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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

3.7 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

Kanawha County, WV

county

54039

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
176537	34925	102558	39054	60943	15.75	71.06	5.58	147300	0.4779	15.43	152605	8657	2046	122	2789	53575

to	rel	area_weight
us/states/wv/districts/01	in-district	1.0

to	rel	area_weight
us/states/wv/districts/senate/17	in-district	0.6071

to	rel	area_weight
us/states/wv/districts/senate/7	in-district	0.2919

to	rel	area_weight
us/states/wv/districts/senate/8	in-district	0.101

to	rel	area_weight
us/states/wv/districts/house/61	in-district	0.2277

to	rel	area_weight
us/states/wv/districts/house/53	in-district	0.2189

to	rel	area_weight
us/states/wv/districts/house/52	in-district	0.1736

to	rel	area_weight
us/states/wv/districts/house/60	in-district	0.1555

to	rel	area_weight
us/states/wv/districts/house/55	in-district	0.1407

to	rel	area_weight
us/states/wv/districts/house/56	in-district	0.0313

to	rel	area_weight
us/states/wv/districts/house/59	in-district	0.0191

to	rel	area_weight
us/states/wv/districts/house/58	in-district	0.015

to	rel	area_weight
us/states/wv/districts/house/57	in-district	0.01

to	rel	area_weight
us/states/wv/districts/house/54	in-district	0.0075

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Kanawha County, WV

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	176537
Under 18	34925
18–64	102558
65+	39054
Median household income	60943
Poverty rate	15.75
Homeownership rate	71.06
Unemployment rate	5.58
Median home value	147300
Gini index	0.4779
Vacancy rate	15.43
White	152605
Black	8657
Asian	2046
Native	122
Hispanic/Latino	2789
Bachelor's or higher	53575

Districts

WV-01 — 100% (congressional)
WV Senate District 17 — 61% (state senate)
WV Senate District 7 — 29% (state senate)
WV Senate District 8 — 10% (state senate)
WV House District 61 — 23% (state house)
WV House District 53 — 22% (state house)
WV House District 52 — 17% (state house)
WV House District 60 — 16% (state house)
WV House District 55 — 14% (state house)
WV House District 56 — 3% (state house)
WV House District 59 — 2% (state house)
WV House District 58 — 2% (state house)
WV House District 57 — 1% (state house)
WV House District 54 — 1% (state house)

Source

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

3.7 KiB Raw Blame History Unescape Escape

Kanawha County, WV

Demographics (ACS 2023)

Districts

Source

3.7 KiB

Raw Blame History