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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

3.2 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

Lane County, OR

county

41039

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
384207	67084	237030	80093	71544	15.34	59.69	6.43	430600	0.4561	5.5	310002	4587	10121	4718	40225	128549

to	rel	area_weight
us/states/or/districts/04	in-district	0.9767

to	rel	area_weight
us/states/or/districts/senate/6	in-district	0.6555

to	rel	area_weight
us/states/or/districts/senate/5	in-district	0.2631

to	rel	area_weight
us/states/or/districts/senate/4	in-district	0.0312

to	rel	area_weight
us/states/or/districts/senate/7	in-district	0.0284

to	rel	area_weight
us/states/or/districts/house/12	in-district	0.6554

to	rel	area_weight
us/states/or/districts/house/9	in-district	0.1683

to	rel	area_weight
us/states/or/districts/house/10	in-district	0.0948

to	rel	area_weight
us/states/or/districts/house/8	in-district	0.0246

to	rel	area_weight
us/states/or/districts/house/14	in-district	0.0237

to	rel	area_weight
us/states/or/districts/house/7	in-district	0.0066

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Lane County, OR

County jurisdiction — 3 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	384207
Under 18	67084
18–64	237030
65+	80093
Median household income	71544
Poverty rate	15.34
Homeownership rate	59.69
Unemployment rate	6.43
Median home value	430600
Gini index	0.4561
Vacancy rate	5.5
White	310002
Black	4587
Asian	10121
Native	4718
Hispanic/Latino	40225
Bachelor's or higher	128549

Districts

OR-04 — 98% (congressional)
OR Senate District 6 — 66% (state senate)
OR Senate District 5 — 26% (state senate)
OR Senate District 4 — 3% (state senate)
OR Senate District 7 — 3% (state senate)
OR House District 12 — 66% (state house)
OR House District 9 — 17% (state house)
OR House District 10 — 9% (state house)
OR House District 8 — 2% (state house)
OR House District 14 — 2% (state house)
OR House District 7 — 1% (state house)

Source

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

3.2 KiB Raw Blame History Unescape Escape

Lane County, OR

Demographics (ACS 2023)

Districts

Source

3.2 KiB

Raw Blame History