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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

3.4 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

Calcasieu Parish, LA

county

22019

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
207088	51633	122136	33319	67564	17.38	72.78	5.44	217000	0.4826	18.39	136057	48488	3091	609	11101	46290

to	rel	area_weight
us/states/la/districts/04	in-district	0.7202

to	rel	area_weight
us/states/la/districts/03	in-district	0.2782

to	rel	area_weight
us/states/la/districts/senate/30	in-district	0.4445

to	rel	area_weight
us/states/la/districts/senate/27	in-district	0.2798

to	rel	area_weight
us/states/la/districts/senate/25	in-district	0.275

to	rel	area_weight
us/states/la/districts/house/32	in-district	0.3291

to	rel	area_weight
us/states/la/districts/house/33	in-district	0.2626

to	rel	area_weight
us/states/la/districts/house/37	in-district	0.1298

to	rel	area_weight
us/states/la/districts/house/47	in-district	0.1174

to	rel	area_weight
us/states/la/districts/house/35	in-district	0.1007

to	rel	area_weight
us/states/la/districts/house/34	in-district	0.0325

to	rel	area_weight
us/states/la/districts/house/36	in-district	0.0271

field	source
demographics	Census ACS 2023

field	source
districts	PostGIS area-intersection over Census TIGER 2024 boundaries

official

jurisdiction

county

2026-07-03

Calcasieu Parish, LA

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	207088
Under 18	51633
18–64	122136
65+	33319
Median household income	67564
Poverty rate	17.38
Homeownership rate	72.78
Unemployment rate	5.44
Median home value	217000
Gini index	0.4826
Vacancy rate	18.39
White	136057
Black	48488
Asian	3091
Native	609
Hispanic/Latino	11101
Bachelor's or higher	46290

Districts

LA-04 — 72% (congressional)
LA-03 — 28% (congressional)
LA Senate District 30 — 44% (state senate)
LA Senate District 27 — 28% (state senate)
LA Senate District 25 — 28% (state senate)
LA House District 32 — 33% (state house)
LA House District 33 — 26% (state house)
LA House District 37 — 13% (state house)
LA House District 47 — 12% (state house)
LA House District 35 — 10% (state house)
LA House District 34 — 3% (state house)
LA House District 36 — 3% (state house)

Source

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

3.4 KiB Raw Blame History Unescape Escape

Calcasieu Parish, LA

Demographics (ACS 2023)

Districts

Source

3.4 KiB

Raw Blame History