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Fabio 1beeaab2db Graph: national county↔district↔legislator authority layer

The first edges in the repo. Every US county now links to the districts it
sits in, weighted by area overlap, and every legislator links to the district
they represent — county → district → representative, traversable.

Data (PostGIS, no Atlas dependency — computed directly from geometry):
- data/county_district_edges.jsonl — 16,328 weighted edges. area_weight =
  ST_Area(ST_Intersection(county, district))/ST_Area(county) over ST_MakeValid
  Census TIGER 2024 geometries, overlaps <0.5% dropped. Uses area-intersection,
  NOT centroid-in-polygon, so urban districts that carve through counties
  (e.g. GA CD-5 / Atlanta across Clayton+DeKalb+Fulton) are captured, not
  silently dropped. Per-county weights sum to ~1.0 per district type.

build.py:
- ~6,896 new district nodes: 435 CD (ACS demographics where available; sparse
  for the 8 states missing from acs_cd) + 4,927 state-house + 1,897 state-senate
  (geometry-only). GEOID/number-keyed, stable.
- county index.md gains a `districts:` block (frontmatter) + a ## Districts
  section (body links, so link-integrity checks them).
- legislators + US House members gain `represents:` pointing at their district
  node; edge stored once on the person, inverse left to the view.
- schemas/jurisdiction: classification enum + chamber/districts fields.

Honest gaps (logged, not hidden): ID + NH have no state-house geometry, so
their house districts get nodes (represents resolves) but no county edges;
CD nodes for acs_cd-missing states are demographically sparse.

Deterministic (byte-identical rebuild); validate.py passes 26,617 records,
link-integrity clean (every district/represents link resolves).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-07-04 22:28:08 -04:00

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Raw Blame History

type, title, classification, state, district, demographics, sources, confidence, tags, timestamp

type

title

classification

state

district

demographics

sources

confidence

NV-01

Congressional district NV-01.

Demographics (ACS 2023)

Measure	Value
Population	792232
Under 18	187505
18–64	271522
65+	333205
Median household income	72138
Poverty rate	14.3
Homeownership rate	56.31
Unemployment rate	6.61
Median home value	429100
Gini index	0.4793
Vacancy rate	10.57
White	326083
Black	69757
Asian	67476
Hispanic/Latino	315664
Bachelor's or higher	145505

Source

demographics: Census ACS 2023

1.2 KiB Raw Blame History Unescape Escape

NV-01

Demographics (ACS 2023)

Source

1.2 KiB

Raw Blame History