# Census
Routing hub for the decennial census cluster. **This page holds no content of its own** — every substantive claim lives on one of the pages below. It exists because the cluster spans five top-level folders and had no entry point, and because the bare term `Census` had nothing to resolve to.
The census is in this knowledge base for one reason: **it is the only constitutionally mandated count that converts people into political power.** Article I, § 2 requires an "actual Enumeration" every ten years, and that number sets House seats, [[Electoral College]] weights, and the population baseline every redistricting map is drawn against. Change who gets counted and you change the composition of the government without changing a single vote.
## The machinery
- **[[Census Bureau]]** — the [[Department of Commerce]] agency that runs the count and the ongoing surveys behind most federal economic and demographic statistics. Permanent since 1902.
- **[[Census Bureau Org Chart]]** — the same agency as a structure: the chain of command above it, the Director's seat and the 13 U.S.C. § 21 protections attached to it alone, the directorates, the six regions, the temporary decennial workforce, and the oversight layer that has been emptied since 2025.
- **[[How the Census Is Actually Counted]]** — the upstream process flow: address list, LUCA, Census Day, self-response, nonresponse followup, imputation, delivery. Why the count is an address operation before it is a people operation.
- **[[How the Census Apportions Congress]]** — the downstream process flow, state totals through certified seat counts. Start here.
- **[[Census Data Products Tree]]** — the outputs: the two products 13 U.S.C. § 141 actually obliges the Bureau to deliver and the dates it attaches no remedy to, the undeadlined tier that took the 2020 cycle three and a half more years, the continuous [[American Community Survey]] layer, and the 2026 Commerce order now reshaping all of it.
- **[[Census Data Access Crosswalk]]** — the routes in, priced: six rungs from a free browser tab to a secure facility at $15,000–$20,000 a year, the $100-versus-five-years penalty asymmetry in [[Title 13]] that sets all of them, and the wall at the end that [[Baldrige v. Shapiro]] built — no FOIA, no subpoena, not even a city's own address list.
- **[[How a Census Question Is Added or Removed]]** — how the form itself gets decided: the § 141(f) reports that notify Congress twice and consult it never, the Paperwork Reduction Act clearance that is the only real veto, the § 141(f)(3) "new circumstances" hatch the 2018 citizenship question used, and the September 2026 proposed rule that would set content by regulation for the first time.
- **[[Permanent Apportionment Act of 1929]]** — froze the House at 435 and made reapportionment automatic. The reason a growing country redistributes a fixed number of seats instead of adding them.
- **[[Congressional Apportionment Mathematics]]** — the method of equal proportions and why the formula is itself a political choice.
## The counts
- **[[2020 Census]]** — the twenty-fourth enumeration; COVID-disrupted, delivered late, moved seven seats.
- **[[2030 Census]]** — the twenty-fifth. Its design decisions are being made now, and its statutory deadlines are fixed by 13 U.S.C. § 141.
## The contested questions
- **[[Census Undercount]]** — every census misses people. The error is not random, which is the whole political problem.
- **[[Census Citizenship Question]]** — the recurring proposal to ask citizenship or immigration status of every resident.
- **[[Missouri v. Department of Commerce]]** — the live challenge, filed January 30, 2026, to counting residents without lawful status in the apportionment base.
- **[[Executive Order 13986]]** · **[[Executive Order 14148]]** — the revocation pair. Biden's first-day order fixed apportionment to total persons regardless of immigration status; Trump's first-day omnibus revocation struck it.
## Downstream
- **[[Gerrymandering]]** · **[[Redistricting Timeline 2025-2026]]** · **[[RedMap Project]]** — what gets done with the numbers.
- **[[One Person One Vote]]** — the doctrine the count is measured against.
- **[[Senate Homeland Security and Governmental Affairs Committee]]** — congressional jurisdiction over the census sits here, in its Disaster Management, District of Columbia, and Census subcommittee.
> [!note] Disambiguation
> **Apportionment** means two unrelated things in this vault. Congressional apportionment — dividing House seats among states — is this cluster. **[[Apportionment]]** in `Policy/Budget/Process/` is the budget-execution term for how the Office of Management and Budget releases appropriated funds to agencies, and is the subject of the impoundment fights. They share a word and nothing else.
## See Also
- [[Foundations Hub]] · [[01 Maps of Content Hub]]