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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

Fayette County, KY

county

21067

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
323725	67924	208175	47626	69479	14.93	53.77	4.85	293500	0.4921	6.21	221483	46839	14103	714	30824	146521

to	rel	area_weight
us/states/ky/districts/06	in-district	1.0

to	rel	area_weight
us/states/ky/districts/senate/28	in-district	0.2798

to	rel	area_weight
us/states/ky/districts/senate/27	in-district	0.222

to	rel	area_weight
us/states/ky/districts/senate/34	in-district	0.163

to	rel	area_weight
us/states/ky/districts/senate/17	in-district	0.1184

to	rel	area_weight
us/states/ky/districts/senate/13	in-district	0.0968

to	rel	area_weight
us/states/ky/districts/senate/12	in-district	0.0884

to	rel	area_weight
us/states/ky/districts/senate/22	in-district	0.0317

to	rel	area_weight
us/states/ky/districts/house/88	in-district	0.4274

to	rel	area_weight
us/states/ky/districts/house/73	in-district	0.2261

to	rel	area_weight
us/states/ky/districts/house/45	in-district	0.1124

to	rel	area_weight
us/states/ky/districts/house/77	in-district	0.0591

to	rel	area_weight
us/states/ky/districts/house/76	in-district	0.0511

to	rel	area_weight
us/states/ky/districts/house/93	in-district	0.0388

to	rel	area_weight
us/states/ky/districts/house/75	in-district	0.038

to	rel	area_weight
us/states/ky/districts/house/79	in-district	0.0371

to	rel	area_weight
us/states/ky/districts/house/39	in-district	0.0097

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Fayette County, KY

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	323725
Under 18	67924
18–64	208175
65+	47626
Median household income	69479
Poverty rate	14.93
Homeownership rate	53.77
Unemployment rate	4.85
Median home value	293500
Gini index	0.4921
Vacancy rate	6.21
White	221483
Black	46839
Asian	14103
Native	714
Hispanic/Latino	30824
Bachelor's or higher	146521

Districts

KY-06 — 100% (congressional)
KY Senate District 28 — 28% (state senate)
KY Senate District 27 — 22% (state senate)
KY Senate District 34 — 16% (state senate)
KY Senate District 17 — 12% (state senate)
KY Senate District 13 — 10% (state senate)
KY Senate District 12 — 9% (state senate)
KY Senate District 22 — 3% (state senate)
KY House District 88 — 43% (state house)
KY House District 73 — 23% (state house)
KY House District 45 — 11% (state house)
KY House District 77 — 6% (state house)
KY House District 76 — 5% (state house)
KY House District 93 — 4% (state house)
KY House District 75 — 4% (state house)
KY House District 79 — 4% (state house)
KY House District 39 — 1% (state house)

Source

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

4.2 KiB Raw Blame History Unescape Escape

Fayette County, KY

Demographics (ACS 2023)

Districts

Source

4.2 KiB

Raw Blame History