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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

Benton County, AR

county

05007

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
303632	77250	184623	41759	93506	7.56	67.01	3.08	323500	0.4498	8.79	183388	5479	14007	3417	56188	102124

to	rel	area_weight
us/states/ar/districts/03	in-district	0.9997

to	rel	area_weight
us/states/ar/districts/senate/32	in-district	0.3448

to	rel	area_weight
us/states/ar/districts/senate/35	in-district	0.3029

to	rel	area_weight
us/states/ar/districts/senate/33	in-district	0.21

to	rel	area_weight
us/states/ar/districts/senate/34	in-district	0.1419

to	rel	area_weight
us/states/ar/districts/house/12	in-district	0.2516

to	rel	area_weight
us/states/ar/districts/house/7	in-district	0.2425

to	rel	area_weight
us/states/ar/districts/house/17	in-district	0.1767

to	rel	area_weight
us/states/ar/districts/house/8	in-district	0.083

to	rel	area_weight
us/states/ar/districts/house/16	in-district	0.0774

to	rel	area_weight
us/states/ar/districts/house/14	in-district	0.0575

to	rel	area_weight
us/states/ar/districts/house/10	in-district	0.0371

to	rel	area_weight
us/states/ar/districts/house/11	in-district	0.0354

to	rel	area_weight
us/states/ar/districts/house/13	in-district	0.0215

to	rel	area_weight
us/states/ar/districts/house/15	in-district	0.0149

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Benton County, AR

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	303632
Under 18	77250
18–64	184623
65+	41759
Median household income	93506
Poverty rate	7.56
Homeownership rate	67.01
Unemployment rate	3.08
Median home value	323500
Gini index	0.4498
Vacancy rate	8.79
White	183388
Black	5479
Asian	14007
Native	3417
Hispanic/Latino	56188
Bachelor's or higher	102124

Districts

AR-03 — 100% (congressional)
AR Senate District 32 — 34% (state senate)
AR Senate District 35 — 30% (state senate)
AR Senate District 33 — 21% (state senate)
AR Senate District 34 — 14% (state senate)
AR House District 12 — 25% (state house)
AR House District 7 — 24% (state house)
AR House District 17 — 18% (state house)
AR House District 8 — 8% (state house)
AR House District 16 — 8% (state house)
AR House District 14 — 6% (state house)
AR House District 10 — 4% (state house)
AR House District 11 — 4% (state house)
AR House District 13 — 2% (state house)
AR House District 15 — 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

Benton County, AR

Demographics (ACS 2023)

Districts

Source

3.9 KiB

Raw Blame History