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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

4.3 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

Denver County, CO

county

08031

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
718877	129515	499651	89711	94718	11.24	48.76	4.88	616000	0.4905	6.72	426585	64967	26665	7263	201140	419205

to	rel	area_weight
us/states/co/districts/01	in-district	0.9767

to	rel	area_weight
us/states/co/districts/06	in-district	0.0097

to	rel	area_weight
us/states/co/districts/08	in-district	0.0067

to	rel	area_weight
us/states/co/districts/07	in-district	0.0053

to	rel	area_weight
us/states/co/districts/senate/33	in-district	0.4767

to	rel	area_weight
us/states/co/districts/senate/34	in-district	0.1706

to	rel	area_weight
us/states/co/districts/senate/32	in-district	0.1507

to	rel	area_weight
us/states/co/districts/senate/31	in-district	0.1197

to	rel	area_weight
us/states/co/districts/senate/26	in-district	0.0817

to	rel	area_weight
us/states/co/districts/house/7	in-district	0.3732

to	rel	area_weight
us/states/co/districts/house/8	in-district	0.1126

to	rel	area_weight
us/states/co/districts/house/1	in-district	0.1049

to	rel	area_weight
us/states/co/districts/house/5	in-district	0.0989

to	rel	area_weight
us/states/co/districts/house/2	in-district	0.0807

to	rel	area_weight
us/states/co/districts/house/4	in-district	0.0749

to	rel	area_weight
us/states/co/districts/house/9	in-district	0.0588

to	rel	area_weight
us/states/co/districts/house/6	in-district	0.0582

to	rel	area_weight
us/states/co/districts/house/3	in-district	0.0371

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Denver County, CO

County jurisdiction.

Demographics (ACS 2023)

Measure	Value
Population	718877
Under 18	129515
18–64	499651
65+	89711
Median household income	94718
Poverty rate	11.24
Homeownership rate	48.76
Unemployment rate	4.88
Median home value	616000
Gini index	0.4905
Vacancy rate	6.72
White	426585
Black	64967
Asian	26665
Native	7263
Hispanic/Latino	201140
Bachelor's or higher	419205

Districts

CO-01 — 98% (congressional)
CO-06 — 1% (congressional)
CO-08 — 1% (congressional)
CO-07 — 1% (congressional)
CO Senate District 33 — 48% (state senate)
CO Senate District 34 — 17% (state senate)
CO Senate District 32 — 15% (state senate)
CO Senate District 31 — 12% (state senate)
CO Senate District 26 — 8% (state senate)
CO House District 7 — 37% (state house)
CO House District 8 — 11% (state house)
CO House District 1 — 10% (state house)
CO House District 5 — 10% (state house)
CO House District 2 — 8% (state house)
CO House District 4 — 7% (state house)
CO House District 9 — 6% (state house)
CO House District 6 — 6% (state house)
CO House District 3 — 4% (state house)

Source

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

4.3 KiB Raw Blame History Unescape Escape

Denver County, CO

Demographics (ACS 2023)

Districts

Source

4.3 KiB

Raw Blame History