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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

Jackson County, MS

county

28059

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
145249	33197	86985	25067	66201	13.84	72.66	6.71	193100	0.4625	9.3	97625	27543	3175	652	11070	36341

to	rel	area_weight
us/states/ms/districts/04	in-district	0.7378

to	rel	area_weight
us/states/ms/districts/senate/51	in-district	0.3376

to	rel	area_weight
us/states/ms/districts/senate/47	in-district	0.2985

to	rel	area_weight
us/states/ms/districts/senate/52	in-district	0.0793

to	rel	area_weight
us/states/ms/districts/house/109	in-district	0.3028

to	rel	area_weight
us/states/ms/districts/house/114	in-district	0.1423

to	rel	area_weight
us/states/ms/districts/house/111	in-district	0.1231

to	rel	area_weight
us/states/ms/districts/house/112	in-district	0.1047

to	rel	area_weight
us/states/ms/districts/house/110	in-district	0.0226

to	rel	area_weight
us/states/ms/districts/house/113	in-district	0.02

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Jackson County, MS

County jurisdiction — 4 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	145249
Under 18	33197
18–64	86985
65+	25067
Median household income	66201
Poverty rate	13.84
Homeownership rate	72.66
Unemployment rate	6.71
Median home value	193100
Gini index	0.4625
Vacancy rate	9.3
White	97625
Black	27543
Asian	3175
Native	652
Hispanic/Latino	11070
Bachelor's or higher	36341

Districts

MS-04 — 74% (congressional)
MS Senate District 51 — 34% (state senate)
MS Senate District 47 — 30% (state senate)
MS Senate District 52 — 8% (state senate)
MS House District 109 — 30% (state house)
MS House District 114 — 14% (state house)
MS House District 111 — 12% (state house)
MS House District 112 — 10% (state house)
MS House District 110 — 2% (state house)
MS House District 113 — 2% (state house)

Source

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

3.1 KiB Raw Blame History Unescape Escape

Jackson County, MS

Demographics (ACS 2023)

Districts

Source

3.1 KiB

Raw Blame History