Files
republic-os/data/jurisdictions/us/states/oh/counties/montgomery/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

2.7 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 Montgomery County, OH county 39113 OH
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
536096 118834 317651 99611 66139 15.01 62.46 5.72 180900 0.4587 8.51 366623 109607 12151 485 22744 162856
to rel area_weight
us/states/oh/districts/10 in-district 0.9998
to rel area_weight
us/states/oh/districts/senate/5 in-district 0.5538
to rel area_weight
us/states/oh/districts/senate/6 in-district 0.4461
to rel area_weight
us/states/oh/districts/house/40 in-district 0.3775
to rel area_weight
us/states/oh/districts/house/37 in-district 0.213
to rel area_weight
us/states/oh/districts/house/39 in-district 0.1763
to rel area_weight
us/states/oh/districts/house/38 in-district 0.1426
to rel area_weight
us/states/oh/districts/house/36 in-district 0.0906
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
oh
2026-07-03

Montgomery County, OH

County jurisdiction — 10 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 536096
Under 18 118834
1864 317651
65+ 99611
Median household income 66139
Poverty rate 15.01
Homeownership rate 62.46
Unemployment rate 5.72
Median home value 180900
Gini index 0.4587
Vacancy rate 8.51
White 366623
Black 109607
Asian 12151
Native 485
Hispanic/Latino 22744
Bachelor's or higher 162856

Districts

Source

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