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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

8.6 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

Maricopa County, AZ

county

04013

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
4559748	1024257	2792677	742814	89300	10.98	65.17	4.54	452800	0.4578	8.15	2672667	259526	208324	90213	1422451	1578463

to	rel	area_weight
us/states/az/districts/09	in-district	0.3534

to	rel	area_weight
us/states/az/districts/07	in-district	0.3251

to	rel	area_weight
us/states/az/districts/01	in-district	0.1757

to	rel	area_weight
us/states/az/districts/08	in-district	0.0628

to	rel	area_weight
us/states/az/districts/05	in-district	0.0246

to	rel	area_weight
us/states/az/districts/03	in-district	0.0224

to	rel	area_weight
us/states/az/districts/04	in-district	0.0195

to	rel	area_weight
us/states/az/districts/02	in-district	0.0165

to	rel	area_weight
us/states/az/districts/senate/23	in-district	0.2888

to	rel	area_weight
us/states/az/districts/senate/25	in-district	0.2423

to	rel	area_weight
us/states/az/districts/senate/3	in-district	0.1621

to	rel	area_weight
us/states/az/districts/senate/30	in-district	0.0976

to	rel	area_weight
us/states/az/districts/senate/29	in-district	0.0422

to	rel	area_weight
us/states/az/districts/senate/28	in-district	0.0329

to	rel	area_weight
us/states/az/districts/senate/8	in-district	0.0148

to	rel	area_weight
us/states/az/districts/senate/12	in-district	0.014

to	rel	area_weight
us/states/az/districts/senate/22	in-district	0.0121

to	rel	area_weight
us/states/az/districts/senate/11	in-district	0.0115

to	rel	area_weight
us/states/az/districts/senate/4	in-district	0.011

to	rel	area_weight
us/states/az/districts/senate/10	in-district	0.0089

to	rel	area_weight
us/states/az/districts/senate/16	in-district	0.0087

to	rel	area_weight
us/states/az/districts/senate/2	in-district	0.0085

to	rel	area_weight
us/states/az/districts/senate/15	in-district	0.0078

to	rel	area_weight
us/states/az/districts/senate/14	in-district	0.0073

to	rel	area_weight
us/states/az/districts/senate/13	in-district	0.0069

to	rel	area_weight
us/states/az/districts/senate/27	in-district	0.0064

to	rel	area_weight
us/states/az/districts/house/23	in-district	0.2888

to	rel	area_weight
us/states/az/districts/house/25	in-district	0.2423

to	rel	area_weight
us/states/az/districts/house/3	in-district	0.1621

to	rel	area_weight
us/states/az/districts/house/30	in-district	0.0976

to	rel	area_weight
us/states/az/districts/house/29	in-district	0.0422

to	rel	area_weight
us/states/az/districts/house/28	in-district	0.0329

to	rel	area_weight
us/states/az/districts/house/8	in-district	0.0148

to	rel	area_weight
us/states/az/districts/house/12	in-district	0.014

to	rel	area_weight
us/states/az/districts/house/22	in-district	0.0121

to	rel	area_weight
us/states/az/districts/house/11	in-district	0.0115

to	rel	area_weight
us/states/az/districts/house/4	in-district	0.011

to	rel	area_weight
us/states/az/districts/house/10	in-district	0.0089

to	rel	area_weight
us/states/az/districts/house/16	in-district	0.0087

to	rel	area_weight
us/states/az/districts/house/2	in-district	0.0085

to	rel	area_weight
us/states/az/districts/house/15	in-district	0.0078

to	rel	area_weight
us/states/az/districts/house/14	in-district	0.0073

to	rel	area_weight
us/states/az/districts/house/13	in-district	0.0069

to	rel	area_weight
us/states/az/districts/house/27	in-district	0.0064

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Maricopa County, AZ

County jurisdiction — 12 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	4559748
Under 18	1024257
18–64	2792677
65+	742814
Median household income	89300
Poverty rate	10.98
Homeownership rate	65.17
Unemployment rate	4.54
Median home value	452800
Gini index	0.4578
Vacancy rate	8.15
White	2672667
Black	259526
Asian	208324
Native	90213
Hispanic/Latino	1422451
Bachelor's or higher	1578463

Districts

AZ-09 — 35% (congressional)
AZ-07 — 33% (congressional)
AZ-01 — 18% (congressional)
AZ-08 — 6% (congressional)
AZ-05 — 2% (congressional)
AZ-03 — 2% (congressional)
AZ-04 — 2% (congressional)
AZ-02 — 2% (congressional)
AZ Senate District 23 — 29% (state senate)
AZ Senate District 25 — 24% (state senate)
AZ Senate District 3 — 16% (state senate)
AZ Senate District 30 — 10% (state senate)
AZ Senate District 29 — 4% (state senate)
AZ Senate District 28 — 3% (state senate)
AZ Senate District 8 — 1% (state senate)
AZ Senate District 12 — 1% (state senate)
AZ Senate District 22 — 1% (state senate)
AZ Senate District 11 — 1% (state senate)
AZ Senate District 4 — 1% (state senate)
AZ Senate District 10 — 1% (state senate)
AZ Senate District 16 — 1% (state senate)
AZ Senate District 2 — 1% (state senate)
AZ Senate District 15 — 1% (state senate)
AZ Senate District 14 — 1% (state senate)
AZ Senate District 13 — 1% (state senate)
AZ Senate District 27 — 1% (state senate)
AZ House District 23 — 29% (state house)
AZ House District 25 — 24% (state house)
AZ House District 3 — 16% (state house)
AZ House District 30 — 10% (state house)
AZ House District 29 — 4% (state house)
AZ House District 28 — 3% (state house)
AZ House District 8 — 1% (state house)
AZ House District 12 — 1% (state house)
AZ House District 22 — 1% (state house)
AZ House District 11 — 1% (state house)
AZ House District 4 — 1% (state house)
AZ House District 10 — 1% (state house)
AZ House District 16 — 1% (state house)
AZ House District 2 — 1% (state house)
AZ House District 15 — 1% (state house)
AZ House District 14 — 1% (state house)
AZ House District 13 — 1% (state house)
AZ House District 27 — 1% (state house)

Source

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

8.6 KiB Raw Blame History Unescape Escape

Maricopa County, AZ

Demographics (ACS 2023)

Districts

Source

8.6 KiB

Raw Blame History