Files
republic-os/data/jurisdictions/us/states/tx/counties/travis/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

3.8 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 Travis County, TX county 48453 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
1330015 268138 915472 146405 99611 10.93 52.11 4.56 523000 0.4851 5.58 729783 108536 106667 10618 433057 736330
to rel area_weight
us/states/tx/districts/10 in-district 0.4029
to rel area_weight
us/states/tx/districts/35 in-district 0.2822
to rel area_weight
us/states/tx/districts/37 in-district 0.2064
to rel area_weight
us/states/tx/districts/17 in-district 0.0626
to rel area_weight
us/states/tx/districts/21 in-district 0.0454
to rel area_weight
us/states/tx/districts/senate/14 in-district 0.5075
to rel area_weight
us/states/tx/districts/senate/25 in-district 0.328
to rel area_weight
us/states/tx/districts/senate/21 in-district 0.1645
to rel area_weight
us/states/tx/districts/house/19 in-district 0.2413
to rel area_weight
us/states/tx/districts/house/46 in-district 0.2212
to rel area_weight
us/states/tx/districts/house/47 in-district 0.1958
to rel area_weight
us/states/tx/districts/house/51 in-district 0.1693
to rel area_weight
us/states/tx/districts/house/48 in-district 0.0833
to rel area_weight
us/states/tx/districts/house/50 in-district 0.0542
to rel area_weight
us/states/tx/districts/house/49 in-district 0.0348
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
tx
2026-07-03

Travis County, TX

County jurisdiction — 4 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 1330015
Under 18 268138
1864 915472
65+ 146405
Median household income 99611
Poverty rate 10.93
Homeownership rate 52.11
Unemployment rate 4.56
Median home value 523000
Gini index 0.4851
Vacancy rate 5.58
White 729783
Black 108536
Asian 106667
Native 10618
Hispanic/Latino 433057
Bachelor's or higher 736330

Districts

Source

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