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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

4.2 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

Pierce County, WA

county

53053

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
930319	214038	578745	137536	99564	8.81	64.73	5.15	526600	0.4232	4.97	595791	68964	64156	9941	119500	268021

to	rel	area_weight
us/states/wa/districts/08	in-district	0.6946

to	rel	area_weight
us/states/wa/districts/10	in-district	0.1554

to	rel	area_weight
us/states/wa/districts/06	in-district	0.1009

to	rel	area_weight
us/states/wa/districts/senate/2	in-district	0.4119

to	rel	area_weight
us/states/wa/districts/senate/31	in-district	0.293

to	rel	area_weight
us/states/wa/districts/senate/28	in-district	0.0902

to	rel	area_weight
us/states/wa/districts/senate/26	in-district	0.0636

to	rel	area_weight
us/states/wa/districts/senate/25	in-district	0.0367

to	rel	area_weight
us/states/wa/districts/senate/27	in-district	0.0249

to	rel	area_weight
us/states/wa/districts/senate/29	in-district	0.0193

to	rel	area_weight
us/states/wa/districts/house/2	in-district	0.4119

to	rel	area_weight
us/states/wa/districts/house/31	in-district	0.293

to	rel	area_weight
us/states/wa/districts/house/28	in-district	0.0902

to	rel	area_weight
us/states/wa/districts/house/26	in-district	0.0636

to	rel	area_weight
us/states/wa/districts/house/25	in-district	0.0367

to	rel	area_weight
us/states/wa/districts/house/27	in-district	0.0249

to	rel	area_weight
us/states/wa/districts/house/29	in-district	0.0193

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Pierce County, WA

County jurisdiction — 7 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	930319
Under 18	214038
18–64	578745
65+	137536
Median household income	99564
Poverty rate	8.81
Homeownership rate	64.73
Unemployment rate	5.15
Median home value	526600
Gini index	0.4232
Vacancy rate	4.97
White	595791
Black	68964
Asian	64156
Native	9941
Hispanic/Latino	119500
Bachelor's or higher	268021

Districts

WA-08 — 69% (congressional)
WA-10 — 16% (congressional)
WA-06 — 10% (congressional)
WA Senate District 2 — 41% (state senate)
WA Senate District 31 — 29% (state senate)
WA Senate District 28 — 9% (state senate)
WA Senate District 26 — 6% (state senate)
WA Senate District 25 — 4% (state senate)
WA Senate District 27 — 2% (state senate)
WA Senate District 29 — 2% (state senate)
WA House District 2 — 41% (state house)
WA House District 31 — 29% (state house)
WA House District 28 — 9% (state house)
WA House District 26 — 6% (state house)
WA House District 25 — 4% (state house)
WA House District 27 — 2% (state house)
WA House District 29 — 2% (state house)

Source

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

4.2 KiB Raw Blame History Unescape Escape

Pierce County, WA

Demographics (ACS 2023)

Districts

Source

4.2 KiB

Raw Blame History