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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

4.1 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

Sussex County, DE

county

10005

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
271134	53031	63130	154973	85258	9.14	82.19	4.86	397800	0.4562	28.34	200816	26527	4329	583	32807	99838

to	rel	area_weight
us/states/de/districts/00	in-district	0.8183

to	rel	area_weight
us/states/de/districts/senate/21	in-district	0.2455

to	rel	area_weight
us/states/de/districts/senate/18	in-district	0.2177

to	rel	area_weight
us/states/de/districts/senate/19	in-district	0.1386

to	rel	area_weight
us/states/de/districts/senate/6	in-district	0.1087

to	rel	area_weight
us/states/de/districts/senate/20	in-district	0.1069

to	rel	area_weight
us/states/de/districts/house/35	in-district	0.1654

to	rel	area_weight
us/states/de/districts/house/40	in-district	0.1303

to	rel	area_weight
us/states/de/districts/house/41	in-district	0.1116

to	rel	area_weight
us/states/de/districts/house/36	in-district	0.1031

to	rel	area_weight
us/states/de/districts/house/37	in-district	0.075

to	rel	area_weight
us/states/de/districts/house/39	in-district	0.059

to	rel	area_weight
us/states/de/districts/house/20	in-district	0.0483

to	rel	area_weight
us/states/de/districts/house/38	in-district	0.0452

to	rel	area_weight
us/states/de/districts/house/4	in-district	0.0436

to	rel	area_weight
us/states/de/districts/house/14	in-district	0.0358

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Sussex County, DE

County jurisdiction — 2 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	271134
Under 18	53031
18–64	63130
65+	154973
Median household income	85258
Poverty rate	9.14
Homeownership rate	82.19
Unemployment rate	4.86
Median home value	397800
Gini index	0.4562
Vacancy rate	28.34
White	200816
Black	26527
Asian	4329
Native	583
Hispanic/Latino	32807
Bachelor's or higher	99838

Districts

DE-00 — 82% (congressional)
DE Senate District 21 — 25% (state senate)
DE Senate District 18 — 22% (state senate)
DE Senate District 19 — 14% (state senate)
DE Senate District 6 — 11% (state senate)
DE Senate District 20 — 11% (state senate)
DE House District 35 — 17% (state house)
DE House District 40 — 13% (state house)
DE House District 41 — 11% (state house)
DE House District 36 — 10% (state house)
DE House District 37 — 8% (state house)
DE House District 39 — 6% (state house)
DE House District 20 — 5% (state house)
DE House District 38 — 5% (state house)
DE House District 4 — 4% (state house)
DE House District 14 — 4% (state house)

Source

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

4.1 KiB Raw Blame History Unescape Escape

Sussex County, DE

Demographics (ACS 2023)

Districts

Source

4.1 KiB

Raw Blame History