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republic-os/data/jurisdictions/us/states/mi/counties/oakland/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

6.9 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 Oakland County, MI county 26125 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
1279825 259334 785435 235056 97760 7.73 72.67 4.79 343600 0.4672 5.5 885044 164389 109982 2045 64409 674250
to rel area_weight
us/states/mi/districts/09 in-district 0.4479
to rel area_weight
us/states/mi/districts/11 in-district 0.3707
to rel area_weight
us/states/mi/districts/07 in-district 0.0706
to rel area_weight
us/states/mi/districts/10 in-district 0.0405
to rel area_weight
us/states/mi/districts/12 in-district 0.0394
to rel area_weight
us/states/mi/districts/06 in-district 0.0308
to rel area_weight
us/states/mi/districts/senate/23 in-district 0.3403
to rel area_weight
us/states/mi/districts/senate/24 in-district 0.2298
to rel area_weight
us/states/mi/districts/senate/7 in-district 0.1202
to rel area_weight
us/states/mi/districts/senate/13 in-district 0.1052
to rel area_weight
us/states/mi/districts/senate/9 in-district 0.0903
to rel area_weight
us/states/mi/districts/senate/22 in-district 0.0403
to rel area_weight
us/states/mi/districts/senate/8 in-district 0.0362
to rel area_weight
us/states/mi/districts/senate/6 in-district 0.0248
to rel area_weight
us/states/mi/districts/senate/3 in-district 0.0129
to rel area_weight
us/states/mi/districts/house/51 in-district 0.1518
to rel area_weight
us/states/mi/districts/house/66 in-district 0.1491
to rel area_weight
us/states/mi/districts/house/52 in-district 0.0919
to rel area_weight
us/states/mi/districts/house/72 in-district 0.0801
to rel area_weight
us/states/mi/districts/house/54 in-district 0.0767
to rel area_weight
us/states/mi/districts/house/21 in-district 0.0568
to rel area_weight
us/states/mi/districts/house/20 in-district 0.0567
to rel area_weight
us/states/mi/districts/house/55 in-district 0.0464
to rel area_weight
us/states/mi/districts/house/19 in-district 0.0423
to rel area_weight
us/states/mi/districts/house/53 in-district 0.0423
to rel area_weight
us/states/mi/districts/house/68 in-district 0.0399
to rel area_weight
us/states/mi/districts/house/18 in-district 0.0369
to rel area_weight
us/states/mi/districts/house/56 in-district 0.0356
to rel area_weight
us/states/mi/districts/house/49 in-district 0.0336
to rel area_weight
us/states/mi/districts/house/6 in-district 0.0208
to rel area_weight
us/states/mi/districts/house/57 in-district 0.01
to rel area_weight
us/states/mi/districts/house/14 in-district 0.0098
to rel area_weight
us/states/mi/districts/house/23 in-district 0.0084
to rel area_weight
us/states/mi/districts/house/5 in-district 0.006
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
mi
2026-07-03

Oakland County, MI

County jurisdiction — 3 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 1279825
Under 18 259334
18–64 785435
65+ 235056
Median household income 97760
Poverty rate 7.73
Homeownership rate 72.67
Unemployment rate 4.79
Median home value 343600
Gini index 0.4672
Vacancy rate 5.5
White 885044
Black 164389
Asian 109982
Native 2045
Hispanic/Latino 64409
Bachelor's or higher 674250

Districts

Source

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