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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

4.7 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

Nassau County, NY

county

36059

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
1389591	298728	831363	259500	146202	5.42	81.95	4.82	684700	0.4509	4.36	789352	156203	169900	3134	260047	707373

to	rel	area_weight
us/states/ny/districts/03	in-district	0.363

to	rel	area_weight
us/states/ny/districts/04	in-district	0.2938

to	rel	area_weight
us/states/ny/districts/02	in-district	0.0507

to	rel	area_weight
us/states/ny/districts/senate/7	in-district	0.2699

to	rel	area_weight
us/states/ny/districts/senate/5	in-district	0.1681

to	rel	area_weight
us/states/ny/districts/senate/9	in-district	0.1062

to	rel	area_weight
us/states/ny/districts/senate/6	in-district	0.0929

to	rel	area_weight
us/states/ny/districts/senate/8	in-district	0.0567

to	rel	area_weight
us/states/ny/districts/house/15	in-district	0.1342

to	rel	area_weight
us/states/ny/districts/house/14	in-district	0.0974

to	rel	area_weight
us/states/ny/districts/house/13	in-district	0.0868

to	rel	area_weight
us/states/ny/districts/house/16	in-district	0.0777

to	rel	area_weight
us/states/ny/districts/house/20	in-district	0.0627

to	rel	area_weight
us/states/ny/districts/house/19	in-district	0.049

to	rel	area_weight
us/states/ny/districts/house/17	in-district	0.0407

to	rel	area_weight
us/states/ny/districts/house/9	in-district	0.0374

to	rel	area_weight
us/states/ny/districts/house/21	in-district	0.0371

to	rel	area_weight
us/states/ny/districts/house/18	in-district	0.0289

to	rel	area_weight
us/states/ny/districts/house/22	in-district	0.0269

to	rel	area_weight
us/states/ny/districts/house/10	in-district	0.0126

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Nassau County, NY

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	1389591
Under 18	298728
18–64	831363
65+	259500
Median household income	146202
Poverty rate	5.42
Homeownership rate	81.95
Unemployment rate	4.82
Median home value	684700
Gini index	0.4509
Vacancy rate	4.36
White	789352
Black	156203
Asian	169900
Native	3134
Hispanic/Latino	260047
Bachelor's or higher	707373

Districts

NY-03 — 36% (congressional)
NY-04 — 29% (congressional)
NY-02 — 5% (congressional)
NY Senate District 7 — 27% (state senate)
NY Senate District 5 — 17% (state senate)
NY Senate District 9 — 11% (state senate)
NY Senate District 6 — 9% (state senate)
NY Senate District 8 — 6% (state senate)
NY House District 15 — 13% (state house)
NY House District 14 — 10% (state house)
NY House District 13 — 9% (state house)
NY House District 16 — 8% (state house)
NY House District 20 — 6% (state house)
NY House District 19 — 5% (state house)
NY House District 17 — 4% (state house)
NY House District 9 — 4% (state house)
NY House District 21 — 4% (state house)
NY House District 18 — 3% (state house)
NY House District 22 — 3% (state house)
NY House District 10 — 1% (state house)

Source

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

4.7 KiB Raw Blame History Unescape Escape

Nassau County, NY

Demographics (ACS 2023)

Districts

Source

4.7 KiB

Raw Blame History