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republic-os/data/jurisdictions/us/states/ca/districts/06.md
T
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

1.2 KiB
Raw Blame History

type, title, classification, state, district, demographics, sources, confidence, tags, timestamp
type title classification state district demographics sources confidence tags timestamp
Jurisdiction CA-06 congressional-district CA CA-06
population population_under_18 population_18_64 population_65_plus median_household_income poverty_rate homeownership_rate unemployment_rate median_home_value gini_index vacancy_rate race_white race_black race_asian hispanic bachelors_plus
761692 191979 278093 291620 87640 12.95 57.75 7.28 499100 0.4429 5.43 367661 69817 103335 181644 171997
field source
demographics Census ACS 2023
official
jurisdiction
congressional-district
ca
2026-07-03

CA-06

Congressional district CA-06.

Demographics (ACS 2023)

Measure Value
Population 761692
Under 18 191979
1864 278093
65+ 291620
Median household income 87640
Poverty rate 12.95
Homeownership rate 57.75
Unemployment rate 7.28
Median home value 499100
Gini index 0.4429
Vacancy rate 5.43
White 367661
Black 69817
Asian 103335
Hispanic/Latino 181644
Bachelor's or higher 171997

Source

  • demographics: Census ACS 2023