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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

York County, PA

county

42133

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
462924	101294	274517	87113	84829	8.36	76.34	4.49	248600	0.4122	4.36	375793	29054	6866	644	44412	123557

to	rel	area_weight
us/states/pa/districts/11	in-district	0.6137

to	rel	area_weight
us/states/pa/districts/10	in-district	0.384

to	rel	area_weight
us/states/pa/districts/senate/28	in-district	0.662

to	rel	area_weight
us/states/pa/districts/senate/31	in-district	0.3377

to	rel	area_weight
us/states/pa/districts/house/92	in-district	0.2241

to	rel	area_weight
us/states/pa/districts/house/94	in-district	0.1982

to	rel	area_weight
us/states/pa/districts/house/93	in-district	0.172

to	rel	area_weight
us/states/pa/districts/house/196	in-district	0.1434

to	rel	area_weight
us/states/pa/districts/house/169	in-district	0.1381

to	rel	area_weight
us/states/pa/districts/house/47	in-district	0.1096

to	rel	area_weight
us/states/pa/districts/house/95	in-district	0.0142

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

York County, PA

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	462924
Under 18	101294
18–64	274517
65+	87113
Median household income	84829
Poverty rate	8.36
Homeownership rate	76.34
Unemployment rate	4.49
Median home value	248600
Gini index	0.4122
Vacancy rate	4.36
White	375793
Black	29054
Asian	6866
Native	644
Hispanic/Latino	44412
Bachelor's or higher	123557

Districts

PA-11 — 61% (congressional)
PA-10 — 38% (congressional)
PA Senate District 28 — 66% (state senate)
PA Senate District 31 — 34% (state senate)
PA House District 92 — 22% (state house)
PA House District 94 — 20% (state house)
PA House District 93 — 17% (state house)
PA House District 196 — 14% (state house)
PA House District 169 — 14% (state house)
PA House District 47 — 11% (state house)
PA House District 95 — 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

York County, PA

Demographics (ACS 2023)

Districts

Source

3.2 KiB

Raw Blame History