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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

Tazewell County, IL

county

17179

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
130290	28584	75824	25882	77982	9.02	78.35	3.58	167500	0.426	7.97	121337	2101	1283	171	3503	34596

to	rel	area_weight
us/states/il/districts/16	in-district	0.5382

to	rel	area_weight
us/states/il/districts/17	in-district	0.4616

to	rel	area_weight
us/states/il/districts/senate/44	in-district	0.5899

to	rel	area_weight
us/states/il/districts/senate/47	in-district	0.2647

to	rel	area_weight
us/states/il/districts/senate/46	in-district	0.0878

to	rel	area_weight
us/states/il/districts/senate/53	in-district	0.0576

to	rel	area_weight
us/states/il/districts/house/87	in-district	0.5899

to	rel	area_weight
us/states/il/districts/house/93	in-district	0.1659

to	rel	area_weight
us/states/il/districts/house/94	in-district	0.0988

to	rel	area_weight
us/states/il/districts/house/91	in-district	0.0878

to	rel	area_weight
us/states/il/districts/house/105	in-district	0.0576

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Tazewell County, IL

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	130290
Under 18	28584
18–64	75824
65+	25882
Median household income	77982
Poverty rate	9.02
Homeownership rate	78.35
Unemployment rate	3.58
Median home value	167500
Gini index	0.426
Vacancy rate	7.97
White	121337
Black	2101
Asian	1283
Native	171
Hispanic/Latino	3503
Bachelor's or higher	34596

Districts

IL-16 — 54% (congressional)
IL-17 — 46% (congressional)
IL Senate District 44 — 59% (state senate)
IL Senate District 47 — 26% (state senate)
IL Senate District 46 — 9% (state senate)
IL Senate District 53 — 6% (state senate)
IL House District 87 — 59% (state house)
IL House District 93 — 17% (state house)
IL House District 94 — 10% (state house)
IL House District 91 — 9% (state house)
IL House District 105 — 6% (state house)

Source

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

3.2 KiB Raw Blame History Unescape Escape

Tazewell County, IL

Demographics (ACS 2023)

Districts

Source

3.2 KiB

Raw Blame History