Files
republic-os/data/jurisdictions/us/states/il/counties/lasalle/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

3.0 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 LaSalle County, IL county 17099 IL
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
108714 23020 64025 21669 73045 13.91 74.45 5.35 161900 0.4442 8.97 92952 2796 911 210 12161 20803
to rel area_weight
us/states/il/districts/14 in-district 0.6144
to rel area_weight
us/states/il/districts/16 in-district 0.3856
to rel area_weight
us/states/il/districts/senate/38 in-district 0.4043
to rel area_weight
us/states/il/districts/senate/53 in-district 0.3132
to rel area_weight
us/states/il/districts/senate/37 in-district 0.2825
to rel area_weight
us/states/il/districts/house/76 in-district 0.2982
to rel area_weight
us/states/il/districts/house/74 in-district 0.2825
to rel area_weight
us/states/il/districts/house/106 in-district 0.201
to rel area_weight
us/states/il/districts/house/105 in-district 0.1123
to rel area_weight
us/states/il/districts/house/75 in-district 0.1061
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
il
2026-07-03

LaSalle County, IL

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 108714
Under 18 23020
1864 64025
65+ 21669
Median household income 73045
Poverty rate 13.91
Homeownership rate 74.45
Unemployment rate 5.35
Median home value 161900
Gini index 0.4442
Vacancy rate 8.97
White 92952
Black 2796
Asian 911
Native 210
Hispanic/Latino 12161
Bachelor's or higher 20803

Districts

Source

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