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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

4.5 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

Bexar County, TX

county

48029

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
2067341	510042	1291115	266184	72341	14.62	58.85	5.78	262200	0.4625	8.51	874523	163786	69327	25205	1234086	595909

to	rel	area_weight
us/states/tx/districts/23	in-district	0.4013

to	rel	area_weight
us/states/tx/districts/28	in-district	0.2738

to	rel	area_weight
us/states/tx/districts/20	in-district	0.1426

to	rel	area_weight
us/states/tx/districts/21	in-district	0.1136

to	rel	area_weight
us/states/tx/districts/35	in-district	0.0686

to	rel	area_weight
us/states/tx/districts/senate/19	in-district	0.5077

to	rel	area_weight
us/states/tx/districts/senate/25	in-district	0.2439

to	rel	area_weight
us/states/tx/districts/senate/26	in-district	0.161

to	rel	area_weight
us/states/tx/districts/senate/21	in-district	0.0874

to	rel	area_weight
us/states/tx/districts/house/118	in-district	0.3832

to	rel	area_weight
us/states/tx/districts/house/122	in-district	0.1941

to	rel	area_weight
us/states/tx/districts/house/121	in-district	0.082

to	rel	area_weight
us/states/tx/districts/house/119	in-district	0.0738

to	rel	area_weight
us/states/tx/districts/house/117	in-district	0.0728

to	rel	area_weight
us/states/tx/districts/house/120	in-district	0.0497

to	rel	area_weight
us/states/tx/districts/house/124	in-district	0.0418

to	rel	area_weight
us/states/tx/districts/house/125	in-district	0.0358

to	rel	area_weight
us/states/tx/districts/house/123	in-district	0.0346

to	rel	area_weight
us/states/tx/districts/house/116	in-district	0.032

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Bexar County, TX

County jurisdiction — 4 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	2067341
Under 18	510042
18–64	1291115
65+	266184
Median household income	72341
Poverty rate	14.62
Homeownership rate	58.85
Unemployment rate	5.78
Median home value	262200
Gini index	0.4625
Vacancy rate	8.51
White	874523
Black	163786
Asian	69327
Native	25205
Hispanic/Latino	1234086
Bachelor's or higher	595909

Districts

TX-23 — 40% (congressional)
TX-28 — 27% (congressional)
TX-20 — 14% (congressional)
TX-21 — 11% (congressional)
TX-35 — 7% (congressional)
TX Senate District 19 — 51% (state senate)
TX Senate District 25 — 24% (state senate)
TX Senate District 26 — 16% (state senate)
TX Senate District 21 — 9% (state senate)
TX House District 118 — 38% (state house)
TX House District 122 — 19% (state house)
TX House District 121 — 8% (state house)
TX House District 119 — 7% (state house)
TX House District 117 — 7% (state house)
TX House District 120 — 5% (state house)
TX House District 124 — 4% (state house)
TX House District 125 — 4% (state house)
TX House District 123 — 3% (state house)
TX House District 116 — 3% (state house)

Source

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

4.5 KiB Raw Blame History Unescape Escape

Bexar County, TX

Demographics (ACS 2023)

Districts

Source

4.5 KiB

Raw Blame History