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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

5.5 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

Pulaski County, AR

county

05119

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
399818	93178	239975	66665	62873	16.7	57.0	4.75	214700	0.5063	10.86	197634	146972	8927	1170	33418	144685

to	rel	area_weight
us/states/ar/districts/02	in-district	0.6957

to	rel	area_weight
us/states/ar/districts/01	in-district	0.1603

to	rel	area_weight
us/states/ar/districts/04	in-district	0.144

to	rel	area_weight
us/states/ar/districts/senate/12	in-district	0.251

to	rel	area_weight
us/states/ar/districts/senate/17	in-district	0.2086

to	rel	area_weight
us/states/ar/districts/senate/8	in-district	0.1422

to	rel	area_weight
us/states/ar/districts/senate/13	in-district	0.1416

to	rel	area_weight
us/states/ar/districts/senate/11	in-district	0.1024

to	rel	area_weight
us/states/ar/districts/senate/15	in-district	0.071

to	rel	area_weight
us/states/ar/districts/senate/14	in-district	0.0476

to	rel	area_weight
us/states/ar/districts/senate/16	in-district	0.0355

to	rel	area_weight
us/states/ar/districts/house/78	in-district	0.2277

to	rel	area_weight
us/states/ar/districts/house/66	in-district	0.1878

to	rel	area_weight
us/states/ar/districts/house/80	in-district	0.1759

to	rel	area_weight
us/states/ar/districts/house/69	in-district	0.1199

to	rel	area_weight
us/states/ar/districts/house/70	in-district	0.0607

to	rel	area_weight
us/states/ar/districts/house/71	in-district	0.0417

to	rel	area_weight
us/states/ar/districts/house/73	in-district	0.0348

to	rel	area_weight
us/states/ar/districts/house/72	in-district	0.0281

to	rel	area_weight
us/states/ar/districts/house/77	in-district	0.0276

to	rel	area_weight
us/states/ar/districts/house/79	in-district	0.0255

to	rel	area_weight
us/states/ar/districts/house/67	in-district	0.0236

to	rel	area_weight
us/states/ar/districts/house/75	in-district	0.0196

to	rel	area_weight
us/states/ar/districts/house/76	in-district	0.0152

to	rel	area_weight
us/states/ar/districts/house/74	in-district	0.0118

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Pulaski County, AR

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	399818
Under 18	93178
18–64	239975
65+	66665
Median household income	62873
Poverty rate	16.7
Homeownership rate	57.0
Unemployment rate	4.75
Median home value	214700
Gini index	0.5063
Vacancy rate	10.86
White	197634
Black	146972
Asian	8927
Native	1170
Hispanic/Latino	33418
Bachelor's or higher	144685

Districts

AR-02 — 70% (congressional)
AR-01 — 16% (congressional)
AR-04 — 14% (congressional)
AR Senate District 12 — 25% (state senate)
AR Senate District 17 — 21% (state senate)
AR Senate District 8 — 14% (state senate)
AR Senate District 13 — 14% (state senate)
AR Senate District 11 — 10% (state senate)
AR Senate District 15 — 7% (state senate)
AR Senate District 14 — 5% (state senate)
AR Senate District 16 — 4% (state senate)
AR House District 78 — 23% (state house)
AR House District 66 — 19% (state house)
AR House District 80 — 18% (state house)
AR House District 69 — 12% (state house)
AR House District 70 — 6% (state house)
AR House District 71 — 4% (state house)
AR House District 73 — 3% (state house)
AR House District 72 — 3% (state house)
AR House District 77 — 3% (state house)
AR House District 79 — 3% (state house)
AR House District 67 — 2% (state house)
AR House District 75 — 2% (state house)
AR House District 76 — 2% (state house)
AR House District 74 — 1% (state house)

Source

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

5.5 KiB Raw Blame History Unescape Escape

Pulaski County, AR

Demographics (ACS 2023)

Districts

Source

5.5 KiB

Raw Blame History