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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

3.4 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

Peoria County, IL

county

17143

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
179645	42971	103861	32813	65108	15.67	67.0	6.17	158500	0.4853	8.45	120891	31145	8302	509	10799	58283

to	rel	area_weight
us/states/il/districts/16	in-district	0.596

to	rel	area_weight
us/states/il/districts/17	in-district	0.404

to	rel	area_weight
us/states/il/districts/senate/47	in-district	0.6605

to	rel	area_weight
us/states/il/districts/senate/37	in-district	0.2274

to	rel	area_weight
us/states/il/districts/senate/46	in-district	0.0922

to	rel	area_weight
us/states/il/districts/senate/53	in-district	0.0199

to	rel	area_weight
us/states/il/districts/house/93	in-district	0.6464

to	rel	area_weight
us/states/il/districts/house/73	in-district	0.2274

to	rel	area_weight
us/states/il/districts/house/92	in-district	0.0759

to	rel	area_weight
us/states/il/districts/house/105	in-district	0.0199

to	rel	area_weight
us/states/il/districts/house/91	in-district	0.0163

to	rel	area_weight
us/states/il/districts/house/94	in-district	0.0141

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Peoria County, IL

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	179645
Under 18	42971
18–64	103861
65+	32813
Median household income	65108
Poverty rate	15.67
Homeownership rate	67.0
Unemployment rate	6.17
Median home value	158500
Gini index	0.4853
Vacancy rate	8.45
White	120891
Black	31145
Asian	8302
Native	509
Hispanic/Latino	10799
Bachelor's or higher	58283

Districts

IL-16 — 60% (congressional)
IL-17 — 40% (congressional)
IL Senate District 47 — 66% (state senate)
IL Senate District 37 — 23% (state senate)
IL Senate District 46 — 9% (state senate)
IL Senate District 53 — 2% (state senate)
IL House District 93 — 65% (state house)
IL House District 73 — 23% (state house)
IL House District 92 — 8% (state house)
IL House District 105 — 2% (state house)
IL House District 91 — 2% (state house)
IL House District 94 — 1% (state house)

Source

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

3.4 KiB Raw Blame History Unescape Escape

Peoria County, IL

Demographics (ACS 2023)

Districts

Source

3.4 KiB

Raw Blame History