Files
republic-os/data/jurisdictions/us/states/mi/counties/jackson/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

2.5 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 Jackson County, MI county 26075 MI
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
160060 33464 96085 30511 66073 11.65 75.04 5.53 193700 0.4453 9.74 133048 11836 1239 495 6542 35224
to rel area_weight
us/states/mi/districts/05 in-district 0.9999
to rel area_weight
us/states/mi/districts/senate/14 in-district 0.7987
to rel area_weight
us/states/mi/districts/senate/17 in-district 0.2013
to rel area_weight
us/states/mi/districts/house/45 in-district 0.5511
to rel area_weight
us/states/mi/districts/house/47 in-district 0.2078
to rel area_weight
us/states/mi/districts/house/46 in-district 0.1724
to rel area_weight
us/states/mi/districts/house/48 in-district 0.0686
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
mi
2026-07-03

Jackson County, MI

County jurisdiction.

Demographics (ACS 2023)

Measure Value
Population 160060
Under 18 33464
1864 96085
65+ 30511
Median household income 66073
Poverty rate 11.65
Homeownership rate 75.04
Unemployment rate 5.53
Median home value 193700
Gini index 0.4453
Vacancy rate 9.74
White 133048
Black 11836
Asian 1239
Native 495
Hispanic/Latino 6542
Bachelor's or higher 35224

Districts

Source

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