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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

4.3 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

Marion County, OR

county

41047

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
349244	82196	208670	58378	77351	13.03	62.31	5.34	416400	0.4385	4.1	231379	4236	7059	4297	101164	82383

to	rel	area_weight
us/states/or/districts/05	in-district	0.6985

to	rel	area_weight
us/states/or/districts/06	in-district	0.2957

to	rel	area_weight
us/states/or/districts/02	in-district	0.0059

to	rel	area_weight
us/states/or/districts/senate/9	in-district	0.8135

to	rel	area_weight
us/states/or/districts/senate/11	in-district	0.0753

to	rel	area_weight
us/states/or/districts/senate/8	in-district	0.0373

to	rel	area_weight
us/states/or/districts/senate/10	in-district	0.0349

to	rel	area_weight
us/states/or/districts/senate/29	in-district	0.0227

to	rel	area_weight
us/states/or/districts/senate/6	in-district	0.0161

to	rel	area_weight
us/states/or/districts/house/17	in-district	0.5087

to	rel	area_weight
us/states/or/districts/house/18	in-district	0.3048

to	rel	area_weight
us/states/or/districts/house/22	in-district	0.0623

to	rel	area_weight
us/states/or/districts/house/15	in-district	0.0373

to	rel	area_weight
us/states/or/districts/house/57	in-district	0.0227

to	rel	area_weight
us/states/or/districts/house/20	in-district	0.0202

to	rel	area_weight
us/states/or/districts/house/11	in-district	0.0161

to	rel	area_weight
us/states/or/districts/house/19	in-district	0.0147

to	rel	area_weight
us/states/or/districts/house/21	in-district	0.0131

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Marion County, OR

County jurisdiction — 2 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	349244
Under 18	82196
18–64	208670
65+	58378
Median household income	77351
Poverty rate	13.03
Homeownership rate	62.31
Unemployment rate	5.34
Median home value	416400
Gini index	0.4385
Vacancy rate	4.1
White	231379
Black	4236
Asian	7059
Native	4297
Hispanic/Latino	101164
Bachelor's or higher	82383

Districts

OR-05 — 70% (congressional)
OR-06 — 30% (congressional)
OR-02 — 1% (congressional)
OR Senate District 9 — 81% (state senate)
OR Senate District 11 — 8% (state senate)
OR Senate District 8 — 4% (state senate)
OR Senate District 10 — 3% (state senate)
OR Senate District 29 — 2% (state senate)
OR Senate District 6 — 2% (state senate)
OR House District 17 — 51% (state house)
OR House District 18 — 30% (state house)
OR House District 22 — 6% (state house)
OR House District 15 — 4% (state house)
OR House District 57 — 2% (state house)
OR House District 20 — 2% (state house)
OR House District 11 — 2% (state house)
OR House District 19 — 1% (state house)
OR House District 21 — 1% (state house)

Source

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

4.3 KiB Raw Blame History Unescape Escape

Marion County, OR

Demographics (ACS 2023)

Districts

Source

4.3 KiB

Raw Blame History