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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

5.2 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

Miami-Dade County, FL

county

12086

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
2738356	548079	1726381	463896	71753	14.72	52.23	4.6	463000	0.5134	10.92	725047	403015	43196	6935	1898211	935072

to	rel	area_weight
us/states/fl/districts/28	in-district	0.5266

to	rel	area_weight
us/states/fl/districts/26	in-district	0.2166

to	rel	area_weight
us/states/fl/districts/27	in-district	0.0558

to	rel	area_weight
us/states/fl/districts/24	in-district	0.0474

to	rel	area_weight
us/states/fl/districts/senate/40	in-district	0.6403

to	rel	area_weight
us/states/fl/districts/senate/39	in-district	0.0711

to	rel	area_weight
us/states/fl/districts/senate/38	in-district	0.0671

to	rel	area_weight
us/states/fl/districts/senate/34	in-district	0.0384

to	rel	area_weight
us/states/fl/districts/senate/36	in-district	0.0241

to	rel	area_weight
us/states/fl/districts/house/120	in-district	0.6228

to	rel	area_weight
us/states/fl/districts/house/111	in-district	0.0482

to	rel	area_weight
us/states/fl/districts/house/115	in-district	0.0211

to	rel	area_weight
us/states/fl/districts/house/119	in-district	0.0205

to	rel	area_weight
us/states/fl/districts/house/118	in-district	0.0151

to	rel	area_weight
us/states/fl/districts/house/117	in-district	0.013

to	rel	area_weight
us/states/fl/districts/house/106	in-district	0.0128

to	rel	area_weight
us/states/fl/districts/house/114	in-district	0.0126

to	rel	area_weight
us/states/fl/districts/house/108	in-district	0.0118

to	rel	area_weight
us/states/fl/districts/house/112	in-district	0.0118

to	rel	area_weight
us/states/fl/districts/house/107	in-district	0.0116

to	rel	area_weight
us/states/fl/districts/house/109	in-district	0.0111

to	rel	area_weight
us/states/fl/districts/house/116	in-district	0.0099

to	rel	area_weight
us/states/fl/districts/house/110	in-district	0.0095

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Miami-Dade County, FL

County jurisdiction — 223 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	2738356
Under 18	548079
18–64	1726381
65+	463896
Median household income	71753
Poverty rate	14.72
Homeownership rate	52.23
Unemployment rate	4.6
Median home value	463000
Gini index	0.5134
Vacancy rate	10.92
White	725047
Black	403015
Asian	43196
Native	6935
Hispanic/Latino	1898211
Bachelor's or higher	935072

Districts

FL-28 — 53% (congressional)
FL-26 — 22% (congressional)
FL-27 — 6% (congressional)
FL-24 — 5% (congressional)
FL Senate District 40 — 64% (state senate)
FL Senate District 39 — 7% (state senate)
FL Senate District 38 — 7% (state senate)
FL Senate District 34 — 4% (state senate)
FL Senate District 36 — 2% (state senate)
FL House District 120 — 62% (state house)
FL House District 111 — 5% (state house)
FL House District 115 — 2% (state house)
FL House District 119 — 2% (state house)
FL House District 118 — 2% (state house)
FL House District 117 — 1% (state house)
FL House District 106 — 1% (state house)
FL House District 114 — 1% (state house)
FL House District 108 — 1% (state house)
FL House District 112 — 1% (state house)
FL House District 107 — 1% (state house)
FL House District 109 — 1% (state house)
FL House District 116 — 1% (state house)
FL House District 110 — 1% (state house)

Source

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

5.2 KiB Raw Blame History Unescape Escape

Miami-Dade County, FL

Demographics (ACS 2023)

Districts

Source

5.2 KiB

Raw Blame History