Files
republic-os/data/jurisdictions/us/states/ca/counties/sacramento/index.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

3.2 KiB
Raw Blame History

type, title, classification, fips, state, demographics, districts, sources, confidence, tags, timestamp
type title classification fips state demographics districts sources confidence tags timestamp
Jurisdiction Sacramento County, CA county 06067 CA
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 race_native hispanic bachelors_plus
1594006 364525 986111 243370 92175 12.5 59.02 6.71 534200 0.4443 4.57 708644 149365 284307 16002 385590 510269
to rel area_weight
us/states/ca/districts/07 in-district 0.653
to rel area_weight
us/states/ca/districts/06 in-district 0.2561
to rel area_weight
us/states/ca/districts/03 in-district 0.0885
to rel area_weight
us/states/ca/districts/senate/6 in-district 0.5575
to rel area_weight
us/states/ca/districts/senate/8 in-district 0.2742
to rel area_weight
us/states/ca/districts/senate/3 in-district 0.1682
to rel area_weight
us/states/ca/districts/house/9 in-district 0.5172
to rel area_weight
us/states/ca/districts/house/7 in-district 0.1627
to rel area_weight
us/states/ca/districts/house/6 in-district 0.1514
to rel area_weight
us/states/ca/districts/house/10 in-district 0.117
to rel area_weight
us/states/ca/districts/house/11 in-district 0.0516
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
ca
2026-07-03

Sacramento County, CA

County jurisdiction — 2 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 1594006
Under 18 364525
1864 986111
65+ 243370
Median household income 92175
Poverty rate 12.5
Homeownership rate 59.02
Unemployment rate 6.71
Median home value 534200
Gini index 0.4443
Vacancy rate 4.57
White 708644
Black 149365
Asian 284307
Native 16002
Hispanic/Latino 385590
Bachelor's or higher 510269

Districts

Source

  • demographics: Census ACS 2023
  • districts: PostGIS area-intersection over Census TIGER 2024 boundaries