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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

3.5 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

Clark County, NV

county

32003

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
2329548	517221	1441908	370419	76472	13.04	57.78	7.59	431000	0.4683	9.11	1016671	280163	250287	27274	742075	606317

to	rel	area_weight
us/states/nv/districts/04	in-district	0.6235

to	rel	area_weight
us/states/nv/districts/03	in-district	0.2495

to	rel	area_weight
us/states/nv/districts/01	in-district	0.1254

to	rel	area_weight
us/states/nv/districts/senate/20	in-district	0.5383

to	rel	area_weight
us/states/nv/districts/senate/19	in-district	0.4007

to	rel	area_weight
us/states/nv/districts/senate/21	in-district	0.0087

to	rel	area_weight
us/states/nv/districts/senate/11	in-district	0.006

to	rel	area_weight
us/states/nv/districts/senate/1	in-district	0.0054

to	rel	area_weight
us/states/nv/districts/senate/10	in-district	0.0053

to	rel	area_weight
us/states/nv/districts/house/36	in-district	0.4006

to	rel	area_weight
us/states/nv/districts/house/19	in-district	0.3345

to	rel	area_weight
us/states/nv/districts/house/23	in-district	0.2039

to	rel	area_weight
us/states/nv/districts/house/12	in-district	0.0077

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Clark County, NV

County jurisdiction — 3 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	2329548
Under 18	517221
18–64	1441908
65+	370419
Median household income	76472
Poverty rate	13.04
Homeownership rate	57.78
Unemployment rate	7.59
Median home value	431000
Gini index	0.4683
Vacancy rate	9.11
White	1016671
Black	280163
Asian	250287
Native	27274
Hispanic/Latino	742075
Bachelor's or higher	606317

Districts

NV-04 — 62% (congressional)
NV-03 — 25% (congressional)
NV-01 — 13% (congressional)
NV Senate District 20 — 54% (state senate)
NV Senate District 19 — 40% (state senate)
NV Senate District 21 — 1% (state senate)
NV Senate District 11 — 1% (state senate)
NV Senate District 1 — 1% (state senate)
NV Senate District 10 — 1% (state senate)
NV House District 36 — 40% (state house)
NV House District 19 — 33% (state house)
NV House District 23 — 20% (state house)
NV House District 12 — 1% (state house)

Source

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

3.5 KiB Raw Blame History Unescape Escape

Clark County, NV

Demographics (ACS 2023)

Districts

Source

3.5 KiB

Raw Blame History