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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

3.1 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

Rockingham County, NH

county

33015

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
319082	58963	195093	65026	118331	4.77	78.45	3.55	497500	0.4297	7.42	288970	2437	6262	469	11727	149644

to	rel	area_weight
us/states/nh/districts/01	in-district	0.7274

to	rel	area_weight
us/states/nh/districts/02	in-district	0.1856

to	rel	area_weight
us/states/nh/districts/senate/23	in-district	0.2305

to	rel	area_weight
us/states/nh/districts/senate/17	in-district	0.1648

to	rel	area_weight
us/states/nh/districts/senate/24	in-district	0.1292

to	rel	area_weight
us/states/nh/districts/senate/19	in-district	0.0981

to	rel	area_weight
us/states/nh/districts/senate/14	in-district	0.0891

to	rel	area_weight
us/states/nh/districts/senate/16	in-district	0.0758

to	rel	area_weight
us/states/nh/districts/senate/21	in-district	0.0661

to	rel	area_weight
us/states/nh/districts/senate/22	in-district	0.0599

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Rockingham County, NH

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	319082
Under 18	58963
18–64	195093
65+	65026
Median household income	118331
Poverty rate	4.77
Homeownership rate	78.45
Unemployment rate	3.55
Median home value	497500
Gini index	0.4297
Vacancy rate	7.42
White	288970
Black	2437
Asian	6262
Native	469
Hispanic/Latino	11727
Bachelor's or higher	149644

Districts

NH-01 — 73% (congressional)
NH-02 — 19% (congressional)
NH Senate District 23 — 23% (state senate)
NH Senate District 17 — 16% (state senate)
NH Senate District 24 — 13% (state senate)
NH Senate District 19 — 10% (state senate)
NH Senate District 14 — 9% (state senate)
NH Senate District 16 — 8% (state senate)
NH Senate District 21 — 7% (state senate)
NH Senate District 22 — 6% (state senate)

Source

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

3.1 KiB Raw Blame History Unescape Escape

Rockingham County, NH

Demographics (ACS 2023)

Districts

Source

3.1 KiB

Raw Blame History