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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

4.0 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

Adams County, CO

county

08001

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
530225	131839	338461	59925	94571	9.81	68.57	4.63	484200	0.4125	3.61	291452	19155	20850	8817	226823	133904

to	rel	area_weight
us/states/co/districts/04	in-district	0.7097

to	rel	area_weight
us/states/co/districts/08	in-district	0.2099

to	rel	area_weight
us/states/co/districts/06	in-district	0.0792

to	rel	area_weight
us/states/co/districts/senate/28	in-district	0.11

to	rel	area_weight
us/states/co/districts/senate/24	in-district	0.0497

to	rel	area_weight
us/states/co/districts/senate/13	in-district	0.0312

to	rel	area_weight
us/states/co/districts/senate/25	in-district	0.0184

to	rel	area_weight
us/states/co/districts/house/56	in-district	0.7219

to	rel	area_weight
us/states/co/districts/house/36	in-district	0.0771

to	rel	area_weight
us/states/co/districts/house/32	in-district	0.0763

to	rel	area_weight
us/states/co/districts/house/48	in-district	0.0529

to	rel	area_weight
us/states/co/districts/house/31	in-district	0.0174

to	rel	area_weight
us/states/co/districts/house/34	in-district	0.015

to	rel	area_weight
us/states/co/districts/house/33	in-district	0.0142

to	rel	area_weight
us/states/co/districts/house/35	in-district	0.0128

to	rel	area_weight
us/states/co/districts/house/29	in-district	0.0117

field	source
demographics	Census ACS 2023

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

official

jurisdiction

county

2026-07-03

Adams County, CO

County jurisdiction — 2 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	530225
Under 18	131839
18–64	338461
65+	59925
Median household income	94571
Poverty rate	9.81
Homeownership rate	68.57
Unemployment rate	4.63
Median home value	484200
Gini index	0.4125
Vacancy rate	3.61
White	291452
Black	19155
Asian	20850
Native	8817
Hispanic/Latino	226823
Bachelor's or higher	133904

Districts

CO-04 — 71% (congressional)
CO-08 — 21% (congressional)
CO-06 — 8% (congressional)
CO Senate District 28 — 11% (state senate)
CO Senate District 24 — 5% (state senate)
CO Senate District 13 — 3% (state senate)
CO Senate District 25 — 2% (state senate)
CO House District 56 — 72% (state house)
CO House District 36 — 8% (state house)
CO House District 32 — 8% (state house)
CO House District 48 — 5% (state house)
CO House District 31 — 2% (state house)
CO House District 34 — 2% (state house)
CO House District 33 — 1% (state house)
CO House District 35 — 1% (state house)
CO House District 29 — 1% (state house)

Source

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

4.0 KiB Raw Blame History Unescape Escape

Adams County, CO

Demographics (ACS 2023)

Districts

Source

4.0 KiB

Raw Blame History