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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

3.0 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

Faulkner County, AR

county

05045

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
127717	28894	81278	17545	67289	14.51	62.3	3.39	232700	0.4516	8.09	100664	15079	1268	250	7303	39045

to	rel	area_weight
us/states/ar/districts/02	in-district	1.0

to	rel	area_weight
us/states/ar/districts/senate/24	in-district	0.6783

to	rel	area_weight
us/states/ar/districts/senate/17	in-district	0.2277

to	rel	area_weight
us/states/ar/districts/senate/18	in-district	0.0937

to	rel	area_weight
us/states/ar/districts/house/42	in-district	0.3876

to	rel	area_weight
us/states/ar/districts/house/57	in-district	0.2753

to	rel	area_weight
us/states/ar/districts/house/69	in-district	0.1423

to	rel	area_weight
us/states/ar/districts/house/54	in-district	0.1034

to	rel	area_weight
us/states/ar/districts/house/56	in-district	0.0677

to	rel	area_weight
us/states/ar/districts/house/55	in-district	0.0236

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Faulkner County, AR

County jurisdiction.

Demographics (ACS 2023)

Measure	Value
Population	127717
Under 18	28894
18–64	81278
65+	17545
Median household income	67289
Poverty rate	14.51
Homeownership rate	62.3
Unemployment rate	3.39
Median home value	232700
Gini index	0.4516
Vacancy rate	8.09
White	100664
Black	15079
Asian	1268
Native	250
Hispanic/Latino	7303
Bachelor's or higher	39045

Districts

AR-02 — 100% (congressional)
AR Senate District 24 — 68% (state senate)
AR Senate District 17 — 23% (state senate)
AR Senate District 18 — 9% (state senate)
AR House District 42 — 39% (state house)
AR House District 57 — 28% (state house)
AR House District 69 — 14% (state house)
AR House District 54 — 10% (state house)
AR House District 56 — 7% (state house)
AR House District 55 — 2% (state house)

Source

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

3.0 KiB Raw Blame History Unescape Escape

Faulkner County, AR

Demographics (ACS 2023)

Districts

Source

3.0 KiB

Raw Blame History