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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

5.1 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

Kent County, RI

county

44003

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
171456	30919	105520	35017	94345	7.46	73.08	4.71	366100	0.4438	4.82	146114	3552	5056	451	11762	61842

to	rel	area_weight
us/states/ri/districts/02	in-district	0.9324

to	rel	area_weight
us/states/ri/districts/senate/21	in-district	0.2984

to	rel	area_weight
us/states/ri/districts/senate/33	in-district	0.2218

to	rel	area_weight
us/states/ri/districts/senate/35	in-district	0.0882

to	rel	area_weight
us/states/ri/districts/senate/30	in-district	0.0849

to	rel	area_weight
us/states/ri/districts/senate/34	in-district	0.084

to	rel	area_weight
us/states/ri/districts/senate/31	in-district	0.0603

to	rel	area_weight
us/states/ri/districts/senate/29	in-district	0.0523

to	rel	area_weight
us/states/ri/districts/senate/9	in-district	0.0405

to	rel	area_weight
us/states/ri/districts/house/29	in-district	0.2105

to	rel	area_weight
us/states/ri/districts/house/30	in-district	0.1763

to	rel	area_weight
us/states/ri/districts/house/28	in-district	0.1526

to	rel	area_weight
us/states/ri/districts/house/40	in-district	0.1202

to	rel	area_weight
us/states/ri/districts/house/24	in-district	0.0528

to	rel	area_weight
us/states/ri/districts/house/20	in-district	0.0406

to	rel	area_weight
us/states/ri/districts/house/26	in-district	0.0331

to	rel	area_weight
us/states/ri/districts/house/21	in-district	0.03

to	rel	area_weight
us/states/ri/districts/house/22	in-district	0.0296

to	rel	area_weight
us/states/ri/districts/house/27	in-district	0.0283

to	rel	area_weight
us/states/ri/districts/house/23	in-district	0.0245

to	rel	area_weight
us/states/ri/districts/house/25	in-district	0.0172

to	rel	area_weight
us/states/ri/districts/house/19	in-district	0.0165

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Kent County, RI

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	171456
Under 18	30919
18–64	105520
65+	35017
Median household income	94345
Poverty rate	7.46
Homeownership rate	73.08
Unemployment rate	4.71
Median home value	366100
Gini index	0.4438
Vacancy rate	4.82
White	146114
Black	3552
Asian	5056
Native	451
Hispanic/Latino	11762
Bachelor's or higher	61842

Districts

RI-02 — 93% (congressional)
RI Senate District 21 — 30% (state senate)
RI Senate District 33 — 22% (state senate)
RI Senate District 35 — 9% (state senate)
RI Senate District 30 — 8% (state senate)
RI Senate District 34 — 8% (state senate)
RI Senate District 31 — 6% (state senate)
RI Senate District 29 — 5% (state senate)
RI Senate District 9 — 4% (state senate)
RI House District 29 — 21% (state house)
RI House District 30 — 18% (state house)
RI House District 28 — 15% (state house)
RI House District 40 — 12% (state house)
RI House District 24 — 5% (state house)
RI House District 20 — 4% (state house)
RI House District 26 — 3% (state house)
RI House District 21 — 3% (state house)
RI House District 22 — 3% (state house)
RI House District 27 — 3% (state house)
RI House District 23 — 2% (state house)
RI House District 25 — 2% (state house)
RI House District 19 — 2% (state house)

Source

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

5.1 KiB Raw Blame History Unescape Escape

Kent County, RI

Demographics (ACS 2023)

Districts

Source

5.1 KiB

Raw Blame History