Files
republic-os/data/jurisdictions/us/states/tx/counties/collin/index.md
T
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

3.4 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 Collin County, TX county 48085 TX
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
1163337 287584 741039 134714 121600 6.23 64.52 4.17 475600 0.4306 4.74 621943 127684 218741 5198 187150 606798
to rel area_weight
us/states/tx/districts/03 in-district 0.8069
to rel area_weight
us/states/tx/districts/04 in-district 0.1711
to rel area_weight
us/states/tx/districts/32 in-district 0.0219
to rel area_weight
us/states/tx/districts/senate/8 in-district 0.9288
to rel area_weight
us/states/tx/districts/senate/30 in-district 0.0505
to rel area_weight
us/states/tx/districts/senate/2 in-district 0.0206
to rel area_weight
us/states/tx/districts/house/67 in-district 0.3757
to rel area_weight
us/states/tx/districts/house/89 in-district 0.2454
to rel area_weight
us/states/tx/districts/house/66 in-district 0.1597
to rel area_weight
us/states/tx/districts/house/61 in-district 0.1503
to rel area_weight
us/states/tx/districts/house/70 in-district 0.0412
to rel area_weight
us/states/tx/districts/house/33 in-district 0.0277
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
tx
2026-07-03

Collin County, TX

County jurisdiction — 9 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 1163337
Under 18 287584
1864 741039
65+ 134714
Median household income 121600
Poverty rate 6.23
Homeownership rate 64.52
Unemployment rate 4.17
Median home value 475600
Gini index 0.4306
Vacancy rate 4.74
White 621943
Black 127684
Asian 218741
Native 5198
Hispanic/Latino 187150
Bachelor's or higher 606798

Districts

Source

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