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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

3.9 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

Westchester County, NY

county

36119

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
999677	212470	605678	181529	118976	9.01	61.84	6.05	663200	0.5383	5.45	520512	136191	62523	5261	273730	559893

to	rel	area_weight
us/states/ny/districts/17	in-district	0.6904

to	rel	area_weight
us/states/ny/districts/16	in-district	0.2659

to	rel	area_weight
us/states/ny/districts/senate/40	in-district	0.5235

to	rel	area_weight
us/states/ny/districts/senate/37	in-district	0.2394

to	rel	area_weight
us/states/ny/districts/senate/35	in-district	0.1702

to	rel	area_weight
us/states/ny/districts/senate/34	in-district	0.0116

to	rel	area_weight
us/states/ny/districts/senate/36	in-district	0.0088

to	rel	area_weight
us/states/ny/districts/house/93	in-district	0.3802

to	rel	area_weight
us/states/ny/districts/house/95	in-district	0.185

to	rel	area_weight
us/states/ny/districts/house/92	in-district	0.1354

to	rel	area_weight
us/states/ny/districts/house/94	in-district	0.1016

to	rel	area_weight
us/states/ny/districts/house/88	in-district	0.0572

to	rel	area_weight
us/states/ny/districts/house/91	in-district	0.0482

to	rel	area_weight
us/states/ny/districts/house/90	in-district	0.0297

to	rel	area_weight
us/states/ny/districts/house/89	in-district	0.0162

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Westchester County, NY

County jurisdiction — 4 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	999677
Under 18	212470
18–64	605678
65+	181529
Median household income	118976
Poverty rate	9.01
Homeownership rate	61.84
Unemployment rate	6.05
Median home value	663200
Gini index	0.5383
Vacancy rate	5.45
White	520512
Black	136191
Asian	62523
Native	5261
Hispanic/Latino	273730
Bachelor's or higher	559893

Districts

NY-17 — 69% (congressional)
NY-16 — 27% (congressional)
NY Senate District 40 — 52% (state senate)
NY Senate District 37 — 24% (state senate)
NY Senate District 35 — 17% (state senate)
NY Senate District 34 — 1% (state senate)
NY Senate District 36 — 1% (state senate)
NY House District 93 — 38% (state house)
NY House District 95 — 18% (state house)
NY House District 92 — 14% (state house)
NY House District 94 — 10% (state house)
NY House District 88 — 6% (state house)
NY House District 91 — 5% (state house)
NY House District 90 — 3% (state house)
NY House District 89 — 2% (state house)

Source

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

3.9 KiB Raw Blame History Unescape Escape

Westchester County, NY

Demographics (ACS 2023)

Districts

Source

3.9 KiB

Raw Blame History