreshed weekly and reviewed before it ships. All of New York State. The shipped file carries all 26 districts, not a city clip.
Civil Court (Municipal Court) Districtmunicipal-court Which Civil (Municipal) Court district covers this address. No roster is joined; the card links the court rather than naming judges. New York City.
NY State Senate Districtstate-senate Which New York State Senate district covers this address, and who holds the seat. Senators come from the NY Senate's Open Legislation API, refreshed weekly and reviewed before they ship; district offices are enriched from OpenStates where it publishes them. All of New York State. The shipped file carries all 63 districts, not a city clip.
City Council DistrictcouncilWhat Council district am I in? Which City Council district covers this address, and who represents it. Council Members are re-scraped weekly from council.nyc.gov's own district directory and reviewed before they ship. New York City.
Community District / Boardcommunity-districtWhat community board am I in? Which community district covers this address, and which community board advises on it. Board contact details come from the city's own community board dataset; individual members are not named. New York City.
Election Districtelection-district Which election district this address votes in. No roster: an election district has no officeholder. New York City.
NY State Assembly Districtstate-assembly Which New York State Assembly district covers this address, and who holds the seat. Assemblymembers come from the NY Senate's Open Legislation API, refreshed weekly and reviewed before they ship. All of New York State. The shipped file carries all 150 districts, not a city clip.
Early Voting Siteearly-voting The nearest early-voting sites to this point for the current election, anywhere in New York State. It does not say which one is yours. No roster is joined: a voting site has no officeholder. Which site a voter may use is set by their registration rather than by distance, and hours change per election, so the card links the state Board of Elections' own lookup. All of New York State.
Election Day Poll Sitepolling-place The Election Day poll sites nearest this point, by straight-line distance, anywhere in New York State. It does not say which one is yours. No roster is joined. A poll site has no officeholder. Every New York voter is assigned one poll site by their election district, and nothing published joins an election district to a poll site, so the card links the state Board of Elections' own lookup instead of naming a site as yours. All of New York State.

Public safety 6 layers

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

LayerWhat it answersBoundary sourceWho it namesWhere it applies
Fire Districtfire-district Which fire district contains the point. Sullivan County's fire districts cover the whole county, so a point there is always in one; a point a few metres outside is on the seam where the state's drawing of the county and the county's own drawing disagree. No roster is joined. A New York fire district is governed by five elected fire commissioners and a fire protection district by the town board, and nothing Sullivan County or the state publishes names either, so the card states the rule and names nobody. Sullivan County. The other 61 counties are not in this layer yet.
FDNY Battalionfire-battalion Which FDNY battalion covers this address. No roster is joined; a battalion has no single officeholder to name. New York City.
NYPD Sectorpolice-sector Which NYPD sector — the patrol area inside a precinct — covers this address. No roster is joined; a sector has no separate commander to name. New York City.
NYPD Precinctpolice-precinct Which NYPD precinct covers this address, and who commands it. Commanding officers, station house addresses and precinct desk telephones are re-scraped weekly from the NYPD's own precinct pages. Where the NYPD publishes none, the card says the precinct is listed without a commander rather than guessing. New York City.
Police Stationpolice-station The nearest NYPD precinct station houses to this point, by straight-line distance. No roster is joined; the card gives each station house, its address and its desk telephone, re-read weekly from NYPD's precinct pages. New York City.
Fire Stationfire-station The nearest fire stations to this point, by straight-line distance, anywhere in New York State. No roster is joined — a firehouse has no single officeholder to name. The state's layer carries a telephone number for most stations and the card prints it beside the address. All of New York State.

Schools 8 layers

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

LayerWhat it answersBoundary sourceWho it namesWhere it applies
Central High School Districtnys-central-hs-district Which central high school district contains the point, where one does. Three of these exist, all in Nassau County: eleven ordinary districts run their own elementary schools and send their students to one of these for high school, so a reader there is in two school districts at once and each elects its own board. No roster is joined. A central high school district elects its own board and New York publishes no statewide list of school-board members, so the card names nobody and links the district instead. The three areas of Nassau County these districts cover. The layer hides everywhere else, because it answers nowhere else.
School Districtnys-school-district Which New York school district contains the point. Outside New York City this is the district the point sits in, which elects its own board; inside the city the Community School District layer answers instead. Eleven districts on Long Island sit inside three central high school districts, which run the high schools for all of them; this layer names the smaller district and the Central High School District layer names the larger. No roster is joined. New York's school boards are elected locally and no statewide list of their members has been found, so the card names nobody. All of New York State.
Community School Districtschool-district Which community school district this address is in. Superintendents are appointed rather than elected; the card links the district rather than naming one from an unverifiable list. New York City.
Community Education Councilcec Which Community Education Council serves this address. No roster ships. No CEC membership list is published in a form this app can verify, so the card links the council rather than naming people it cannot check. New York City.
High School Zonehs-zone Which zoned high school serves this address, where one does. No roster; most NYC high schools admit by application citywide rather than by zone, and the card says so where no zone applies. New York City.
Middle School Zonems-zone Which zoned middle school serves this address, where one does. No roster; the card links MySchools, which is what decides a placement. New York City.
Elementary School Zonees-zone Which zoned elementary school serves this address. No roster; the card links MySchools, which is what decides a placement. New York City.
Schoolschool-site The nearest school sites to this point, by straight-line distance, anywhere in New York State. No roster is joined; the card names the school and its address. All of New York State.

Geography & amenities 10 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 of New York's 62 counties contains the point, and its population. Inside New York City the five counties are the boroughs and have no county government of their own, which the card says rather than implying a county board that does not exist. No roster is joined on this layer. New York's counties are governed in three different forms and no statewide list of who holds those seats has been found, so the county card names nobody; where a county elects a legislature from districts and this project has built it, the county-legislature layer names its members district by district. All of New York State.
Library Districtlibrary-district Which library district contains the point, where one does. Only two are published in Sullivan County, covering about a fifth of it, so a point in the county is more often outside a library district than inside one. No roster is joined. A New York library district's trustees are elected by the voters of the district, and nothing Sullivan County or the state publishes names them. Sullivan County. The other 61 counties are not in this layer yet.
City or Townmunicipality Which city or town contains the point. Cities and towns together cover every part of New York's land with no gaps and no overlaps; a point out on Lake Erie, Lake Ontario or Long Island Sound is in neither. No roster is joined. New York has 62 cities and 933 towns and no statewide roster of their officials has been found; naming some and not others would read as a claim about the rest. All of New York State. Inside New York City this layer says New York, because the city is one row; the borough layer is the finer answer there.
Villagevillage Which village, if any, contains the point. A village is a government inside one or more towns, so a village address is also a town address. No roster is joined, for the same reason as the city and town layer. All of New York State.
Borough / Countyborough Which borough — and therefore which county — this address is in. The card names the borough's County Clerk, who is appointed rather than elected. Two publishers feed that one row: the state courts' own directory, which names the clerk in two boroughs and has been behind a managed challenge since 2026-09-26, and the City of New York's own staff directory — the Green Book — which fills the other three and is named on the card where it does. The Borough President and the District Attorney are elected and have cards of their own. New York City.
ZIP Codenys-zip-code The Census Bureau's ZIP Code Tabulation Area covering this point, anywhere in New York State outside New York City. No roster is joined, and none is missing: nobody is elected from a ZIP code. The card states what the boundary is — the Census Bureau's areal approximation of USPS delivery routes, not the postal boundary itself. New York State outside New York City. Inside the city the MODZCTA layer answers, because the two are different tilings of the same ground and both would answer one point.
ZIP Code (MODZCTA)zip-code Which Modified ZIP Code Tabulation Area contains this address. No roster: a ZIP code has no officeholder. New York City.
Neighborhood (NTA)neighborhood Which Neighborhood Tabulation Area contains this address. No roster: an NTA is a statistical area, and its name is not always the one a listing or a local would use. New York City.
Post Officepost-office The nearest post offices to this point, by straight-line distance, anywhere in New York State. No roster is joined; the card names the facility and its address. All of New York State.
Librarylibrary The nearest public libraries to this point, by straight-line distance. No roster is joined. A library has no elected officeholder, and neither publisher carries a telephone number, which is a gap at the source rather than something the card withholds. All of New York State.