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republic-os/data/jurisdictions/us/states/il/counties/cook/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

14 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 Cook County, IL county 17031 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
5182090 1092202 3262732 827156 83498 13.49 57.74 7.01 324500 0.5043 7.74 2257930 1148066 411778 47333 1387163 2210554
to rel area_weight
us/states/il/districts/02 in-district 0.1018
to rel area_weight
us/states/il/districts/06 in-district 0.0861
to rel area_weight
us/states/il/districts/05 in-district 0.0728
to rel area_weight
us/states/il/districts/08 in-district 0.063
to rel area_weight
us/states/il/districts/01 in-district 0.0542
to rel area_weight
us/states/il/districts/04 in-district 0.0514
to rel area_weight
us/states/il/districts/09 in-district 0.0505
to rel area_weight
us/states/il/districts/07 in-district 0.042
to rel area_weight
us/states/il/districts/03 in-district 0.0338
to rel area_weight
us/states/il/districts/10 in-district 0.022
to rel area_weight
us/states/il/districts/11 in-district 0.0071
to rel area_weight
us/states/il/districts/senate/15 in-district 0.0421
to rel area_weight
us/states/il/districts/senate/18 in-district 0.04
to rel area_weight
us/states/il/districts/senate/26 in-district 0.0385
to rel area_weight
us/states/il/districts/senate/17 in-district 0.0359
to rel area_weight
us/states/il/districts/senate/14 in-district 0.0339
to rel area_weight
us/states/il/districts/senate/28 in-district 0.0327
to rel area_weight
us/states/il/districts/senate/19 in-district 0.0295
to rel area_weight
us/states/il/districts/senate/27 in-district 0.026
to rel area_weight
us/states/il/districts/senate/29 in-district 0.0246
to rel area_weight
us/states/il/districts/senate/9 in-district 0.0241
to rel area_weight
us/states/il/districts/senate/41 in-district 0.0225
to rel area_weight
us/states/il/districts/senate/4 in-district 0.022
to rel area_weight
us/states/il/districts/senate/22 in-district 0.0217
to rel area_weight
us/states/il/districts/senate/11 in-district 0.0207
to rel area_weight
us/states/il/districts/senate/39 in-district 0.0207
to rel area_weight
us/states/il/districts/senate/8 in-district 0.0173
to rel area_weight
us/states/il/districts/senate/16 in-district 0.0166
to rel area_weight
us/states/il/districts/senate/10 in-district 0.0163
to rel area_weight
us/states/il/districts/senate/1 in-district 0.0152
to rel area_weight
us/states/il/districts/senate/40 in-district 0.0112
to rel area_weight
us/states/il/districts/senate/5 in-district 0.0109
to rel area_weight
us/states/il/districts/senate/13 in-district 0.0102
to rel area_weight
us/states/il/districts/senate/3 in-district 0.0097
to rel area_weight
us/states/il/districts/senate/12 in-district 0.009
to rel area_weight
us/states/il/districts/senate/2 in-district 0.0068
to rel area_weight
us/states/il/districts/senate/20 in-district 0.0066
to rel area_weight
us/states/il/districts/senate/25 in-district 0.0057
to rel area_weight
us/states/il/districts/house/38 in-district 0.0235
to rel area_weight
us/states/il/districts/house/30 in-district 0.0234
to rel area_weight
us/states/il/districts/house/56 in-district 0.0229
to rel area_weight
us/states/il/districts/house/82 in-district 0.0225
to rel area_weight
us/states/il/districts/house/34 in-district 0.0224
to rel area_weight
us/states/il/districts/house/57 in-district 0.0223
to rel area_weight
us/states/il/districts/house/52 in-district 0.0221
to rel area_weight
us/states/il/districts/house/36 in-district 0.0205
to rel area_weight
us/states/il/districts/house/35 in-district 0.0195
to rel area_weight
us/states/il/districts/house/29 in-district 0.0187
to rel area_weight
us/states/il/districts/house/27 in-district 0.0183
to rel area_weight
us/states/il/districts/house/51 in-district 0.0163
to rel area_weight
us/states/il/districts/house/28 in-district 0.0156
to rel area_weight
us/states/il/districts/house/17 in-district 0.015
to rel area_weight
us/states/il/districts/house/44 in-district 0.0145
to rel area_weight
us/states/il/districts/house/77 in-district 0.0139
to rel area_weight
us/states/il/districts/house/33 in-district 0.0135
to rel area_weight
us/states/il/districts/house/54 in-district 0.0134
to rel area_weight
us/states/il/districts/house/7 in-district 0.0127
to rel area_weight
us/states/il/districts/house/53 in-district 0.0126
to rel area_weight
us/states/il/districts/house/21 in-district 0.0113
to rel area_weight
us/states/il/districts/house/20 in-district 0.0109
to rel area_weight
us/states/il/districts/house/15 in-district 0.0106
to rel area_weight
us/states/il/districts/house/55 in-district 0.0098
to rel area_weight
us/states/il/districts/house/80 in-district 0.0098
to rel area_weight
us/states/il/districts/house/31 in-district 0.0097
to rel area_weight
us/states/il/districts/house/22 in-district 0.0094
to rel area_weight
us/states/il/districts/house/8 in-district 0.0093
to rel area_weight
us/states/il/districts/house/18 in-district 0.0091
to rel area_weight
us/states/il/districts/house/2 in-district 0.0083
to rel area_weight
us/states/il/districts/house/43 in-district 0.0072
to rel area_weight
us/states/il/districts/house/1 in-district 0.0069
to rel area_weight
us/states/il/districts/house/32 in-district 0.0069
to rel area_weight
us/states/il/districts/house/78 in-district 0.0068
to rel area_weight
us/states/il/districts/house/16 in-district 0.0067
to rel area_weight
us/states/il/districts/house/37 in-district 0.006
to rel area_weight
us/states/il/districts/house/25 in-district 0.0057
to rel area_weight
us/states/il/districts/house/49 in-district 0.0057
to rel area_weight
us/states/il/districts/house/10 in-district 0.0056
to rel area_weight
us/states/il/districts/house/6 in-district 0.0055
to rel area_weight
us/states/il/districts/house/19 in-district 0.0054
to rel area_weight
us/states/il/districts/house/9 in-district 0.0053
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
il
2026-07-03

Cook County, IL

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 5182090
Under 18 1092202
18–64 3262732
65+ 827156
Median household income 83498
Poverty rate 13.49
Homeownership rate 57.74
Unemployment rate 7.01
Median home value 324500
Gini index 0.5043
Vacancy rate 7.74
White 2257930
Black 1148066
Asian 411778
Native 47333
Hispanic/Latino 1387163
Bachelor's or higher 2210554

Districts

Source

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