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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

5.7 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

Milwaukee County, WI

county

55079

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
926331	219441	570309	136581	64435	17.22	49.89	4.8	230700	0.4748	8.04	467429	239717	45162	6170	157150	292778

to	rel	area_weight
us/states/wi/districts/04	in-district	0.1176

to	rel	area_weight
us/states/wi/districts/01	in-district	0.0705

to	rel	area_weight
us/states/wi/districts/05	in-district	0.0153

to	rel	area_weight
us/states/wi/districts/senate/7	in-district	0.0481

to	rel	area_weight
us/states/wi/districts/senate/21	in-district	0.0442

to	rel	area_weight
us/states/wi/districts/senate/4	in-district	0.0384

to	rel	area_weight
us/states/wi/districts/senate/3	in-district	0.0209

to	rel	area_weight
us/states/wi/districts/senate/5	in-district	0.0192

to	rel	area_weight
us/states/wi/districts/senate/6	in-district	0.0188

to	rel	area_weight
us/states/wi/districts/senate/8	in-district	0.0139

to	rel	area_weight
us/states/wi/districts/house/21	in-district	0.0314

to	rel	area_weight
us/states/wi/districts/house/63	in-district	0.0285

to	rel	area_weight
us/states/wi/districts/house/12	in-district	0.0165

to	rel	area_weight
us/states/wi/districts/house/61	in-district	0.0157

to	rel	area_weight
us/states/wi/districts/house/23	in-district	0.0139

to	rel	area_weight
us/states/wi/districts/house/20	in-district	0.0116

to	rel	area_weight
us/states/wi/districts/house/11	in-district	0.0115

to	rel	area_weight
us/states/wi/districts/house/10	in-district	0.0104

to	rel	area_weight
us/states/wi/districts/house/14	in-district	0.0104

to	rel	area_weight
us/states/wi/districts/house/7	in-district	0.0093

to	rel	area_weight
us/states/wi/districts/house/13	in-district	0.0088

to	rel	area_weight
us/states/wi/districts/house/9	in-district	0.0073

to	rel	area_weight
us/states/wi/districts/house/17	in-district	0.0068

to	rel	area_weight
us/states/wi/districts/house/16	in-district	0.006

to	rel	area_weight
us/states/wi/districts/house/18	in-district	0.006

to	rel	area_weight
us/states/wi/districts/house/19	in-district	0.0051

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Milwaukee County, WI

County jurisdiction — 9 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	926331
Under 18	219441
18–64	570309
65+	136581
Median household income	64435
Poverty rate	17.22
Homeownership rate	49.89
Unemployment rate	4.8
Median home value	230700
Gini index	0.4748
Vacancy rate	8.04
White	467429
Black	239717
Asian	45162
Native	6170
Hispanic/Latino	157150
Bachelor's or higher	292778

Districts

WI-04 — 12% (congressional)
WI-01 — 7% (congressional)
WI-05 — 2% (congressional)
WI Senate District 7 — 5% (state senate)
WI Senate District 21 — 4% (state senate)
WI Senate District 4 — 4% (state senate)
WI Senate District 3 — 2% (state senate)
WI Senate District 5 — 2% (state senate)
WI Senate District 6 — 2% (state senate)
WI Senate District 8 — 1% (state senate)
WI House District 21 — 3% (state house)
WI House District 63 — 3% (state house)
WI House District 12 — 2% (state house)
WI House District 61 — 2% (state house)
WI House District 23 — 1% (state house)
WI House District 20 — 1% (state house)
WI House District 11 — 1% (state house)
WI House District 10 — 1% (state house)
WI House District 14 — 1% (state house)
WI House District 7 — 1% (state house)
WI House District 13 — 1% (state house)
WI House District 9 — 1% (state house)
WI House District 17 — 1% (state house)
WI House District 16 — 1% (state house)
WI House District 18 — 1% (state house)
WI House District 19 — 1% (state house)

Source

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

5.7 KiB Raw Blame History Unescape Escape

Milwaukee County, WI

Demographics (ACS 2023)

Districts

Source

5.7 KiB

Raw Blame History