Files
republic-os/data/jurisdictions/us/states/ia/counties/story/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

3.1 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 Story County, IA county 19169 IA
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
100466 16276 70915 13275 69685 18.24 55.52 4.76 258700 0.469 7.12 82831 2796 6641 465 5184 41629
to rel area_weight
us/states/ia/districts/04 in-district 0.9999
to rel area_weight
us/states/ia/districts/senate/26 in-district 0.7399
to rel area_weight
us/states/ia/districts/senate/28 in-district 0.126
to rel area_weight
us/states/ia/districts/senate/25 in-district 0.0927
to rel area_weight
us/states/ia/districts/senate/24 in-district 0.0414
to rel area_weight
us/states/ia/districts/house/51 in-district 0.7399
to rel area_weight
us/states/ia/districts/house/55 in-district 0.126
to rel area_weight
us/states/ia/districts/house/49 in-district 0.0757
to rel area_weight
us/states/ia/districts/house/48 in-district 0.0414
to rel area_weight
us/states/ia/districts/house/50 in-district 0.017
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
ia
2026-07-03

Story County, IA

County jurisdiction — 8 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 100466
Under 18 16276
1864 70915
65+ 13275
Median household income 69685
Poverty rate 18.24
Homeownership rate 55.52
Unemployment rate 4.76
Median home value 258700
Gini index 0.469
Vacancy rate 7.12
White 82831
Black 2796
Asian 6641
Native 465
Hispanic/Latino 5184
Bachelor's or higher 41629

Districts

Source

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