Coverage contract

Coverage is not one number. Historical depth differs by office, geographic tier, source availability, and whether a value is natively reported or derived onto another boundary.

Presidential record

Scope	Supported contract
Complete public presidential record	1892–2024
Earlier returns	1876–1888 are partial and must be labeled partial
County and county-equivalent headline	3,143 units, including Connecticut planning regions
Sub-county presidential series	2004–2024 in the current product contract, with source/method flags by state and cycle

A route or schema may technically accept a year earlier than 1892. That does not make the earlier series complete.

Static place-page families

The shipped index counted 18,491 static place pages on July 20, 2026 across 13 place-page tiers. This is a generated release fact, not a permanent constant. Recalculate after every data bake with the repository page-count audit.

Family	Typical identifier	Coverage note
Nation	fixed key	National rollup
Region and division	slug	Census groupings
American Nation	slug	County-based cultural-region rollup
State	postal abbreviation or geography key	Statewide results and context
County	five-digit FIPS	Deepest complete presidential history
CBSA and CSA	Census metro code	Multi-county rollups
DMA	market code	Media-market rollup
Congressional district	state + district code	Current-boundary district profile
State-legislative upper/lower	chamber district code	Current-boundary district profile
City	Census place identifier	Promoted static city/place tier

The dynamic Census-place long tail is served on demand and is not included in the static-page count. User-created Places are also separate from the static corpus.

Office coverage

Office	Public depth
President	National/state/county complete product span 1892–2024; shorter sub-county span
US Senate	Modern contest archive at supported statewide/county/precinct depths by cycle
US House	Modern contest archive and district pages at supported depths
Governor	Recent statewide and available county/precinct contests
Presidential primaries	Supported recent Democratic primary cycles and geographies
State legislature and ballot measures	Not part of the general complete-coverage claim unless a specific page documents them

Consult the election-family index rather than assuming every office exists for every year.

Native, reconciled, and estimated evidence

Akashic distinguishes:

• Native reported result — published at the same geographic unit by the source.
• Exact rollup — sum of complete constituent reported units.
• Reconciled disaggregation — larger certified totals allocated across smaller geography using documented source geometry and forced to reconcile to the larger total.
• Estimated attribution — a named or local detail inferred where only a surviving aggregate exists.
• Missing — not available and not filled.

The interface and record flags are part of the coverage contract. Removing an estimate flag changes the meaning of the value.

Boundary changes

Historical results may be crosswalked to modern identifiers and boundaries. Important examples include renamed counties, Connecticut's transition to planning regions, current legislative districts, and custom shapes drawn over current geography.

A historical number attached to a current boundary is not necessarily the exact historical population footprint of that boundary. Use the methodology and provenance metadata when longitudinal boundary fidelity matters.

Demographic coverage

Demographic modules are sourced from their stated Census/ACS vintage and may differ by tier. Optional modules include CVAP, education, religion, voter registration, migration, and other specialized measures. Absence is not zero.

Freshness

Coverage dates and page counts can change with a release. For reproducible analysis, retain the Akashic data release or retrieval date and use the versioned manifest. This page is reviewed against the generated index and current product-state contract.