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republic-os/data/jurisdictions/us/states/ca/counties/los-angeles/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

9.3 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 Los Angeles County, CA county 06037 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
9808667 2019140 6301827 1487700 90112 13.74 45.9 7.27 834200 0.4978 6.41 3025998 751615 1486983 141639 4752274 3392151
to rel area_weight
us/states/ca/districts/27 in-district 0.3231
to rel area_weight
us/states/ca/districts/28 in-district 0.1241
to rel area_weight
us/states/ca/districts/23 in-district 0.078
to rel area_weight
us/states/ca/districts/32 in-district 0.062
to rel area_weight
us/states/ca/districts/42 in-district 0.0458
to rel area_weight
us/states/ca/districts/31 in-district 0.0443
to rel area_weight
us/states/ca/districts/30 in-district 0.0381
to rel area_weight
us/states/ca/districts/38 in-district 0.03
to rel area_weight
us/states/ca/districts/29 in-district 0.0272
to rel area_weight
us/states/ca/districts/36 in-district 0.0206
to rel area_weight
us/states/ca/districts/44 in-district 0.0202
to rel area_weight
us/states/ca/districts/43 in-district 0.0151
to rel area_weight
us/states/ca/districts/37 in-district 0.011
to rel area_weight
us/states/ca/districts/34 in-district 0.0105
to rel area_weight
us/states/ca/districts/26 in-district 0.006
to rel area_weight
us/states/ca/districts/senate/23 in-district 0.4101
to rel area_weight
us/states/ca/districts/senate/25 in-district 0.1237
to rel area_weight
us/states/ca/districts/senate/24 in-district 0.0689
to rel area_weight
us/states/ca/districts/senate/33 in-district 0.0497
to rel area_weight
us/states/ca/districts/senate/20 in-district 0.0469
to rel area_weight
us/states/ca/districts/senate/22 in-district 0.0423
to rel area_weight
us/states/ca/districts/senate/30 in-district 0.0364
to rel area_weight
us/states/ca/districts/senate/27 in-district 0.0257
to rel area_weight
us/states/ca/districts/senate/35 in-district 0.0236
to rel area_weight
us/states/ca/districts/senate/26 in-district 0.0168
to rel area_weight
us/states/ca/districts/senate/28 in-district 0.015
to rel area_weight
us/states/ca/districts/house/34 in-district 0.2128
to rel area_weight
us/states/ca/districts/house/39 in-district 0.1456
to rel area_weight
us/states/ca/districts/house/41 in-district 0.1236
to rel area_weight
us/states/ca/districts/house/40 in-district 0.0824
to rel area_weight
us/states/ca/districts/house/42 in-district 0.0447
to rel area_weight
us/states/ca/districts/house/69 in-district 0.0412
to rel area_weight
us/states/ca/districts/house/56 in-district 0.0253
to rel area_weight
us/states/ca/districts/house/44 in-district 0.0211
to rel area_weight
us/states/ca/districts/house/48 in-district 0.0182
to rel area_weight
us/states/ca/districts/house/66 in-district 0.0159
to rel area_weight
us/states/ca/districts/house/46 in-district 0.0156
to rel area_weight
us/states/ca/districts/house/65 in-district 0.0132
to rel area_weight
us/states/ca/districts/house/49 in-district 0.0123
to rel area_weight
us/states/ca/districts/house/51 in-district 0.0119
to rel area_weight
us/states/ca/districts/house/43 in-district 0.0111
to rel area_weight
us/states/ca/districts/house/64 in-district 0.0109
to rel area_weight
us/states/ca/districts/house/61 in-district 0.0098
to rel area_weight
us/states/ca/districts/house/52 in-district 0.0093
to rel area_weight
us/states/ca/districts/house/54 in-district 0.0086
to rel area_weight
us/states/ca/districts/house/55 in-district 0.0084
to rel area_weight
us/states/ca/districts/house/62 in-district 0.0079
to rel area_weight
us/states/ca/districts/house/57 in-district 0.0058
to rel area_weight
us/states/ca/districts/house/53 in-district 0.0051
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
ca
2026-07-03

Los Angeles County, CA

County jurisdiction — 26 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 9808667
Under 18 2019140
18–64 6301827
65+ 1487700
Median household income 90112
Poverty rate 13.74
Homeownership rate 45.9
Unemployment rate 7.27
Median home value 834200
Gini index 0.4978
Vacancy rate 6.41
White 3025998
Black 751615
Asian 1486983
Native 141639
Hispanic/Latino 4752274
Bachelor's or higher 3392151

Districts

Source

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