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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

5.0 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

Wake County, NC

county

37183

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
1178653	271179	755554	151920	105768	8.13	64.12	4.08	461300	0.4496	7.23	682049	221415	100766	2969	136184	646411

to	rel	area_weight
us/states/nc/districts/02	in-district	0.4805

to	rel	area_weight
us/states/nc/districts/13	in-district	0.3227

to	rel	area_weight
us/states/nc/districts/04	in-district	0.1968

to	rel	area_weight
us/states/nc/districts/senate/13	in-district	0.3018

to	rel	area_weight
us/states/nc/districts/senate/18	in-district	0.2639

to	rel	area_weight
us/states/nc/districts/senate/14	in-district	0.1551

to	rel	area_weight
us/states/nc/districts/senate/17	in-district	0.1041

to	rel	area_weight
us/states/nc/districts/senate/16	in-district	0.102

to	rel	area_weight
us/states/nc/districts/senate/15	in-district	0.073

to	rel	area_weight
us/states/nc/districts/house/35	in-district	0.1928

to	rel	area_weight
us/states/nc/districts/house/39	in-district	0.1411

to	rel	area_weight
us/states/nc/districts/house/37	in-district	0.1335

to	rel	area_weight
us/states/nc/districts/house/33	in-district	0.0885

to	rel	area_weight
us/states/nc/districts/house/21	in-district	0.0872

to	rel	area_weight
us/states/nc/districts/house/36	in-district	0.0727

to	rel	area_weight
us/states/nc/districts/house/41	in-district	0.0546

to	rel	area_weight
us/states/nc/districts/house/40	in-district	0.0484

to	rel	area_weight
us/states/nc/districts/house/66	in-district	0.0428

to	rel	area_weight
us/states/nc/districts/house/49	in-district	0.0369

to	rel	area_weight
us/states/nc/districts/house/38	in-district	0.0363

to	rel	area_weight
us/states/nc/districts/house/11	in-district	0.0334

to	rel	area_weight
us/states/nc/districts/house/34	in-district	0.0319

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Wake County, NC

County jurisdiction — 7 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	1178653
Under 18	271179
18–64	755554
65+	151920
Median household income	105768
Poverty rate	8.13
Homeownership rate	64.12
Unemployment rate	4.08
Median home value	461300
Gini index	0.4496
Vacancy rate	7.23
White	682049
Black	221415
Asian	100766
Native	2969
Hispanic/Latino	136184
Bachelor's or higher	646411

Districts

NC-02 — 48% (congressional)
NC-13 — 32% (congressional)
NC-04 — 20% (congressional)
NC Senate District 13 — 30% (state senate)
NC Senate District 18 — 26% (state senate)
NC Senate District 14 — 16% (state senate)
NC Senate District 17 — 10% (state senate)
NC Senate District 16 — 10% (state senate)
NC Senate District 15 — 7% (state senate)
NC House District 35 — 19% (state house)
NC House District 39 — 14% (state house)
NC House District 37 — 13% (state house)
NC House District 33 — 9% (state house)
NC House District 21 — 9% (state house)
NC House District 36 — 7% (state house)
NC House District 41 — 5% (state house)
NC House District 40 — 5% (state house)
NC House District 66 — 4% (state house)
NC House District 49 — 4% (state house)
NC House District 38 — 4% (state house)
NC House District 11 — 3% (state house)
NC House District 34 — 3% (state house)

Source

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

5.0 KiB Raw Blame History Unescape Escape

Wake County, NC

Demographics (ACS 2023)

Districts

Source

5.0 KiB

Raw Blame History