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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

3.9 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

Passaic County, NJ

county

34031

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
521012	123141	315239	82632	87522	12.99	53.07	8.0	459500	0.4656	3.7	215130	53332	28629	2084	231009	144545

to	rel	area_weight
us/states/nj/districts/05	in-district	0.6438

to	rel	area_weight
us/states/nj/districts/09	in-district	0.2178

to	rel	area_weight
us/states/nj/districts/11	in-district	0.138

to	rel	area_weight
us/states/nj/districts/senate/25	in-district	0.4092

to	rel	area_weight
us/states/nj/districts/senate/26	in-district	0.2532

to	rel	area_weight
us/states/nj/districts/senate/40	in-district	0.1936

to	rel	area_weight
us/states/nj/districts/senate/35	in-district	0.07

to	rel	area_weight
us/states/nj/districts/senate/27	in-district	0.0574

to	rel	area_weight
us/states/nj/districts/senate/36	in-district	0.0163

to	rel	area_weight
us/states/nj/districts/house/25	in-district	0.4092

to	rel	area_weight
us/states/nj/districts/house/26	in-district	0.2532

to	rel	area_weight
us/states/nj/districts/house/40	in-district	0.1936

to	rel	area_weight
us/states/nj/districts/house/35	in-district	0.07

to	rel	area_weight
us/states/nj/districts/house/27	in-district	0.0574

to	rel	area_weight
us/states/nj/districts/house/36	in-district	0.0163

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Passaic County, NJ

County jurisdiction — 3 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	521012
Under 18	123141
18–64	315239
65+	82632
Median household income	87522
Poverty rate	12.99
Homeownership rate	53.07
Unemployment rate	8.0
Median home value	459500
Gini index	0.4656
Vacancy rate	3.7
White	215130
Black	53332
Asian	28629
Native	2084
Hispanic/Latino	231009
Bachelor's or higher	144545

Districts

NJ-05 — 64% (congressional)
NJ-09 — 22% (congressional)
NJ-11 — 14% (congressional)
NJ Senate District 25 — 41% (state senate)
NJ Senate District 26 — 25% (state senate)
NJ Senate District 40 — 19% (state senate)
NJ Senate District 35 — 7% (state senate)
NJ Senate District 27 — 6% (state senate)
NJ Senate District 36 — 2% (state senate)
NJ House District 25 — 41% (state house)
NJ House District 26 — 25% (state house)
NJ House District 40 — 19% (state house)
NJ House District 35 — 7% (state house)
NJ House District 27 — 6% (state house)
NJ House District 36 — 2% (state house)

Source

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

3.9 KiB Raw Blame History Unescape Escape

Passaic County, NJ

Demographics (ACS 2023)

Districts

Source

3.9 KiB

Raw Blame History