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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

4.4 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

Franklin County, OH

county

39049

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
1333048	310110	849259	173679	75176	14.7	52.82	4.56	288400	0.4686	7.12	785967	311199	74387	3546	99547	523627

to	rel	area_weight
us/states/oh/districts/15	in-district	0.5935

to	rel	area_weight
us/states/oh/districts/03	in-district	0.4061

to	rel	area_weight
us/states/oh/districts/senate/3	in-district	0.3895

to	rel	area_weight
us/states/oh/districts/senate/16	in-district	0.2977

to	rel	area_weight
us/states/oh/districts/senate/15	in-district	0.1606

to	rel	area_weight
us/states/oh/districts/senate/25	in-district	0.1522

to	rel	area_weight
us/states/oh/districts/house/5	in-district	0.1586

to	rel	area_weight
us/states/oh/districts/house/11	in-district	0.1218

to	rel	area_weight
us/states/oh/districts/house/4	in-district	0.1216

to	rel	area_weight
us/states/oh/districts/house/10	in-district	0.1205

to	rel	area_weight
us/states/oh/districts/house/12	in-district	0.1103

to	rel	area_weight
us/states/oh/districts/house/2	in-district	0.0665

to	rel	area_weight
us/states/oh/districts/house/6	in-district	0.0564

to	rel	area_weight
us/states/oh/districts/house/8	in-district	0.0543

to	rel	area_weight
us/states/oh/districts/house/1	in-district	0.0516

to	rel	area_weight
us/states/oh/districts/house/7	in-district	0.0493

to	rel	area_weight
us/states/oh/districts/house/9	in-district	0.0465

to	rel	area_weight
us/states/oh/districts/house/3	in-district	0.0425

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Franklin County, OH

County jurisdiction — 6 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	1333048
Under 18	310110
18–64	849259
65+	173679
Median household income	75176
Poverty rate	14.7
Homeownership rate	52.82
Unemployment rate	4.56
Median home value	288400
Gini index	0.4686
Vacancy rate	7.12
White	785967
Black	311199
Asian	74387
Native	3546
Hispanic/Latino	99547
Bachelor's or higher	523627

Districts

OH-15 — 59% (congressional)
OH-03 — 41% (congressional)
OH Senate District 3 — 39% (state senate)
OH Senate District 16 — 30% (state senate)
OH Senate District 15 — 16% (state senate)
OH Senate District 25 — 15% (state senate)
OH House District 5 — 16% (state house)
OH House District 11 — 12% (state house)
OH House District 4 — 12% (state house)
OH House District 10 — 12% (state house)
OH House District 12 — 11% (state house)
OH House District 2 — 7% (state house)
OH House District 6 — 6% (state house)
OH House District 8 — 5% (state house)
OH House District 1 — 5% (state house)
OH House District 7 — 5% (state house)
OH House District 9 — 5% (state house)
OH House District 3 — 4% (state house)

Source

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

4.4 KiB Raw Blame History Unescape Escape

Franklin County, OH

Demographics (ACS 2023)

Districts

Source

4.4 KiB

Raw Blame History