Files
republic-os/data/jurisdictions/us/states/il/counties/cook/index.md
T
Fabio 199d8b37d3 Municipals: nest 1,823 city officeholders under their real counties
Pull Atlas's place→county crosswalk (Census TIGER 2024 places × county
geometries, 32,041 places) into the build as a committed raw input, and
use it to resolve municipal officeholders whose county was unknown.

- data/place_county_crosswalk.jsonl — new raw input (place_geoid → county_geoid)
- build.py — place-name+state → county_geoid → ACS county slug as a fallback
  in county_slug(); city_slug() generalized to non-FL bare place labels
- data/sources/sources.yaml — provenance entry for the crosswalk

_unresolved municipals: 1919 → 58. The remainder are genuine: CT planning
regions (post-county), county-level rows mislabeled municipal upstream,
consolidated city-counties (null label), Wikidata-QID placeholder names,
and ambiguous same-name places — left unresolved rather than guessed.

Join key is county_geoid (5-digit FIPS); the directory slug is taken from
the ACS county node so municipals nest under the exact existing county dir.
Deterministic (byte-identical rebuild); validate.py passes 19,721 records.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-04 20:23:57 -04:00

1.3 KiB
Raw Blame History

type, title, classification, fips, state, demographics, sources, confidence, tags, timestamp
type title classification fips state demographics 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
field source
demographics Census ACS 2023
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
1864 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

Source

  • demographics: Census ACS 2023