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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

Erie County, NY

county

36029

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
950622	191431	575841	183350	72839	13.85	65.82	4.87	233800	0.4637	7.15	699174	118588	46784	3857	60918	371632

to	rel	area_weight
us/states/ny/districts/23	in-district	0.6867

to	rel	area_weight
us/states/ny/districts/26	in-district	0.1718

to	rel	area_weight
us/states/ny/districts/senate/60	in-district	0.7042

to	rel	area_weight
us/states/ny/districts/senate/61	in-district	0.0989

to	rel	area_weight
us/states/ny/districts/senate/63	in-district	0.0559

to	rel	area_weight
us/states/ny/districts/house/147	in-district	0.4979

to	rel	area_weight
us/states/ny/districts/house/144	in-district	0.1088

to	rel	area_weight
us/states/ny/districts/house/142	in-district	0.0448

to	rel	area_weight
us/states/ny/districts/house/149	in-district	0.0444

to	rel	area_weight
us/states/ny/districts/house/146	in-district	0.0438

to	rel	area_weight
us/states/ny/districts/house/143	in-district	0.0334

to	rel	area_weight
us/states/ny/districts/house/145	in-district	0.0273

to	rel	area_weight
us/states/ny/districts/house/140	in-district	0.0225

to	rel	area_weight
us/states/ny/districts/house/150	in-district	0.0209

to	rel	area_weight
us/states/ny/districts/house/141	in-district	0.0139

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Erie County, NY

County jurisdiction — 3 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	950622
Under 18	191431
18–64	575841
65+	183350
Median household income	72839
Poverty rate	13.85
Homeownership rate	65.82
Unemployment rate	4.87
Median home value	233800
Gini index	0.4637
Vacancy rate	7.15
White	699174
Black	118588
Asian	46784
Native	3857
Hispanic/Latino	60918
Bachelor's or higher	371632

Districts

NY-23 — 69% (congressional)
NY-26 — 17% (congressional)
NY Senate District 60 — 70% (state senate)
NY Senate District 61 — 10% (state senate)
NY Senate District 63 — 6% (state senate)
NY House District 147 — 50% (state house)
NY House District 144 — 11% (state house)
NY House District 142 — 4% (state house)
NY House District 149 — 4% (state house)
NY House District 146 — 4% (state house)
NY House District 143 — 3% (state house)
NY House District 145 — 3% (state house)
NY House District 140 — 2% (state house)
NY House District 150 — 2% (state house)
NY House District 141 — 1% (state house)

Source

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

3.9 KiB Raw Blame History Unescape Escape

Erie County, NY

Demographics (ACS 2023)

Districts

Source

3.9 KiB

Raw Blame History