Nominate.AI/United States/Ohio
OH

Ohio

88 counties, 8,868 precincts, and a statewide feed that is never the official record — certified May 26, re-armed for November 3.

Harvest active 88 / 88 counties8,868 precinctsPrimary certified · May 26New U.S. House map 7 state deltas tracked
County ledger · 88 counties → See the state deltas
Primary certified. General on a new map. All 88 county canvasses for the May 5 primary certified by May 26 and served as official. November 3 runs on the congressional map adopted October 31, 2025 — the engine's district geometry is already cut over.
Ask Ohio · 88 counties indexed
>

Which congressional map does Ohio vote on in November?

The 15-district map adopted unanimously by the Redistricting Commission on October 31, 2025, in force through 2031. The 2021 map expired after four years, and the new lines landed after the calendar issued — which is why congressional candidates filed March 6 while everyone else filed February 4.
redistricting record · 10-31-25SoS calendar · 2026

State deltas

Every state has hair. Here is Ohio's.

The rules that make this state different from the last one, what each breaks if you assume the national default, and how the engine resolves it.

Ohio · 7 deltas trackedLast reviewed Aug 10, 2026
Δ 01The congressional map is new this cycleNew this cycle
Breaks

The 2021 map expired after four years without bipartisan support, and its replacement landed October 31, 2025 — after the election calendar issued. Any district lookup built on 2024 geometry assigns voters to the wrong seat.

Resolved

District geometry is versioned with valid-from dates. 2024 results roll up on the old lines, 2026 on the new, and nothing is ever joined across map versions.

Δ 02The statewide feed is never the official recordStructural
Breaks

Ohio publishes a single election-night feed — the opposite of Michigan — but it is unofficial by statute. The official record is 88 county canvasses on 88 sites, certified up to three weeks later.

Resolved

The night feed is harvested for speed, county abstracts for truth. Each county's certification supersedes its night numbers row by row.

Δ 03Two counties run on charters, with three office slatesStructural
Breaks

86 counties elect three commissioners and eight row offices. Summit elects an executive, a council, and a consolidated fiscal officer. Cuyahoga elects an executive, an 11-member council, and exactly one row office — the prosecutor. A single county model generates seats that do not exist.

Resolved

The office slate is a property of the county record, read from its charter — never derived from the tier.

Δ 04City land can still be township landGeometry
Breaks

Municipal territory stays inside its township unless the city petitions out under ORC 503.07. Columbus withdrew; hundreds of municipalities did not. Whether an address carries township offices varies city by city.

Resolved

Township overlap is computed per municipality from TIGER containment and stored as a fact — never inferred from incorporation.

Δ 05Local offices are not on this year's ballotScheduling
Breaks

Township trustees, municipal councils, and school boards are elected in odd-numbered years by statute. A harvest scoped to 2026 misses every local seat in the state.

Resolved

Local seats are indexed on their own 2025 / 2027 cycle. The board shows them as standing offices with holders, not as vacancies.

Δ 06Candidate order rotates by precinctOrdering
Breaks

Name order rotates from precinct to precinct by statute, so ballot position carries no meaning and no two precincts read alike. Any parser that treats position as identity mis-assigns votes.

Resolved

Order is stored per precinct and never used as a signal. Contest identity comes from the office record, not the position.

Δ 07Party labels stop at the court of appealsNomenclature
Breaks

Since 2021, Supreme Court and appeals candidates carry party labels on the general ballot. Common pleas judges are nominated in partisan primaries but appear with no label at all — the ballot shows no party where a party exists.

Resolved

Nomination path and ballot presentation are separate fields on every judicial contest; neither is inferred from the other.

Federal to township

What Ohio actually elects.

The seats run bottom-heavy here too — but in 2026 the bottom of the ladder is quiet by statute. The engine holds those seats warm for 2027.

Federal
U.S. Senate special · 15 House districts
16
State
Governor ticket · 4 executives · 99 House · 17 Senate · 2 Supreme Court
~125
County
Commissioners + 8 row offices · two charter slates
88 counties
Cities & villages
253 cities · 673 villages
926
School districts
608 elected boards · 51 ESCs · 49 appointed JVSDs
~660
Special districts
Soil & water elected · park, library, conservancy appointed
952
Townships
3 trustees + fiscal officer · elected in odd years
1,308

Congressional map

Where those seats are.

The 15 congressional districts in force for the 2026 cycle — not necessarily the map this delegation was elected under. Ohio adopted ORC-20251031, first used in 2026.

Ohio · 15 congressional districts In force · ORC-20251031 · from 2026 Read 2026-08-15
Ohio: 15 congressional districts. Each district is selectable; the ledger carries the same data as text.
Locator map of the United States with Ohio highlighted.
OH · Ohio
Select a district
District
OH-01
OH-02
OH-03
OH-04
OH-05
OH-06
OH-07
OH-08
OH-09
OH-10
OH-11
OH-12
OH-13
OH-14
OH-15
cbdistricts GET /api/v1/layers/oh-congressional-2025/geojson · read 2026-08-15 Upstream source: Ohio Redistricting Commission / OGRIP — https://redistricting.ohio.gov/maps Not shown: Representative(0 of 15), Party(0 of 15), Population(0 of 15), Median income(0 of 15), Cook PVI(0 of 15). Returned for too few districts to tabulate — reported as a gap rather than a column of dashes. No demographics on this map, deliberately. ACS is published against the districts as they were drawn in 2023 and keyed by GEOID. Under this plan that key still resolves — to a different area. Joining on it would attach one district's population to another's shape and print it as fact, so the fetcher refuses the join rather than the map guessing. Geometry simplified to 0.00233° (~400 m) for display. Boundaries are illustrative at this resolution — not a legal description.
Congressional only — state chambers and counties sit underneath All district layers →

County ledger

Eighty-eight canvasses, one board.

The night feed covers the state in a single vehicle; certification arrives in five. Each county's official abstract decoded once, then decoded forever.

JSON feed · 3Vendor app · 3PDF / SOVC · 3County HTML · 2Scan only · 2
CountyFeed vehicle Precincts ContestsStatusLast read
FranklinJSON feed88854Verified2 hr
CuyahogaJSON feed96751Verified2 hr
HamiltonVendor app55647Verified5 hr
SummitVendor app47543Verified5 hr
MontgomeryCounty HTML36038Verified6 hr
LucasPDF / SOVC29835Verified8 hr
StarkCounty HTML28433Verified6 hr
ButlerVendor app26731Verified5 hr
LorainPDF / SOVC22729Needs review9 hr
DelawareJSON feed15824Verified2 hr
AthensPDF / SOVC4616Verified8 hr
VintonScan only129Journal entry11 hr
NobleScan only119Journal entry11 hr
Showing 13 of 88 88 on file